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DS211 Release Notes

(2016/05/11)

  1. Upgraded NTP to 4.2.8p7 to address multiple vulnerabilities (CVE-2016-1547, CVE-2016-1548, CVE-2016-1549, CVE-2016-1550, CVE-2016-1551, CVE-2016-2516, CVE-2016-2517, CVE-2016-2518, CVE-2016-2519).
  2. Upgraded OpenSSL to 1.0.1t to address multiple vulnerabilities (CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, CVE-2016-2108, CVE-2016-2109, CVE-2016-2176).
  3. Before the official patch is released, workaround is applied to mitigate multiple vulnerabilities of ImageMagick module (CVE-2016-3714, CVE-2016-3715, CVE-2016-3716, CVE-2016-3717, CVE-2016-3718).

(2016/05/06)

  1. Applied the enhanced official workaround to mitigate multiple vulnerabilities of ImageMagick module (CVE-2016-3714, CVE-2016-3715, CVE-2016-3716, CVE-2016-3717, CVE-2016-3718).

(2016/05/06)

  1. Upgraded NTP to 4.2.8p7 to address multiple vulnerabilities (CVE-2016-1547, CVE-2016-1548, CVE-2016-1549, CVE-2016-1550, CVE-2016-1551, CVE-2016-2516, CVE-2016-2517, CVE-2016-2518, CVE-2016-2519).
  2. Upgraded OpenSSL to 1.0.2h to address multiple vulnerabilities (CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, CVE-2016-2108, CVE-2016-2109, CVE-2016-2176).
  3. Enhanced the compatibility of Synology NAS with Hyper-V exports.
  4. Fixed an issue where adding ACL permissions or changing file owner would fail in Windows via SMB.
  5. Fixed an issue where iSCSI ACL could not access LUNs properly.
  6. Fixed an issue where editing shared folders would fail when shared folder netlogn/sysvol existed.
  7. Fixed an issue where channel scan could not be performed on entry Marvell models with certain DVB-T dongles.
  8. Fixed an issue where LUNs could not be backed up to an external SATA device.
  9. Fixed an issue where iSCSI service might cause a system crash in a VMware environment under heavy load.
  10. Before the official patch is released, workaround is applied to mitigate multiple vulnerabilities of ImageMagick module (CVE-2016-3714, CVE-2016-3715, CVE-2016-3716, CVE-2016-3717, CVE-2016-3718).

(2016/04/28)

What's New

  1. This update includes all bug fixes as well as security fixes in the previously released updates since DSM 5.2-5644.

Fixed Issue

  1. Improved performance of backup tasks and data restoring in Backup & Restore.
  2. Improved backup stability in Backup & Restore when files are being edited.
  3. You may now choose to reset the system without resetting the password at Control Panel > Update & Restore.
  4. Added full-speed fan mode to provide the best cooling effects for Synology NAS.
  5. Fixed multiple vulnerabilities regarding Samba module (CVE-2016-2118, CVE-2015-5370, CVE-2016-2110, CVE-2016-2111, CVE-2016-2112, CVE-2016-2113, CVE-2016-2114, CVE-2016-2115).
  6. Fixed an issue where iSCSI service could not start upon system boot with snapshot retention policy enabled in DSM 5.2-5644.
  7. Fixed an issue where iSCSI service could not respond under certain conditions when LUN was being created or removed.
  8. Fixed an issue where the system could not enter hibernation with Snapshot Manager for VMware registered.
  9. To enhance the security level, Synology's default administrator account "admin" with the blank password will no longer be allowed and will be disabled after this update. It is also highly recommended that you increase the password strength of all accounts belonging to the administrators group.
  10. Fixed an issue where permission settings for a shared folder could not be edited in Windows if the folder was mounted via SMB.

(2016/04/22)

  1. Fixed multiple issues that might cause the iSCSI service to hang under heavy loading and performing VMware commands.
  2. Fixed an issue where the file created time was not correctly set.
  3. Fixed an issue where LUN backup tasks of Hyper Backup could not be completed due to insufficient disk space after upgrade to DSM 6.0.
  4. Fixed multiple vulnerabilities regarding the Samba module (CVE-2016-2118, CVE-2015-5370, CVE-2016-2110, CVE-2016-2111, CVE-2016-2112, CVE-2016-2113, CVE-2016-2114, CVE-2016-2115).
  5. Fixed an issue where changing the VLAN configurations might cause certain packages to operate abnormally.
  6. Fixed an issue where configurations at Control Panel > Network > Network Interface could not be edited if IPv6 was configured before upgrade to DSM 6.0 from DSM 5.2.

(2016/04/18)

  1. Fixed an issue where DSM 6.0-7321 Update 1 could not be normally installed with Auto-Update.

    Note: This update does not require system reboot.

(2016/04/15)

  1. Improved the stability when connecting via AFP protocol.
  2. Fixed a security vulnerability regarding Samba file service (CVE-2016-2118, also known as Badlock).
  3. Fixed an issue where a false-alarm warning about unexpected file changes occurs when saving files in Office Excel 2003.
  4. Fixed an issue where Docker DSM might be terminated even when valid licenses are imported.
  5. Fixed multiple issues that might cause iSCSI service to hang under heavy loading and performing Vmware VAAI commands.
  6. Fixed an issue in which the configuration change of VLAN could result in abnormal functionality of certain packages. e.g. Surveillance Station
  7. Fixed an issue where the DSM welcome title and message will be reset to default if users set it to blank.

    Note: This update does not require system reboot.

(2016/04/13)

  1. Fixed a security vulnerability regarding Samba file service (CVE-2016-2118, also known as Badlock).

    Note: This update does not require system reboot.

(2016/03/24)

Compatibility and Installation

  1. Some features have specific hardware requirements and are only available on certain Synology NAS products.
  2. For security purposes, admin accounts with blank passwords will be disabled after the upgrade, and password change will be required.
  3. Some third­-party packages may not be compatible with DSM 6.0; hence disabling the packages before upgrading to DSM 6.0 is necessary.
  4. The current Alias settings in Application Portal will be disabled and require manual configuration after updating to DSM 6.0.
  5. The DDNS of f3322.org is removed in DSM 6.0 official release due to unclarified domain usage violation. Please refer to http://www.pubyun.com/p/notice/ for details.
  6. Due to the discontinued support by the open source team, the Asterisk package will no longer be supported after DSM 6.0.
  7. If phpMyAdmin was upgraded during DSM 6.0 Beta 2, you need to uninstall it first so that its latest update will be available at Package Center.
  8. The following packages will not be supported by NVR216 after upgrading to DSM 6.0:
    • PHP
    • Text Editor
    • Web Station
    • WebDAV
  9. Internet Explorer is no longer supported on DSM 6.0 and onward. Please refer to Software Spec for details

What’s New in DSM 6.0

  1. Btrfs File System
    • Set usage/user quota for shared folders.
    • Enable file compression to increase the flexibility of volume usage.
    • Perform defragmentation to increase system performance.
    • Data checksum is enabled by default and data scrubbing can be run to verify data integrity.
    • When file versioning is enabled in Cloud Station, it will not occupy additional storage on Btrfs file system. On other file systems, file versioning will occupy additional space equal to the size of each shared folder.
    • Files will be backed up once the backup task is started, even if the files are changed or deleted afterwards.
    • Converting existing ext4 file system to Btrfs is not supported. To store files under Btrfs file system you must create a new Btrfs volume and move the files to the new file system.
    • Available on the following models:
      • 16­-series: RS2416RP+, RS2416+, RS18016xs+, DS716+, DS216+
      • 15­-series: RC18015xs+, RS815RP+, RS815+, DS3615xs, DS2415+, DS1815+, DS1515+, DS415+
      • 14­-series: RS3614xs+, RS3614xs, RS3614RPxs
      • 13­-series: RS3413xs+, RS10613xs+
      • 12­-series: DS3612xs, RS3412xs, RS3412RPxs
      • 11­-series: DS3611xs, RS3411xs, RS3411RPxs
  2. Service Modularization
    • Some of the DSM built­-in features have been modularized into packages to ensure better system maintenance and update flexibility.
    • Modularization in DSM 6.0 includes Storage Analyzer, Backup & Restore, PHP, Web Station and Text Editor, Log Center (with basic built­-in functions in DSM and extensive functions via package download), WebDAV and Snapshot Replication.
  3. 64­-Bit Architecture
    • DSM 6.0 has been optimized for all models based on Intel 64­-bit processors to improve general performance.
    • Supports over 4GB memory allocation for one single process to deploy large scale application.
  4. High Availability Manager
    • When a split­-brain error occurs in an HA cluster, you can designate one server as the active server and overwrite the data on the other server. No full data replication is required.
    • When a split­-brain error occurs, you can view the recent system information, iSCSI Target connection history and file difference in each shared folder.
    • Reduced the downtime for upgrading a cluster by 50%.
    • Reduced the time to bind and unbind a cluster by 20%.
    • Reduced the occurrence of split­-brain errors.
    • Supports Docker DSM.
  5. High Availability Manager for RC18015xs+
    • Supports Virtual DSM.
    • Supports Docker DSM.
  6. Backup & Replication
    • Backup & Replication features are now available in ​add-­on packages Hyper Backup ​(backup client) and Hyper Backup Vault ​(backup server). The existing Backup & Replication task settings will be migrated to the new package automatically upon upgrading to DSM 6.0. Some settings are relocated to Control Panel:
      • rsync: Control Panel > File Services > rsync
      • Shared Folder Sync: Control Panel > Shared Folder Sync
      • For features of Hyper Backup ​and Hyper Backup Vault​, please refer to the What’s New in the Packages section.
  7. Security
    • CSP support can effectively prevent XSS attacks.
    • TLS/SSL profiles can be adjusted according to your browser compatibility and security requirements.
    • Root account is replaced by administrators group credentials to log into SSH to enhance security.
  8. Certificate
    • The integration of Let’s Encrypt helps provide your Synology NAS with secure connection easily and effortlessly.
    • Multiple certificates are now supported to increase the flexibility for hosting several different hostnames.
  9. File Station
    • Supports mounting NFS shared folders on folders on Synology NAS.
    • Aviary photo editor is introduced to replace the existing service for a more intuitive interface.
    • Multiple files can be downloaded without being compressed into one giant file on Chrome browser (on Windows computers only).
  10. Content Search
    • Search in File Station now allows you to match the document content or even the metadata of multimedia files for a more effective search result.
    • You can now use Mac Finder to quickly search the content of indexed files within mounted folders on your Synology NAS.
  11. File sharing
    • Collect files via the intuitive File Request feature.
    • Customize the background picture and logo that you see when sharing files.
    • File sharing and file request have been redesigned for mobile interface to ensure a consistent user experience.
  12. Accessibility
    • DSM is now accessible to visually impaired users.
    • Fully supported for accessibility in File Station, Desktop navigation, and Keyboard Shortcuts.
    • Six modules supported in Control Panel: Shared Folder, File Service, User, Group, QuickConnect, and Update & Restore > Update.
  13. 2-­Step Verification
    • You can now add and manage your most frequently used devices as trusted devices without entering verification code every time you log in.
  14. QuickConnect
    • Relay service can now be disabled to meet enterprise policies.
  15. 802.1X
    • Added support of 802.1X authentication for wired networks.
  16. Firewall
    • Organize your firewall rules into different profiles.
  17. DHCP Server
    • Supports standard DHCP options.
    • Supports vendor specific options.
    • Supports downloading PXE boot loader files from remote TFTP servers.
  18. SSD Cache
    • Create an SSD cache consisting of up to 12 SSD devices.
    • When SSD cache is enabled on a volume with advanced iSCSI LUNs, the performance can be improved up to 30%.
    • You can now use different SSD models to create an SSD cache.
  19. Storage Manager
    • Configure the description for volumes and Disk Groups.
    • For RAID Groups, the number of disks for each RAID Array can be 6, 12 or 24.
  20. Customized Domain Name for DSM
    • Customized domain name can now be used for accessing DSM more easily.
  21. Application Portal
    • DSM can now serve as a reverse proxy server.
    • Customized domain name can now be used for directly accessing Synology applications.
  22. Dynamic DNS Support
    • Added new DDNS provider TWNIC to support domain names with Traditional Chinese characters.
  23. Web Enhancement
    • HTTP compression can be enabled to effectively compress packets to reduce the size of web transfer.
    • HTTP/2 is now supported as an replacement of SPDY to increase the transfer speed for high latency connection.
  24. DSM mobile
    • Comes with a brand new user interface.
    • View and update your DSM version directly.
    • Added support for updating packages in Package Center.
    • Displays volume and disk information in Storage Manager.
    • Displays memory composition in Resource Monitor.
  25. Theme Change
    • Light and dark themes are supported for changing the system style within DSM.
  26. Keyboard Shortcut
    • When typing in the text fields, keyboard shortcuts will be temporarily disabled to avoid unintentional entries.
  27. Resource Monitor
    • You can view the throughput, latency, IOPS, IO Size and queue depth of each iSCSI LUN.
  28. Task Scheduler
    • You can now view the status of last run tasks to monitor the results.
  29. Package Center
    • Packages are divided into two main categories, Synology and Third­-party, for better recognition.

What’s New in Packages

  1. Virtual DSM Manager (Beta)
    • Run multiple Virtual DSM instances on a single server using the virtualization technology.
    • Perform live migration of virtual machines by relocating a virtual machine from one host to another in just a few minutes without interruption while keeping its storage unchanged.
    • 4GB RAM or more is required to run Virtual DSM. System with less than 4GB RAM can only be used as a storage resource.
    • Virtual DSM Manager is not supported on hosts running Synology High Availability.
    • The beta program will continue after DSM 6.0 official release.
    • Available on the following models:
      1. 16­-series: RS2416RP+, RS2416+, RS18016xs+
      2. 15­-series: RS815RP+, RS815+, DS3615xs, DS2415+, DS1815+, DS1515+, DS415+
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs
      4. 13­-series: RS3413xs+, RS10613xs+
      5. 12­-series: DS3612xs, RS3412xs, RS3412RPxs
      6. 11­-series: DS3611xs, RS3411xs, RS3411RPxs
  2. Docker DSM (Beta)
    • Run multiple Docker DSM instances on a single server using the container technology.
    • A Btrfs volume is required to store Docker DSM data. System data can be backed up and replicated.
    • Available on the following models:
      1. 16­-series: RS2416RP+, RS2416+, RS18016xs+, DS716+, DS216+
      2. 15­-series: RS815RP+, RS815+, DS3615xs, DS2415+, DS1815+, DS1515+, DS415+
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs
      4. 13­-series: RS3413xs+, RS10613xs+
      5. 12­-series: DS3612xs, RS3412xs, RS3412RPxs
      6. 11­-series: DS3611xs, RS3411xs, RS3411RPxs
  3. Snapshot Replication
    • Snapshot Replication is now a stand-­alone package. It is previously named as Snapshot & Replication​in DSM 6.0 Beta and Data Protection Manager ​in DSM 5.2.
    • Shared Folder Snapshot
      1. Take a snapshot of shared folders up to every 5 minutes.
      2. View snapshot data in all file services or File Station, or by clicking the Previous Versions tab in the Properties dialogue box in File Explorer on Windows PC.
      3. Increase the maximum snapshot versions of a shared folder to 1024 for all currently available models (except for DS216+ on which the number is limited to 256).
      4. Limit the maximum snapshot versions of all the shared folders to 65536 for all currently available models (except for DS216+ on which the number is limited to 4096).
      5. Supports shared folders located on Btrfs volumes.
    • Shared Folder & LUN Replication
      1. Replicate your data in shared folders and iSCSI LUNs from one server to another by taking and sending a snapshot to the remote server.
      2. Extend a replication by replicating data from a destination server to another secondary destination server to make multiple copies of your data.
      3. Replicate one shared folder or iSCSI LUN to up to 3 destination servers from the same source server.
      4. Limit the maximum number of replication tasks to 64.
      5. Statistics of transferred size and sync duration are recorded and displayed as a report.
      6. Allows administrator users to export the replicated data to external devices, and then deliver and import it to the recovery site, reducing bandwidth usage in your production environment.
      7. Provides an overview topology to show how your replicas are stored.
      8. Supports port forwarding by customizing address and port of a replication task.
      9. Now you can encrypt replication transmission.
      10. iSCSI LUN replication can be managed via Synology Snapshot Replication or VMware vCenter Site Recovery Manager. (Installing Synology SRA on VMware Site Recovery Manager servers is required.)
      11. Only Advanced iSCSI LUNs and shared folders on Btrfs volumes are supported.
    • Recovery
      1. You can perform a failover on shared folders or iSCSI LUNs by making the replicas on the destination server writable when the source server is not healthy.
      2. You can perform a test failover to make a clone and run all necessary tests in the event of disaster.
      3. You can perform a force failover when the source server is healthy.
      4. After performing a failover, you can perform a re-­protect action to sync data on two servers again.
      5. When performing a re­-protect action, you can choose either of the servers to sync data from and choose the new source server for the replication task.
    • Available on the following models:
      1. 16­-series: RS2416RP+, RS2416+, RS18016xs+, DS716+, DS216+
      2. 15­-series: RC18015xs+, RS815RP+, RS815+, DS3615xs, DS2415+, DS1815+, DS1515+, DS415+
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs
      4. 13­-series: RS3413xs+, RS10613xs+
      5. 12­-series: DS3612xs, RS3412xs, RS3412RPxs
      6. 11­-series: DS3611xs, RS3411xs, RS3411RPxs
  4. MailPlus Server (Beta)
    • Please note that the Beta program will continue after DSM 6.0 official release.
    • Starting from MailPlus Server 1.0 official release, MailPlus Server will include 5 free mail accounts by default, and licenses will be required for additional mail accounts. During the Beta program, no licenses will be required for any email accounts.
    • MailPlus Server provides enterprise­-grade mail server features and advanced active-­active architecture, allowing administrator to set up a high-­availability mail system with single server fault-­tolerance and load-­balancing abilities.
    • Active-­active mechanism ensures two-­way syncing of data between both servers to maximize the uptime for the mail system.
    • Load balancer smartly distributes incoming messages to ensure that the loadings on the two nodes are evenly balanced.
    • The specially designed algorithm allows you to search email content with a given keyword for an even more accurate result.
    • The spam-­filter has a much enhanced anti­-spam ability, especially for Chinese spams, by using implemented algorithm to analyze the meaning of the statement.
    • Customize spam filters by keywords for precise spam blocking.
    • The migration from the existing Mail Server to MailPlus Server is made seamless to let you continue using the previously hosted mail service.
    • Supports application backup in the Hyper Backup package.
    • Enhanced anti­-malware and anti-­virus protection by integrating Google Safe Browsing and third­-party database.
    • Message Content Protection (MCP) allows you to filter or block the mails that match MCP rules.
    • Penpal auto whitelisting mechanism ensures that the mails from the contacted senders will not be marked as spam.
    • You can forward mail logs to both the server not being used as load balancer in the mail cluster for log backup and the syslog server for centralized log management.
    • You can now disable full-­text search for selected accounts to utilize the server resources.
    • Usage analysis provides an efficient way to calculate email quantity of the selected users, allowing the administrators to easily monitor the mail traffic by accounts.
    • MailPlus Server will be available on the following models:
      1. 16­-series: RS18016xs+, RS2416+, RS2416RP+, DS716+, DS216+
      2. 15­-series: RC18015xs+, DS3615xs, DS2415+, DS1815+, DS1515+, RS815+, RS815RP+, DS415+
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs, RS2414+, RS2414RP+, RS814+, RS814RP+
      4. 13­-series: DS2413+, RS10613xs+, RS3413xs+, DS1813+, DS1513+, DS713+
      5. 12­-series: DS3612xs, RS3412xs, RS3412RPxs, RS2212+, RS2212RP+, DS1812+, DS1512+, RS812+, RS812RP+, DS412+, DS712+
      6. 11­-series: DS3611xs, DS2411+, RS3411xs, RS3411RPxs, RS2211+, RS2211RP+, DS1511+, DS411+II, DS411+
  5. MailPlus (Beta)
    • Please note that the Beta program will continue after DSM 6.0 official release.
    • MailPlus is a powerful webmail service that provides rich features. The beautifully designed user interface and functionality help you work intuitively on your everyday email with efficiency.
    • Organize your email with the physical mailboxes or assign multiple attributes onto the email by applying labels for an intuitive and convenient email management.
    • Send and receive mail to and from other mail servers with the customizable SMTP service and POP3 fetch function.
    • Find and manage your email efficiently with the smart search function.
    • Filters automatically moves your incoming or outgoing email to the appointed mailbox or applies labels.
    • Customize wallpaper and theme settings.
    • Enrich your email content with the built­-in stickers.
    • With Synology Web Clipper, you can easily save the conversation in MailPlus to Note Station for management.
    • Supports attaching files from DSM.
    • Supports undo operation for Delete/Move/Archive/Set read & unread/Apply & remove label actions.
    • Customize auto-­reply messages for different senders.
    • Supports browsing history.
    • You can now auto-­empty Spam/Trash mailboxes on logout.
    • Clip long email messages to shorten loading time.
    • List email addresses according to contact frequency when specifying the sender/recipient.
    • Group contacts will be displayed when specifying the sender/recipient in the mail composer.
    • Task progress will be displayed after setting up the filters.
    • Supports keyboard shortcuts to view and manage messages more efficiently.
    • Overall performance enhancement including improved email loading and deleting performance.
    • MailPlus will be available on the following models:
      1. 16­-series: RS18016xs+, RS2416+, RS2416RP+, DS716+, DS216+
      2. 15­-series: RC18015xs+, DS3615xs, DS2415+, DS1815+, DS1515+, RS815+, RS815RP+, DS415+
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs, RS2414+, RS2414RP+, RS814+, RS814RP+
      4. 13­-series: DS2413+, RS10613xs+, RS3413xs+, DS1813+, DS1513+, DS713+
      5. 12­-series: DS3612xs, RS3412xs, RS3412RPxs, RS2212+, RS2212RP+, DS1812+, DS1512+, RS812+, RS812RP+, DS412+, DS712+
      6. 11­-series: DS3611xs, DS2411+, RS3411xs, RS3411RPxs, RS2211+, RS2211RP+, DS1511+, DS411+II, DS411+
  6. SpreadSheet
    • Allows you to host your collaboration drive and work easily with others by sharing spreadsheets.
    • Customize access permissions for guests, DSM users and groups, and set read/write privileges for specific spreadsheets.
    • Multiple users can edit the same spreadsheet simultaneously and see the modifications in real time.
    • View the revision history and restore the spreadsheet to a previous version.
    • Manage your spreadsheets with multiple attributes by adding tags to individual spreadsheets and quickly find them later.
    • Supports import and export of other spreadsheet formats.
    • Supports data validation, conditional formatting, filter and spelling check.
    • Spreadsheet encryption is supported to protect confidential spreadsheets.
    • Supports application backup in the Hyper Backup package.
    • Range selection is supported in SpreadSheet functions.
    • Supports selecting multiple rows/columns/cells by pressing and holding the "Ctrl" key.
    • Over 300 formulas are supported.
    • SpreadSheet Function List is provided with instructions on frequently used functions and usage examples.
    • Allows you to insert images to spreadsheets.
    • You can now print your spreadsheets.
    • SpreadSheet will not be available on the following models due to the restriction of Node.js version:
      1. 13­-series: DS213, DS213air, DS413j, DS213+, DS413
      2. 12­-series: DS112, DS112+, DS112j, DS212, DS212+, DS212j, RS212, RS812
      3. 11­-series: DS111, DS211, DS211+, DS211j, DS411, DS411j, DS411slim, RS411
  7. Surveillance Station 7.2
    • Surveillance Station has been optimized for models based on Intel 64­-bit processors to improve general performance.
    • Added support for I/O modules from Advantech ADAM­-6050, ADAM-­6052, ADAM-­6250, ADAM-­6266 and AXIS P8221.
    • Added support for running Surveillance Station on both Virtual DSM and Docker DSM. (Please note that Surveillance Station running on Virtual DSM or Docker DSM does not include any default surveillance device licenses.)
    • Added support for 2­-step verification using one-­time password (OTP) for DSM 6.0 to provide extra security.
  8. PetaSpace
    • PetaSpace is an application that combines the capacity of multiple volumes into a larger volume group. With PetaSpace, data of a single shared folder can now be located across multiple volumes, thus allowing you to store, manage, and access the growing amount of data more efficiently and flexibly.
    • Available on the following models:
      1. 16­-series: RS18016xs+
      2. 15­-series: RC18015xs+, DS3615xs
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs
      4. 13­-series: RS3413xs+, RS10613xs+
      5. 12­-series: DS3612xs, RS3412xs, RS3412RPxs
      6. 11­-series: DS3611xs, RS3411xs, RS3411RPxs
  9. Cloud Station Server
    • Added support for setting user and group speed limit.
    • Integrated with DSM application privilege settings.
    • Offers Intelliversioning version rotation algorithm.
    • Run Cloud Station Server without enabling home service.
    • Enforce 2­-step verification to strengthen identity security.
    • Supports renaming shared folders when Cloud Station Server is running.
    • Supports symbolic links.
    • Supports files containing "/" characters on Mac.
    • Now allows you to select multiple files/folders for restoration in Version History.
    • Raised concurrent file transfer number to 10,000 on selected models (RS18016xs+, RC18015xs+, RS3614xs+, RS10613xs+, RS3614xs, and DS3615xs; memory expansion to 32GB required).
    • Optimized small file processing performance.
    • Optimized 1st-­time synchronization performance.
    • Optimized as a backup target.
  10. Cloud Station ShareSync
    • Configure upload­-only or download-­only tasks.
    • Customize conflict policies by each ShareSync device.
    • Enhanced host search algorithm used in QuickConnect connections.
    • Supports encrypted shared folders.
    • Now allows "surveillance" and "photo" shared folders to be synchronized with a shared folder under a different name.
    • Now advanced consistency check can be disabled.
    • Optimized memory usage.
  11. Cloud Station Drive
    • Synchronize any folders on your Synology NAS.
    • Configure download­-only tasks.
    • Customize conflict policies by each PC.
    • Integrated with DSM 2­-step verification.
    • Integrated with Windows VSS (Volume Shadow Copy Service).
    • Enhanced host search algorithm used in QuickConnect connections.
    • Enhanced user experience and graphic interface.
    • Now advanced consistency check can be disabled.
    • Added minimalist system tray icons to better suit the OS themes of modern computers.
    • Enhanced the installation GUI on Mac.
    • Optimized memory usage.
  12. Cloud Station Backup
    • Back up the data on your personal computers running Windows, OS X, Ubuntu and Fedora operating systems.
    • Retains up to 32 versions of every backed up file and supports file filtering. (Please refer to the software specifications for supported OS versions.)
  13. Cloud Sync
    • Synchronize a specified folder on the public cloud with a folder on Synology NAS.
    • Configure multiple sync tasks in a single connection.
    • Sync a folder to multiple public cloud destinations.
    • Choose never to remove the data on the destination.
    • Supports read-­only shared folders.
    • Supports encrypted shared folders.
    • You can now customize the number of files to be concurrently uploaded/downloaded.
    • You can now convert Google Docs to Microsoft Office or jpeg formats in download­-only tasks to keep an offline backup copy.
    • Last modified time of synced files will be updated to Dropbox.
    • Now advanced consistency check can be disabled.
    • Supports creating a new remote folder during task creation.
    • Supports application privilege settings by group and IP.
    • Added support for:
      1. Microsoft OneDrive for Business and Office 365
      2. Microsoft OneDrive’s new API
      3. HiDrive
      4. Amazon S3 Standard -­ Infrequent Access storage class
      5. Amazon S3 Seoul region
    • Reorganizes the order of public cloud services by device location.
    • Supports OpenStack keystone v3.
    • Now offers Windows and Linux decryption tools for data recovery.
    • Optimized memory usage.
    • Raised the minimum polling period to 10 seconds.
  14. Directory Server
    • The Provider­-Consumer architecture in Directory Server allows the account data to be continuously replicated from a "Provider" Synology NAS to one or more "Consumer" servers. This ensures that the connection between the clients and the server will not be affected even when the Provider server is unavailable.
    • Password strength policy can now be applied to user accounts for better security.
    • You can enforce regular and periodical password update to enhance security. In addition, password expiration reminders will automatically notify users to update their passwords via email or upon login.
  15. Video Station
    • Brand new visual design in contrasting black and red accentuates your video collections.
    • Offline transcoding can make you transcode and download video collections in advance. You can enjoy them even without available internet connection.
    • Use the new home page to browse all recently added videos in each library and the top banner in homepage will recommend you the best films.
    • On­screen buttons allow smoother and more intuitive operation.
    • Stream videos from Video Station to Chromecast with the Google Cast extension (available on Chrome Web Store).
    • Provided an option to disable metadata auto download for specific folder.
    • Provided more detailed information, such as FPS, sample frequency, and multiple audio tracks.
    • Added functions to edit video ratings and change the backdrop.
    • Customize library visibility according to your own preferences.
    • Subtitle size now can be adjusted to fit your preference.
  16. Hyper Backup
    • Back up folders, packages, and DSM configurations to a multi­-version repository and save backed up data in image formats to maximize storage efficiency while retaining up to 65,535 versions for retrieval.
    • Supports flexible version control:
      1. Regular or Smart Recycle rotation is supported.
      2. Version lock prevents a specific version from automatic rotation.
    • Supports a variety of destinations:
      1. Local shared folders and external storage devices.
      2. Shared folders and external storage devices on a remote server.
      3. Public cloud destinations including Amazon S3, S3­-compatible storage, Microsoft Azure (Global and China), HiDrive, hubiC, IBM SoftLayer, RackSpace, and other OpenStack Swift compatible servers.
    • Supports granular recovery:
      1. Use web-­based Backup Explorer to browse through backup versions and files.
      2. Allows single file restoration.
    • Supports portable backup repositories:
      1. Export the initial backup version to an external storage device and deliver the external storage device to the destination for data uploading.
      2. Reuse a backup repository by relinking.
    • Full­-fledged security features:
      1. Enable client-­side encryption to ensure data confidentiality at the backup destination.
      2. Supports transmission encryption.
      3. Supports backing up encrypted shared folders.
    • Supports Amazon S3 Standard -­ Infrequent Access storage class.
    • Supports backing up symbolic links.
    • Supports port forwarding from a customized port of a backup task to a Synology NAS or a rsync server.
    • Now you can compress your files before transmitting them to the backup target, saving the network bandwidth and storage consumption.
    • Now allows multiple restore/download/copy tasks to run concurrently in Hyper Backup Explorer.
    • With Hyper Backup installed, you can launch the Hyper Backup Explorer by clicking the backup target in File Station.
    • Upgrade and migration:
      1. The Backup & Restore ​package will be automatically migrated to Hyper Backup upon upgrading from DSM 6.0 Beta 1.
      2. The Backup & Replication ​package will be automatically migrated to Hyper Backup upon upgrading from DSM 5.2.
  17. Hyper Backup Vault
    • Hyper Backup Vault is a new package and will be automatically installed upon upgrading to DSM 6.0.
    • You can enable backup services to allow another Synology NAS to back up to your Synology NAS via Hyper Backup.
    • Provides an overview of the Hyper Backup targets backed up by other Synology NAS servers.
    • Provides the information of each backup target, such as path, space usage, last backup time, backup duration and backup logs.
    • With Hyper Backup Vault installed, you can launch the Hyper Backup Explorer by clicking the backup target in File Station.
  18. Hyper Backup Explorer​(for Windows and Linux)
    • Now you can use Hyper Backup Explorer to browse backup data right from your Windows and Linux computers.
  19. Note Station
    • Offline Note Station is now available in Chrome Web Store. You can create and edit notes or to-­do lists without Internet connection, and all updates will be synchronized to Note Station in DSM when the Internet is connected.
    • Use Synology Web Clipper to save selected content of MailPlus or Gmail to Note Station.
    • Convert tables into charts, including line charts, bar charts, and pie charts.
    • Choose a template for your presentation.
    • Click to expand images to their original size in presentation mode.
    • Apply heading formats to texts to switch slides in presentation mode.
    • Create Smart Notebooks according to different criteria. Existing and future notes that match the criteria will be automatically added to the Smart Notebook.
    • Insert the internal link of another note and open it directly via the hyperlink.
    • The search feature in Note Station now includes results based on the content of attached files of various formats, including PDF, Office, Open Office, and iWork file.
    • The attachments in PDF, word, excel, and powerpoint formats can be previewed in Note Station directly with the Document Viewer package.
    • You can add stars, remarks and subtasks to to-­do tasks.
    • You can share notes or notebooks with a group.
    • Supports exporting/importing to­-do tasks for backup.
    • Allows you to output to-­do tasks to a new note and customize its display options.
  20. PDF Viewer/Document Viewer

    • View various popular document formats on DSM, including Microsoft Office and Open Office files (Document Viewer only).
    • Brand-­new designed user interface with comprehensive tools including rotation, zoom­-in/out, search, and much more.
    • Securely share your confidential documents by disabling the download, select & copy, and print functions.
    • Outline mode helps you quickly find the desired section in the document.
    • Drag mode can be extremely useful when viewing large pictures in the document.
    • Attachments can be collected for quick browsing.
    • Document Viewer is available on the following models:
      1. 16­-series: RS18016xs+, RS2416+, RS2416RP+
      2. 15­-series: RC18015xs+, DS3615xs, DS2415+, DS1815+, DS1515+, RS815+, RS815RP+, DS415+
      3. 14­-series: RS3614xs+, RS3614xs, RS3614RPxs, RS2414+, RS2414RP+, RS814RP+, RS814+, RS10613xs+, RS3413xs+
      4. 13­-series: RS10613xs+, RS3413xs+, DS2413+, DS1813+, DS1513+, DS713+
      5. 12­-series: DS3612xs, RS3412RPxs, RS3412xs, RS2212RP+, RS2212+, DS1812+, DS1512+, RS812+, RS812RP+, DS712+, DS412+
      6. 11­-series: DS3611xs, RS3411xs, RS3411RPxs, DS2411+, RS2211RP+, RS2211+, DS1511+, DS411+II, DS411+
  21. Intrusion Prevention (Beta)

    • Intrusion Prevention guards your Synology NAS from network threats. With its rule database, malicious packets can be identified to prevent malicious parties from infecting and compromising your Synology NAS.
  22. Antivirus -­ McAfee

    • Upgraded ClamAV and McAfee scanning engine.
    • Fixed an issue where operations might fail when deleting or restoring a large amount of files from the quarantine.
    • Fixed an issue where DSM system files might be deleted due to false alarm.
  23. Antivirus -­ Essential
    • Upgraded ClamAV and McAfee scanning engine.
    • Fixed an issue where operations might fail when deleting or restoring a large amount of files from the quarantine.
    • Fixed an issue where DSM system files might be deleted due to false alarm.
  24. VPN Server
    • Enhanced transmission performance of PPTP/L2TP.
    • Minor bug fixes.
  25. Web Station
    • Each Virtual Host can be set with an individual setting including PHP version, server backend, document root and secure connections.
    • More PHP extensions are supported to increase the flexibility of your own web site.
  26. Media Server
    • Supports hardware transcoding on DS216play, DS716+, and DS216+.
    • Fixed an issue where video may not be sought when streaming videos from DS216play and DS716+.
    • Minor bug fixes.
  27. Logitech Media Server
    • Updated the stable version to 7.7.6.
  28. Audio Station
    • Provides year information in album list.
    • Provides folder path of playlist for better recognition.
    • Enhanced browsing performance.
    • Added support for multi­-genre, allowing you to classify music more flexibly.
    • Added an artist category in genre.
  29. Photo Station
    • Added support for watermark to help protect the copyright of your photos.
    • The plugin in WordPress, Joomla, and Drupal allows you to access Photo Station directly and add photos or albums to these three platforms.
    • Windows AD and LDAP users can use Personal Photo Station now.
    • Supports html script for embedding Photo Station to other websites.
    • Security enhancement with XSS attack prevention.
    • Extend file size limitation of uploading and playing videos from 2GB to 32GB for 64 bits models.
    • Added a feature to prevent photos from being embedded via HTML iframe.
    • Supports migration flow to export Photo Station blog and import to WordPress.
    • Adjusted re­-order flow and new method to create a new album on photo wall.
    • Shows photo shooting time and geolocation information on lightbox as well as slideshow mode.
  30. Docker
    • Upgraded to Docker 1.9.
    • Supports Docker Compose.
  31. Download Station
    • Download files from more file hosting sites.
    • Added support for more premium accounts.
    • Added support for downloading tasks that require CAPTCHA passwords.
    • Personal notification is supported so every user can set their personal email to receive notifications.
    • File hosting plugin can be updated automatically.
    • Degraded NZB files can be repaired with .par2 files.
  32. Storage Analyzer
    • Supports the application backup in the Hyper Backup package.
  33. CardDAV
    • You can now edit contact information in DSM.
    • You can quickly build your contact list by importing data.
    • Supports exporting contact information to be used in other software.
  34. Java 7/8
    • Java derives much of its syntax from C and C++ but has a simpler object model and fewer low-­level facilities than either.
    • Java Manager is replaced by the new Java package for a more convenient installation procedure.
    • You may enjoy the built­-in Java or manually install Java from Oracle for enhanced compatibility.

Known Issues & Limitations

  1. For locally modified files in a read­-only sync folder, the status will always be "syncing" in DS cloud.
  2. Re-­enabling indexing services previously set will be required when you upgrading DSM 6.0.
  3. Upgrade to DSM 6.0 will trigger media indexing for Audio Station browsing enhancement.
  4. Because of structure change, some notifications that occurred before the upgrade could abnormally displayed. All notifications generated after upgrading to DSM 6.0 will be shown normally.
  5. MailPlus and MailPlus Server:
    • Initial retrieval of mail using the POP3 fetch function may take longer than usual.
    • MailPlus Server is required to be configured before running MailPlus.
    • MailPlus is required to be installed on both Synology NAS devices to ensure stability when switching load balancing services from one server to the other for MailPlus Server.
    • Both Synology NAS devices must have identical MailPlus application portal and privilege settings to ensure stability when switching load balancing services from one server to the other for MailPlus Server.
    • To upgrade the MailPlus Server in active­-active mode from Beta 1/Beta 2 version to the official version, it is required to remove the cluster mechanism first and upgrade two nodes separately. After the upgrade, set up the active-­active cluster with two nodes again and the data will be synced automatically. Such initiative will not be required after DSM 6.0.
  6. The function to customize library visibility will not be applied to DS video in the following mobile platforms: iOS, Windows Phone, Roku TV, and Samsung TV.
  7. After converting the permission type to ACL, the settings in Photo Station and File Station may still be inconsistent. For better user experience, the shared folder "photo" will be converted automatically back to Linux mode if you have done the ACL conversion in DSM 6.0 RC.

(2016/02/19)

Fixed Issues

  1. Updated Firewall filter policy to fix a security vulnerability caused by stack-based buffer overflow (CVE-2015-7547). This fix may impact read/write performance on the following models by no more than 15%, for which Synology is working on an enhancement in the future release.
    • 16-series: DS216se
    • 15-series: DS115j
    • 14-series: EDS14, DS114, DS214se, RS214, DS414slim
    • 13-series: DS213j, DS213air, DS213, DS413j
    • 12-series: DS112, DS112+, DS112j, DS212, DS212j, DS212+, RS212, RS812
    • 11-series: DS111, DS211, DS211+, DS211j, DS411, DS411slim, DS411j, RS411
    • 10-series: DS110j, DS210j, DS410j

(2016/01/22)

Fixed Issues

  1. Fixed two security vulnerabilities of FFmpeg modules (CVE-2016-1897 and CVE-2016-1898).
  2. Fixed a security vulnerability related to Linux Kernel (CVE-2016-0728).
  3. Upgraded OpenSSL to 1.0.1q to address multiple vulnerabilities (CVE-2015-3194, CVE-2015-3195 and CVE-2015-3196).
  4. Fixed two security vulnerabilities of OpenSSH module (CVE-2016-0777 and CVE-2016-0778).
  5. Improved algorithm to enhance the security level for setting up port forwarding in DSM.
  6. Fixed two security vulnerabilities to prevent cross-site scripting (XSS) attacks.
  7. Fixed a security vulnerability related to GnuTLS (CVE-2015-7575).
  8. To enhance the security level, auto block will be enabled after this update.
  9. Enhanced network stability when port forwarding is configured.
  10. Upgraded PHP to 5.5.31.

(2015/11/17)

Fixed Issues

  1. To enhance the security level, Synology's default administrator account "admin" with the blank password will no longer be allowed and will be disabled after this update. It is also highly recommended that you increase the password strength of all accounts belonging to the administrators group.
  2. Enforced a minimal password length of six characters for the default admin account.
  3. Improved general stability when numerous application privilege rules are applied to individual users/groups.

(2015/11/13)

What's New

  1. This update includes all bug fixes as well as security fixes in the previously released critical updates since DSM 5.2-5592.

Fixed Issues

  1. Improved stability of FTP connections.
  2. Improved stability when copying large files on DS216play.
  3. Improved general stability and security fixes of NTP service (CVE-2015-7871).
  4. Supports Data Scrubbing for iSCSI LUN (Block-Level) in Storage Manager.
  5. Improved the stability of encrypted backup in models with ARM processors.
  6. Improved general stability of Btrfs file system.
  7. Increased the connection limit for Log Receiving in Log Center.
  8. Upgraded PHP to 5.5.30 to address multiple vulnerabilities (CVE-2015-5589, CVE-2015-5590, CVE-2015-6834, CVE-2015-6835, CVE-2015-6836, CVE-2015-6837, CVE-2015-6838, and CVE-2015-3152).
  9. Fixed an issue where a DSM critical patch could not be manually uploaded when the system was in a Hybrid HA cluster.
  10. Minor bug fixes.

(2015/09/07)

Fixed Issues

  1. Restored the mandatory file (/usr/syno/bin/zip) that has been removed due to Antivirus Essential's false-positive detection.
  2. Upgraded Apache HTTP Server to 2.2.31 to address one security vulnerability (CVE-2015-3183).
  3. Upgraded PHP to 5.5.28 to address two security vulnerabilities (CVE-2015-5589 and CVE-2015-5590).
  4. Fixed two security vulnerabilities to prevent cross-site scripting (XSS) attacks.
  5. Fixed a security vulnerability of PCRE library (ASA-201508-11).
  6. Fixed an issue where DSM cannot be updated after system recovery on certain models (DS2415+, DS1815+, DS1515+, RS815RP+, RS815+, DS415+).

(2015/08/20)

Fixed Issues

  1. Optimized fan settings for DS715 and DS215+.
  2. Enhanced compatibility with hard drives.
  3. Improved the compatibility with UPS devices.
  4. Fixed an issue where the NTP (Network Time Protocol) service became temporarily unavailable after manual calibration.
  5. Fixed an issue where uploading files could fail with non-admin accounts on EDS14.

(2015/07/30)

Fixed Issues

  1. Fixed an issue where DS1515 would be unable to shut down properly.
  2. Enhanced RAID reliability when repairing volumes from degraded state.
  3. Improved the stability of LUN backup.
  4. Improved memory usage for Btrfs file system.
  5. Improved the compatibility with UPS devices.
  6. Improved the stability when repairing the passive server of a high-availability cluster.

(2015/07/15)

Fixed Issues

  1. Fixed an issue where applied settings could not be correctly displayed when changes were made at Group > Applications.
  2. Upgraded OpenSSL to 1.0.1p to address a security vulnerability (CVE-2015-1793).

(2015/07/01)

What's New

  1. This update includes all bug fixes as well as security fixes in the previously released critical updates since DSM 5.2-5565.

Fixed Issues

  1. Improved the stability of Synology High Availability system when excessive numbers of volumes are created on passive servers.
  2. Improved the compatibility of network printers.
  3. Upgraded Samba to 4.1.18 for issue fixes and stability enhancements.
  4. Improved the stability when expanding volumes on RAID 5 or 6.
  5. Improved the performance of Synology High Availability with SSD cache enabled.
  6. Improved the USB storage compatibility on DS215j.
  7. Upgraded PHP to 5.5.26 to address multiple security vulnerabilities (CVE-2015-3414, CVE-2015-3415, CVE-2015-3416, CVE-2015-2325, CVE-2015-2326, and CVE-2015-4598).
  8. Upgraded OpenSSL to 1.0.1o to address multiple security vulnerabilities (CVE-2015-4000, CVE-2015-1788, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791, and CVE-2015-1792).
  9. Security enhancements on Personal Web Station.
  10. Fixed a security vulnerability to prevent cross-site scripting (XSS) attacks.
  11. Fixed an issue where system would reboot while disabling a connected iSCSI target with the Multiple Connection Session setting enabled.
  12. Fixed an issue where High Availability Manager would fail to switch over after repairing read-write caches.
  13. Fixed multiple issues with UPS settings.
  14. Fixed multiple issues with Port Forwarding settings.
  15. Minor bug fixes.

(2015/06/09)

Important Information

  1. A thorough investigation has been done, and it is confirmed that DSM and its related packages are not impacted by the LogJam vulnerability because of the way Synology implements OpenSSL in our system.

Fixed Issues

  1. Improved the stability of SHR expansion.
  2. Improved the stability of SMB transfer when the system is being accessed by an excessive number of clients.
  3. Fixed multiple kernel vulnerabilities (CVE-2014-3122, CVE-2014-3153, CVE-2014-0196, and CVE-2014-4699).
  4. Fixed an issue where CPU usage could remain high when widget is enabled.
  5. Fixed an issue where LDAP users could fail to log in to DSM.
  6. Fixed an issue where files could not be downloaded via Windows' terminal.
  7. Fixed an issue where system cannot enter hibernation.
  8. Fixed an issue where some folders with non-English names would become inaccessible via SMB.
  9. Fixed an issue where volumes/iSCSI LUN cannot be displayed after the Synology High Availability system resumes from safe mode with UPS connected.

(2015/05/21)

Fixed Issues

  1. Fixed an issue where users could fail to join domain when the domain admin account contains specific characters.
  2. Improved the compatibility with USB devices.
  3. Fixed a security vulnerability to prevent cross-site scripting attacks (XSS).
  4. Upgraded PHP to 5.5.25 to address multiple security vulnerabilities (CVE-2006-7243, CVE-2015-4021, CVE-2015-4022, CVE-2015-4024, CVE-2015-4025, CVE-2015-4026).
  5. Improved the compatibility with 3rd party DTV applications.
  6. Fixed an issue where SSD cache volume information may not be displayed correctly in Resource Monitor.
  7. Fixed an issue where users with guest accounts would be unable to create new files or folders via SMB protocol.

(2015/05/19)

What's New

  1. This update includes all bug fixes as well as security fixes in the previously released critical updates since DSM 5.1-5022.

Fixed Issues

  1. Fixed an issue where some services could not function normally after applying or removing Link Aggregation settings when the system also serves as a DHCP server.
  2. Upgraded ppp to 2.4.7.
  3. Fixed an issue where some information in the log in Log Center could not display correctly.
  4. Fixed a vulnerability related to GnuTLS (CVE-2015-0294).
  5. Fixed an issue where some packages would be disabled after DSM update. This fix will take effect in the next DSM update.
  6. Enhanced stability when creating a High Availability cluster.
  7. Upgraded Apache to 2.2.29 to address multiple vulnerabilities (CVE-2013-5704, CVE-2014-0118, CVE-2014-0226 and CVE-2014-0231).
  8. Upgraded PHP to 5.5.2 to address two vulnerabilities (CVE-2015-0235 and CVE-2015-0273).
  9. Minor bug fixes.

(2015/05/12)

Compatibility and Installation

  1. DSM 5.2 can only be installed on Synology products running DSM 5.0 or above. Before starting, please log in to DSM and go to DSM Update to install the latest DSM.
  2. Some features have specific hardware requirements and are only available on certain Synology NAS products.

Important Notes

  1. DSM 5.2 is the last supported major DSM version for all 10-series models.
  2. An issue of data consistency caused by SSD TRIM is not resolved yet; as a result, SSD TRIM is currently disabled in DSM 5.2.
  3. DSM 5.2 is the last DSM version to support Time Backup as an add-on application in Package Center. Time Backup features will be fully merged into the built-in Backup package in future releases. Existing Time Backup users will not be affected.
  4. Sharing via Facebook and Google+ will no longer be supported starting from DSM 5.2.

What’s New in DSM 5.2

  1. Single Sign-On

    • You can register multiple DSM and access them using one set of credentials. After initial login, linked DSM accounts will automatically log in to avoid credential re-authentication.
  2. Windows File Sharing

    • Added SMB3 and end-to end data encryption support.
  3. Backup and Replication

    • Added support for file-level restoration with File Version Browser in multi-version backup tasks.
    • You can set up backup rotation to recycle old backup versions automatically in multi-version backup tasks.
    • Added data transfer encryption support for multi-version backup.
    • Added support for Amazon S3 China Region as a backup destination.
  4. iSCSI LUN Snapshots

    • You can take iSCSI snapshots more frequently, up to every five minutes.
    • You can set the snapshot retention policy to retain a specific number of versions for hourly, daily, weekly, monthly, and yearly snapshots.
  5. Link Aggregation

    • Added support for two new modes when creating a bond interface: Adaptive Load Balancing and Balance XOR.
  6. SSD Cache

    • SSD cache now has a smaller memory footprint, consuming 90% less memory than DSM 5.1 for newly created SSD caches.
  7. File Station

    • You can manage and transfer files to popular public cloud services such as Dropbox, Box, Google Drive, and OneDrive.
    • The built-in photo viewer now supports full-screen mode.
    • You can drag and drop files between two browsers.
    • You can set the number of times a shared link can be accessed.
    • Added playlist support for the built-in audio player.
    • You can use the built-in mail client to send shared links.
  8. QuickConnect

    • Enhanced stability.
    • DSM will automatically add port forwarding rules required by QuickConnect services on your compatible UPnP router, saving your time on network configuration.
  9. DSM log-in page

    • You can add welcome messages to deliver information to users before they log in to the system.
  10. DSM Help

    • You can reach online resources such as FAQ and compatibility lists in DSM Help now.
    • One more tutorial about how to back up data from your computer is added in the section of Get started with DSM.
  11. Misc

    • You can customize the security level of SSH connections by selecting which encryption algorithm(s) to use.
    • Added more flexible port forwarding rules, including assigning random port numbers, and customized port settings.
    • You can set usage quotas for different groups. The group usage quota is automatically applied when a user is added to the group.

What’s New in Packages

  1. Single Sign-On Package

    • Based on the OAuth2 standard, SSO Server package turns Synology NAS into a SSO server that allows developers to register their web applications to the server and utilize the single sign-on feature. This increases daily productivity by saving time spent on re-authentication.
  2. Docker

    • Docker is a lightweight virtualization application that gives you the ability to run thousands of containers created by developers from all over the world on DSM. The hugely popular built-in image repository, Docker Hub, allows you to find shared applications from other talented developers.
    • A step-by-step tutorial is introduced to guide you through the basic container creation.
  3. Note Station

    • Added to-do list feature. You can add tasks to notes or add them independently to the to-do list.
    • Manage tasks by specifying a priority, due date, and reminder.
    • Synology Web Clipper is now available on the Chrome Web Store. You can clip web content directly to Note Station.
    • Export notebooks to a nsx file for backup or for importing to another Synology NAS.
    • Export individual notes as HTML files so that users without Note Station can read them.
    • You can archive seldomly used notebooks so that they will not be displayed in the notebook section or in search results.
    • Enhanced Note Station file structure. A three-tier structure (Shelf, Notebook, and Note) provides greater flexibility for organizing Note Station.
    • You can display notes in presentation mode.
    • You can create new notes in a joined notebook if you were given modify permissions.
    • You can share notes via the built-in DSM email application.
    • You can change the default notebook.
    • You can adjust the default note font size.
    • Import notes from YinXiangBiJi.
    • Better note version conflict handling.
    • Todo badge number on Desktop icon.
  4. Cloud Station

    • Added support for low-latency smart polling.
    • You can assign different historic version numbers for each shared folder.
    • Enhanced general performance.
    • Added support for native renaming operation.
    • Administrators can enable/disable Cloud Station directly from Package Center.
    • Added support for File Station Recycle Bin.
    • Files greater than 10GB can be synced.
    • Updated PC client for Windows, Mac and Linux:

      1. Added a quick setup wizard.
      2. Added a search feature to automatically find all Synology NAS in the local area network.
      3. Added a system tray menu in graphic user interface.
      4. You can right-click to stop or resume syncing for specific subfolders.
      5. You can right-click a synced folder to generate a folder sharing link.
      6. You can right-click any file on your computer to copy it to the Cloud Station folder.
      7. Added a client-side sync log.
  5. Cloud Sync

    • Added unidirectional sync from NAS to public cloud and from public cloud to NAS.
    • You can encrypt and compress data sent to public cloud storage.
    • Added support for Amazon S3 compatible public cloud service providers.
    • Added support for WebDAV public cloud service providers.
    • Added support for Amazon Cloud Drive.
    • Added support for Megafon Disk.
    • Added support for native renaming operation (support level differs with public cloud storage API).
    • You can customize both task name and polling period.
    • You can sync files as large as 10GB with OneDrive.
    • Added support for File Station Recycle Bin.
  6. Mail Server

    • Added attachment filter to block specific file extensions.
    • You can receive real-time notifications regarding daily quota status.
    • Added support for SPF/DKIM and DMARC sender validation.
    • Added customized auto-reply and content setting features.
    • Daily quotas can be set by user.
  7. Glacier Backup

    • Enhanced to handle Amazon server-side speed limit.
    • Enhanced general performance.
  8. Video Station

    • You can use hotkeys to fast forward, rewind, and adjust the volume during video playback.
    • Subtitle files can now be located anywhere on your Synology NAS and no longer need to match the filename of your video files. Simply select them using the built-in chooser in Video Station during playback.
    • More code-pages supported to correctly recognize subtitles in different languages.
    • You can set a timing offset to sync subtitles with video playback.
    • You can customize video posters by selecting an image from your Synology NAS.
    • Use the shortcut on the library to quickly add video folders.
    • You can delete videos directly from Video Station
    • Supported right-click context menu to access useful functions more quickly.
  9. Audio Station

    • Added support for indexing CUE sheet files to display all indexed audio tracks, and the song information of an undivided album file for management (requires DSM 5.2).
    • Added support of transcoding FLAC/APE, ALAC/AAC, OGG, AIFF formats for DLNA players.
  10. Photo Station

    • A brand-new design that gives Photo Station mobile a refreshed look-and-feel. The update includes two major improvements: watching videos and linking directly to details page of a photo.
    • You can select specific albums when creating a smart album.
    • More EXIF information is displayed in the lightbox page, and can also be added as conditions when creating smart albums.
  11. Download Station

    • Previews for photos and videos are available for torrent downloads.
    • Added support for HTTP downloads with multiple connections.
  12. Media Server

    • Resumed video transcoding support (This feature is supported by select models. Please go here for detailed information).
  13. Redmine

    • Redmine is a flexible project management web application. It has numerous features and can be run on Synology NAS via Docker.
  14. GitLab

    • GitLab is a web-based Git repository manager with wiki and issue tracking features. It has numerous features and can be run on Synology NAS via Docker.
  15. LXQt

    • LXQt is a desktop utility built on QT with partial Razor-qt and LXDE components. It comes with a basic graphical user interface which gives users the ability to leverage certain operating system features, such as web browsing. It has numerous features and can be run on Synology NAS via Docker.
  16. SpreeCommerce

    • SpreeCommerce is a full-featured storefront tool built on common standards so you do not have to compromise speed to market, efficiency, or innovation. You can also easily leverage the advantages of modular design to configure, supplement, or replace the functionalities you need. It has numerous features and can be run on Synology NAS via Docker.
  17. Discource

    • Discourse is a forum application software with a focus on user experience by introducing infinite scrolling, live updates, drag and drop attachments and more. It has numerous features and can be run on Synology NAS via Docker.
  18. MantisBT

    • MantisBT is an open source, web-based issue tracker and project management tool with a focus on simplicity and flexibility. Users are able to get started quickly and manage their projects effectively, making collaboration with team members and clients easy and professional.
  19. LimeSurvey

    • LimeSurvey is a powerful survey creation tool that help you easily create and publish intuitive and question-and-answer surveys and collect responses without the requirement of technical background. LimeSurvey also provides graphical analysis of the result for you to quickly find the information from the statistics. You also have the full control of whom to access the survey, either publish the survey publicly or limit only the users with the "once-only" token.
  20. CMS

    • Enhanced general performance.
    • Bug fixes and usability enhancements.

(2015/04/23)

Fixed Issues

  1. Fixed a vulnerability that could allow unauthorized access to the shared folders via SMB protocol.

(2015/03/21)

Fixed Issues

  1. Upgraded OpenSSL to 1.0.1m to address multiple vulnerabilities (CVE-2015-0204, CVE-2015-0286, CVE-2015-0287, CVE-2015-0289, CVE-2015-0292, CVE-2015-0293, CVE-2015-0209, and CVE-2015-0288).

(2015/03/02)

Fixed Issues

  1. Fixed a security vulnerability related to SAMBA (CVE-2015-0240).

(2015/02/05)

Fixed Issues

  1. Implemented fixes related to the GHOST vulnerability (CVE-2015-0235).
  2. Upgraded PHP to 5.5.21 to address multiple vulnerabilities (CVE-2015-0231, CVE-2014-9427, and CVE-2015-0232).

(2015/01/22)

Fixed Issues

  1. Improved the stability of SHR expansion.
  2. Improved stability of iSCSI transfer.
  3. Upgraded OpenSSL to 1.0.1k to address multiple vulnerabilities (CVE-2014-3571, CVE-2015-0206, CVE-2014-3569, CVE-2014-3572, CVE-2015-0204, CVE-2015-0205, CVE-2014-8275, and CVE-2014-3570).
  4. Upgraded PHP to 5.5.20 to address one vulnerability (CVE-2014-8142).

(2015/01/12)

What's New

  1. This update includes all bug fixes as well as security fixes in the previously released critical updates since DSM 5.1-5021.

Fixed Issues

  1. Improved hard-drive compatibility for DS215j.
  2. Improved efficiency of backup tasks.
  3. Fixed an issue where DSM updates could fail to install on systems with High Availability enabled.

(2014/12/27)

Fixed Issues

  1. Fixed an issue where the failure of photo indexing may occur when usernames contain special characters.
  2. Upgraded BIOS to enhance SATA compatibility on RS3614xs and RS3614RPxs models.
  3. Enhanced stability on file-copying to USB drives.
  4. Upgraded NTP to version 4.2.8 to address multiple vulnerabilities (CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, and CVE-2014-9296).
  5. Enhanced the stability of QuickConnect connection to Surveillance Station.

(2014/12/17)

What's New

  1. This update includes all bug fixes as well as security fixes in the previously released critical updates since DSM 5.1-5004.

Fixed Issues

  1. Enhanced data security by disabling "Mount automatically on start-up" after restoring an encrypted shared folder.
  2. Fixed a vulnerability that allows senders to access unintended destinations during a backup job.
  3. Enhanced stability on Amazon S3 on large file backup.
  4. Upgraded OpenVPN to 2.3.6 to address a security vulnerability.
  5. Fixed a vulnerability that allows local users to initiate a denial of service by queuing the maximum number of file descriptors (CVE-2014-7824).
  6. Upgraded PHP to 5.5.19 to address multiple vulnerabilities (CVE-2014-3669, CVE-2014-3670, CVE-2014-3668, and CVE-2014-3710).
  7. Improved DTV dongle compatibility.
  8. Improved file-copying stability on DS2015xs.
  9. Fixed an issue where DS213+ and DS413 could power up unexpectedly when backup tasks are scheduled.
  10. Minor bug fixes.

(2014/11/29)

Fixed Issues

  1. Fixed an issue that could cause a false alarm in Security Advisor after upgrading to DSM 5.1-5004 Update 1.
  2. Fixed an issue where Firewall rules did not apply correctly.
  3. Fixed a security issue that could allow remote attackers to cause a denial of service via a crafted ECC certificate or certificate signing requests (CVE-2014-8564).
  4. Enhanced HA stability on system updates.
  5. Fixed an issue where DS213+ and DS413 could fail to execute scheduled tasks after entering system hibernation.
  6. Fixed the send-mail function in PHP.
  7. Fixed an issue where packages failed to start or users were unable to install packages on entry models.
  8. Fixed an issue where CGI cannot be executed in Web Station.
  9. Fixed an issue where DSM mobile was not correctly displayed on Chrome v39 on mobile devices.
  10. Fixed an issue where installation of digitally-signed packages could fail on EDS14.
  11. Improved QuickConnect mechanism on complex network environment.
  12. Fixed an issue where scheduled power-off function could fail to execute when DSM Auto Update was enabled.
  13. Fixed an issue where false warning could display in System Health on Play-series.
  14. Fixed "Customize PHP open_basedir" function to accept directories that have not been created.
  15. Enhanced security on SSH/Telnet connections.
  16. Fixed an issue where EDS14 could fail to apply updates.

(2014/11/12)

Fixed Issues

  1. Enhanced SSL 3.0 handling mechanism for POODLE vulnerability.
  2. Fixed an issue where the passive server, after several abnormal shut-downs, could fail to switch over when the active server is down.
  3. Fixed an issue where systems with High Availability enabled could fail to start services after rebooting.
  4. Fixed an issue where volumes could crash with SSD read/write cache enabled during volume expansion.
  5. Fixed an issue where deletion of an advanced file LUN could not release allocated space.
  6. Fixed a security vulnerability regarding Wget that could allow remote FTP servers to write arbitrary files, and consequently execute arbitrary code (CVE-2014-4877).
  7. Improved compatibility with Zoneedit DDNS provider to handle unexpected Javascript execution.
  8. Implemented fixes to address multiple OpenSSL vulnerabilities (CVE-2014-3513, CVE-2014-3566, CVE-2014-3567, CVE-2014-3568).
  9. Improved compatibility with USB drives on certain high-end models.

(2014/11/07)

Compatibility and Installation

  1. DSM 5.1 can only be installed on Synology products running DSM 5.0. Before starting, please log in to DSM and go to Control Panel > Update & Restore > DSM Update to install the latest DSM.
  2. Some features have specific hardware requirements and therefore are only available on certain Synology NAS products.
  3. Weather information in the DSM login page and CIFS Scale-Out Cluster will neither be available nor supported in DSM 5.1.

What's New in DSM 5.1

  1. Security Advisor
    • Security Advisor is a DSM security application that scans your DSM settings and Synology NAS and recommends changes that help keep your Synology NAS safe.
  2. AppArmor
    • Application Armor kernel security module is now enabled in DSM. Each system program is associated with a security profile that restricts certain functions, protecting against unknown threats from malicious software.
  3. Service by Interface
    • You can set the network interface that each service will use in Control Panel > Info Center > Service.
  4. App Privileges
    • You can assign application privileges for local and domain groups.
    • You can define application privileges according to IP address.
  5. DSM Auto Update
    • You can create a schedule to install DSM updates automatically to keep your Synology NAS up-to-date.
  6. Package Center
    • Trust level protects you from installing altered packages or packages from unknown sources on your Synology NAS.
  7. 2-step verification enforcement
    • 2-step verification can be enforced on admin groups or all users.
  8. Backup and Replication
    • You can now back up data from any Synology NAS (A) to a volume on another Synology NAS (B) using its non-admin account (on B) with network backup destination privileges.
    • Added backup destination support for Azure, SFR S3, and hicloud S3.
    • The following packages can now be backed up via the built-in Backup & Replication feature: VPN Server, DNS Server, Mail Server, Proxy Server, RADIUS Server, Directory Server, and Asterisk.
  9. LUN Backup

    • iSCSI LUN network backup performance has been enhanced by 169%, as illustrated in the below comparison:
    LUN Backup DSM 5.0 DSM 5.1 Improvement
    Local Backup 445 MB/s 863 MB/s 94%
    Network Backup 129 MB/s 348 MB/s 169%
  10. iSCSI LUN Snapshots

    • You can set a schedule for creating iSCSI LUN application-consistent snapshots to continuously protect your LUN.
    • You can lock a specific snapshot to prevent it from being removed by retention policy.
  11. iSCSI LUN Allocation Unit Size
    • You can configure the iSCSI LUN using advanced features to optimize the performance.
  12. VMware VAAI NAS
    • Added NFS support for two primitives: Full File Clone and Reserve Space.
    • Please note that you should install the Synology NFS Plug-in for VMware VAAI and read the instructions in README.txt to make sure installation is successful.
  13. UNMAP Support for Windows Server 2012
    • Added support for Storage Space Reclamation via UNMAP command, which can be triggered by file deletion or a file system level trim.
  14. SSD Cache
    • You can now create a read-only cache with one SSD.
    • SSD read hit rate is displayed in real-time as well as daily, weekly, and monthly intervals.
    • SSD Cache Advisor helps you determine the required SSD cache size.
  15. High Availability Manager
    • Added Read/Write SSD Cache support for HA cluster.
    • High Availability is now built-in for DSM 5.1.
  16. File Station
    • You can manage and transfer files to another WebDAV/FTP server.
    • Added support for FTP, SFTP, WebDAV, and WebDAV over HTTPS.
    • You can share files as attachments using a simple email client.
    • You can use the smart drag and drop feature to apply different actions to each copy or move file conflict.
    • You can share files to DSM users and they will receive notifications.
    • You can now play music using the built-in audio player.
  17. IPv6
    • Added IPv6 support for VPN client, Log Center, QuickConnect and DDNS.
  18. Static Route and Multiple Gateways
    • You can set the default gateway on each network interface.
    • You can define static routes based on your network environment.
    • You can use the IP Routing Table to view how network packets will be routed.
  19. Storage Analyzer
    • Storage Analyzer allows you to quickly view overall usage trends of your Synology NAS, create and manage tasks to analyze storage spaces, and generate detailed reports on volume usage.
    • You can select report types, create a schedule to generate periodic storage reports, and easily view previous reports that match the specified time or criteria.
  20. Storage Manager (for RS10613xs+, RS3413xs+, RS3614xs, RS3614RPxs, RS3614xs+ only)
    • You can now create volumes up to 200 TB large.
    • You can create RAID groups and RAID arrays. A RAID group for Multiple Volumes or iSCSI LUNs (Block-Level) that use RAID 5 or RAID 6 may contain multiple RAID arrays.
    • You can no longer create or expand Synology Hybrid RAID arrays, however existing volumes can still be used.
  21. Log Center
    • Added IPv6 support for log sending and receiving.
    • Added supports for customized log formats.
  22. MyDS Center
    • Added a wizard to consolidate multiple MyDS accounts into one account for easy management and convenience. If you have multiple MyDS accounts, complete this wizard so you can continue enjoying our MyDS Center services.
    • You can easily monitor MyDS related services (DDNS/QuickConnect) at a glance.
    • You can modify account information and subscriptions directly in DSM.
  23. Text Editor
    • You can now use hotkeys to quickly perform common actions.
    • You can convert between Traditional and Simplified Chinese text.
  24. DSM Desktop
    • Push notifications can now be sent via Chrome and Safari.
    • You can change the main menu style to drop-down.
    • You can adjust the size of Desktop icons to be smaller.
  25. Misc
    • You can set global firewall rules for all network interfaces.
    • You can set default permissions for external drives.
    • You can define each FTP user’s root folder to be a folder other than their home folder.
    • You can filter Domain Users and Groups by Organizational Unit.
    • A command-line-based FTP client is built-in for automated tasks.
    • You can now customize the SSH port.
    • Python core is now built-in.

What's New in Packages

  1. Note Station
    • Note Station helps you fully enjoy writing, viewing, managing, and sharing content-rich notes. It is very easy to create content with rich text editing, media embedding, attachments, and much more. Manage your notes by using tags and grouping notes into Notebooks. You can also import your notebooks and notes from Evernote to centralize all your notes in one convenient place. When you are ready, Note Station makes sharing your content via social networking platforms simple and quick. Create, share, and enjoy!
  2. Cloud Station
    • You can sync data according to Unix or Windows ACL privileges.
    • Added support for syncing encrypted shared folders.
    • Administrators can control the file type and file size specific users can sync.
    • Offers in-app log.
    • You can disable versioning to reduce storage consumption.
    • Cloud Station Client offers MSI, DEB, and RPM installers for Windows and Linux computers.
    • Cloud Station Client for Mac now supports retina icons.
    • Cloud Station Client for DiskStation can now selectively sync data.
  3. Cloud Sync
    • Added support for Microsoft OneDrive, Box, and hubiC.
    • You can selectively sync folders.
    • You can filter specific file types, file sizes, and files.
    • Offers bandwidth control.
    • Offers syncing history.
  4. Proxy Server
    • Proxy Server provides caching and access control for HTTP-based services. With caching, you can reserve caching storage space on your Synology NAS to store HTTP-based content from the web. You can also use Proxy Server to deny users from accessing restricted web services, keeping your network safe and productive.
  5. VPN Server
    • Added IPv6 support for OpenVPN (Requires DSM 5.1).
  6. Glacier Backup
    • You can restore data at the file-level instead of whole archives through the new Explore feature.
    • You can now remove a specific file or folder from Amazon Glacier.
    • Added support for file-deduplication within the same backup task, saving your Amazon storage space tremendously.
  7. Video Station
    • You can use the new home page to view recently added, released, and watched videos at a glance.
    • In the homepage of TV Recording, streaming online programs and setting recording tasks is now easier and quicker.
    • You can use the real-time filter to find your favorite videos quickly, and save the result as a smart collection.
    • You can view the display in three different modes – Poster, Tile, and List View.
    • You can use the “Watched” status on each video to keep track of videos you have already watched.
    • Retrieve online subtitles when starting to play a movie.
    • You can share a video collection via a sharing link, allowing anyone with the link to play the videos without having a DSM account. The page is optimized for display on desktop and mobile browsers.
    • Video information can be saved as files for data backup.
  8. Audio Station
    • You can rate songs in your library and categorize music by rating.
    • You can import rating information from iTunes.
    • Search results will be displayed according to artist, album, and song title.
    • You can share your favorite playlist via a sharing link that is optimized for display on computer and mobile browsers.
    • Added gapless playback support for web streaming (original files only, not including transcoded stream).
    • Added supports for DSD format playback (select models only).
    • Added support for multiple Bluetooth speakers playback.
    • You can individually adjust the volume of multiple players.
  9. Photo Station
    • The timeline mode now displays more photos.
    • Various transition effects are offered in Slideshow.
    • You can set your favorite music to play in the background during a slideshow.
    • You can share photos in a virtual collection that is optimized for display on computer and mobile browsers.
    • Added support for sorting photos from oldest to latest in Timeline view.
  10. Download Station
    • Redesigned visual style.
    • Added file hosting support for mega.co.nz.
    • You can save up to five different BitTorrent search results.
  11. Mail Server
    • Mail Server can scan messages for potentially dangerous content.
    • You can send daily reports about the status of Mail Server. The report will include summaries of hourly traffic, delivered/received messages, deferred/rejected messages, SMTP delivery failures, warnings, and the quantity of senders and recipients.
    • Added support for intermediate certificates.
    • Added advanced anti-spam settings and spam client connection rejection.
    • Added daily sending quota to limit each user's outbound mails.
    • Added mail server settings check to analyze potential weaknesses.
    • Added support for app privilege.
  12. PACS
    • PACS is a clinical data management application that can be used to store, access, transfer, and manage medical images and digital reports in DICOM format.
  13. Ruby
    • Ruby is an object-oriented open source programming language with a focus on productivity and simplicity.
  14. Node.js
    • Node.js is a platform built on Chrome’s JavaScript runtime and is becoming widely popular for developers to build fast and scalable network applications.
  15. Python Module
    • Python Module package now provides supplemental extensions for Python 2.7.
  16. iTunes Server
    • Album covers are now displayed.

Caveats & Limitations

  1. Data Replicator has reached the end of its life span. You are encouraged to use Cloud Station to back up data on your PC or mobile device.

(2014/10/29)

Fixed Issues

  1. Fixed an issue that could cause DSM to become inaccessible after a system upgrade with a certain type of hard drive.
  2. Fixed an issue where the name of shared folders could be incorrectly displayed, making data inaccessible when connecting via WebDAV protocol.

(2014/10/28)

What’s New

  1. This hotfix includes all bug fixes as well as security fixes in the previously released critical updates since DSM 5.0-4458.
  2. This hotfix will remove any current known malware on your Synology NAS.

Fixed Issues

  1. Fixed two Linux kernel vulnerabilities that could allow local users to cause a denial of service resulting in uncontrolled recursion or unkillable mount process (CVE-2014-5471 and CVE-2014-5472).
  2. Fixed one Linux kernel vulnerability that could allow local users to cause a denial of service or possibly gain privileges via a crafted application that triggers a zero count (CVE-2014-0205).
  3. Fixed one Linux kernel vulnerability that could allow man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate (CVE-2014-6657).
  4. Fixed one SNMP vulnerability where the improper validation of input could allow remote attackers to cause a denial of service (CVE-2014-2284).
  5. Implemented minor fixes related to the ShellShock Bash vulnerabilities previously addressed in DSM 4493-05 updates (CVE-2014-6277, CVE-2014-6278, CVE-2014-7186 and CVE-2014-7187, or as known as Bash 4.2-51, 4.2-52, and 4.2-53 for their Bash Patch-ID).

(2014/09/10)

Improvement

  1. Improve the stability of file copy to encrypted shared folders.

Fixed Issues

  1. Fixed a vulnerability that could allow servers to accept unauthorized access.

(2014/09/10)

Fixed Issues

  1. Fixed a vulnerability that could allow servers to accept unauthorized access.

(2014/08/26)

Fixed Issues

  1. Upgraded OpenSSL to Version 1.0.1i to fix multiple security issues (CVE-2014-3505, CVE-2014-3506, CVE-2014-3507, CVE-2014-3508, CVE-2014-3509, CVE-2014-3510, CVE-2014-3511, CVE-2014-3512, and CVE-2014-5139).
  2. Implemented fixes for Kerberos 5 to address multiple security issues that allow remote attackers to cause a denial of service (CVE-2012-1013, CVE-2014-4341, CVE-2014-4342, CVE-2014-4344).
  3. Fixed an issue where files with ACL attributes could become inaccessible after being loaded in large batches when DiskStation acts as an NFS server.
  4. Fixed an issue where the restore might not be successful when containing multiple subfolders in Time Backup.
  5. Fixed an issue where DHCP server service does not map to the correct VLAN interface if the service started before VLAN is enabled.

(2014/08/26)

Fixed Issues

  1. Upgraded OpenSSL to Version 1.0.1i to fix multiple security issues (CVE-2014-3505, CVE-2014-3506, CVE-2014-3507, CVE-2014-3508, CVE-2014-3509, CVE-2014-3510, CVE-2014-3511, CVE-2014-3512, and CVE-2014-5139).
  2. Implemented fixes for Kerberos 5 to address multiple security issues that allow remote attackers to cause a denial of service (CVE-2012-1013, CVE-2014-4341, CVE-2014-4342, CVE-2014-4344).
  3. Updated to the last version of PHP 5.3, announced EOL by the official PHP development team, to address multiple security vulnerabilities (CVE-2014-3981, CVE-2014-3515, CVE-2013-6712, CVE-2014-0207, CVE-2014-0238, CVE-2014-0237, CVE-2014-4049).

(2014/07/24)

Improvements

  1. Improved the stability of volume expansion.

Fixed Issues

  1. Fixed two SAMBA vulnerabilities which allowed remote attackers to use the weaknesses to perform DoS attacks (CVE-2014-0244, CVE-2014-3493).
  2. Fixed an issue which prevented users from being able to log into DSM after completing QuickConnect Wizard after a fresh DSM installation.
  3. Fixed an issue causing slow response time in DSM on the early version of RS10613xs+ when too many concurrent connections were active.

(2014/07/24)

Improvements

  1. Improved the stability of volume expansion.

(2014/06/27)

Improvements

  1. Enabled SSD Read/Write Cache function on RS3614(RP)xs.

Fixed Issues

  1. Fixed several issues which occurred when managing EDS14 via CMS service.
  2. Fixed an issue that could cause High Availability to be unable to function properly or fail to set up after DSM upgrades.

(2014/06/25)

Change Log

  1. Updated OpenSSL to version 1.0.1h to address several severe security issues. (CVE-2014-0224, CVE-2014-0221, CVE-2014-0195, CVE-2014-0198, CVE-2010-5298, and CVE-2014-3470)
  2. Fixed a security issue that allows attackers to avoid checking mechanism and execute unintended commands via Web script.

(2014/06/17)

Change Log

  1. Fixed an OpenSSL security issue that allows remote attackers to inject data across sessions or cause a denial of service attack via SSL connection in a multi-threaded environment. (CVE-2010-5298)
  2. Fixed an issue that caused DSM firewall rules to become ineffective after system upgrade.
  3. Fixed several stability issues on DS214play after system migration.

(2014/06/11)

Fixed Issues

  1. Upgraded OpenSSL to Version 1.0.1h to fix several security issues. (CVE-2014-0224, CVE-2014-0221, CVE-2014-0195, CVE-2014-0198, CVE-2010-5298, and CVE-2014-3470)

(2014/06/04)

Change Log

  1. After updating to this version, DSM will run data scrubbing on RAID 5 volumes and disk groups that were created in DSM 4.1 or earlier versions to improve the stability of RAID 5 volumes.
  2. Fixed an issue where all web pages could display "No input file specified" when the value of "Customize PHP open_basedir" was set to “none” or empty.
  3. Enhanced the stability of iSCSI target service.
  4. Upgraded PHP to address a security issue that allows remote attackers to cause denial of service attacks to degrade the performance of target servers. (CVE-2014-0237)
  5. Fixed an OpenSSL security issue that allows remote attackers to inject data across sessions or cause a denial of service attack via SSL connection in a multi-threaded environment. (CVE-2010-5298)

(2014/04/24)

Compatibility and Installation

  1. After installing this version of DSM on DS214play, the device will shut down and then power on automatically after two minutes.

Change Log

  1. Added the GeoIP feature in Firewall settings, enabling you to allow or block IP addresses from certain countries.
  2. Added an option to save files in UTF-8 (with BOM) format in Text Editor.
  3. Fixed a security issue of Windows File Service to prevent remote attackers from obtaining access. (CVE-2013-4496)
  4. Fixed several security issues related to cURL. (CVE-2014-0139, CVE-2014-0015, CVE-2013-6422)
  5. Fixed an issue where CGI programs could not run on Personal websites.
  6. Added feature to disconnect user connections to HTTP(S) services after a user's password is changed.
  7. Improved the stability of iSCSI target service.
  8. Improved the stability of file transfers via Apple File Protocol.

This feature includes GeoLite data created by MaxMind, available from http://www.maxmind.com.

(2014/04/21)

Compatibility and Installation

DSM 4.3-3827 Update 2 can only be installed on Synology products running DSM 4.3-3827 via DSM Update. Please log in to DSM, go to Control Panel > DSM Update, click Update Settings and select Important Updates Only to see and install the update.

Change Log

  1. Fixed a critical security issue of OpenSSL (Heartbleed) to prevent secret keys from being compromised. (CVE-2014-0160)
  2. Fixed an issue causing the homes shared folder to become inaccessible after being moved to another volume.
  3. Fixed an issue allowing the basic information of Synology NAS devices to be obtained outside of the local network without authentication.
  4. Fixed password recovery e-mail to include the correct port number even when launched in Application Portal with customized ports.

(2014/04/10)

Change Log

  1. Fixed a critical security issue of OpenSSL (heartbleed) to prevent secret keys from being compromised. (CVE-2014-0160)
  2. Enhanced the reliability of moving shared folders to different volumes.
  3. Fixed a security issue causing encrypted shared folders to be mounted automatically after resetting the admin's password by pressing the reset button.
  4. Fixed an issue causing system services and applications to possibly stop working.
  5. Fixed an issue causing files indexing in Media Library to possibly stop working.
  6. Fixed an issue preventing users from logging into FTP service when Personal Website was enabled and the homes shared folder was located on an ext3 volume.
  7. Fixed an issue causing hard drives to not hibernate when SSD read-write cache was enabled.

(2014/03/26)

Change Log

  1. Fixed a security issue to prevent cross-site scripting attacks (XSS).
  2. Fixed an issue where encrypted shares could not be mounted on ext3 volumes.
  3. Fixed an issue where WMM QoS settings did not take effect normally.
  4. Fixed an issue where some USB ports were unusable in certain situations when a USB hub was connected.
  5. Fixed several issues related to USB external drives.
  6. Enhanced the stability of file transfers.
  7. Enhanced the compatibility of Multiple Version Backup when source folder contains device nodes.
  8. Enhanced the compatibility of WebDAV when using NetDrive.
  9. Changed the error reporting settings of Web Station.

(2014/03/18)

Change Log

  1. Fixed a security issue related to OpenSSL (CVE-2013-4353).
  2. Fixed security issues by upgrading PHP to version 5.3.28 (CVE-2013-4073, CVE-2013-6420).
  3. Fixed a security issue to prevent malicious attacks via NTP service (CVE-2013-5211).
  4. Fixed an issue where encrypted shared folders on ext3 volumes could not be mounted.
  5. Fixed an issue where Microsoft IIS (Internet Information Services) servers could not list files in shared folders on the DiskStation via SMB.
  6. Fixed an issue where files could not be listed using command line after SMB signing was enabled.
  7. Fixed an issue where data might not be correctly written to a degraded RAID 5 volume. (Applied to: DS213+, DS413, DS213, DS413j, DS213air, DS213j, DS212, DS212+, DS212j, RS212, RS812, DS112j, DS112, DS112+, RS411, DS411, DS411j, DS411slim, DS211+, DS211, DS211j, DS111, DS410, DS410j, DS210+, DS210j, DS110+, DS110j)
  8. Fixed an issue where shutting down or rebooting the DiskStation would fail when DDoS protection was enabled.
  9. Improved system stability when transferring files under heavy workloads.

(2014/03/10)

Compatibility and Installation

  1. DSM 5.0 will be the last DSM upgrade for all 10-series Synology NAS due to hardware capabilities.
  2. All packages must be updated to be compatible with DSM 5.0.
  3. The following packages are not available nor compatible with DSM 5.0: Zarafa, DVBLink, and Polkast.
  4. DSM 5.0 can only be installed on Synology products running DSM 4.3 or later. Before starting, please log into DSM and go to DSM Update to install the latest DSM.
  5. The permissions of “web” shared folder will be changed after it is converted to Windows ACL permissions. Please refer to the Web Station section for details.
  6. Some features have certain hardware requirements and are only available on select Synology NAS products.

What's New in DSM 5.0

  1. Brand New User Interface

    • Visual design has been totally revamped to provide a cleaner look and touch-friendly user experiences.
    • High-resolution images are displayed when launched with Ultra HD or retina-display supported devices.
    • Badges-style notification counters appear on application icons.
    • Login page displays local weather information.
  2. QuickConnect

    • QuickConnect now supports DSM, Photo Station, Audio Station, Surveillance Station, Download Station, Video Station, File Station, providing simplified remote access, without the hassle of setting up port-forwarding on your router.
    • All mobile apps support QuickConnect.
    • Enabling QuickConnect requires registering a MyDS Center account.
    • Web Station and Mail Station does not support QuickConnect.
  3. Backup and Replication

    • Multiple version backup is now available on local backup, backup to another DiskStation. Only the differential blocks of data are retained among each version, allowing file history to be maintained with better storage efficiency.
    • Overview page displays scheduled and completed backup tasks.
    • Credentials for creating backup destinations can be saved as a profile to make backup task creation easier.
    • Data and configuration backup created in DSM 5.0 can only be restored in DSM 5.0.
    • Data and configurations that were backed up in DSM 5.0 cannot be restored using DSM 4.3 or earlier.
  4. Control Panel

    • Layout has been redesigned for better navigation and organization.
    • Service list displays related firewall and port-forwarding settings.
    • VPN client settings have been integrated into Network > Network Interface.
    • Shortcuts on DSM Desktop that were created previously will be cleared after upgrading to DSM 5.0.
  5. Shared Folders with Windows ACL Permissions

    • The access permissions of shared folders are based on Windows ACL, allowing you to fine-tune permissions beyond just Read Only, Read/Write, No Access. Newly created shared folders implement the permission settings of Windows ACL.
    • For shared folders created in DSM 4.3 or earlier, you can either convert the existing permissions to Windows ACL, or leave the permission unchanged.
    • The shared folders - photo, surveillance, and shares on external storage or volume with ext3 file system cannot use Windows ACL permissions.
  6. Storage Manager

    • New overview displays the overall health of all disks and volumes, as well as hard disk utilization, volume, and iSCSI LUN usage.
    • Disk health information includes the current and historical health of hard disks
  7. SSD Cache

    • Read/Write cache is supported. Two identical SSDs can be combined to create a RAID 1 read-write cache and enhance the performance of a volume or block-level iSCSI LUN.
    • A high-availability cluster cannot be created when SSD read-write cache is enabled.
  8. Package Center

    • Auto updating allows packages to be updated automatically.
  9. Log Center

    • Syslog Server and System Logs have been integrated into a single, centralized application.
  10. Support Center

    • Support tickets can now be sent directly from DSM.
    • Remote access and log generation allow Synology support engineers to remotely diagnose technical issues on your Synology NAS.
  11. File Station

    • File sharing links can be created and shared with your Google+ and Facebook friends. Those who receive the link will be asked to enter their Google+ or Facebook login credentials before accessing the folder or file.
    • You can view Microsoft Office documents using Office Online when QuickConnect is enabled.
  12. Text Editor

    • Plain text files can be edited directly in DSM.
    • Rich features are available, such as the ability to change character encoding, recognize file types, and see variable highlighting.
  13. DSM Help

    • Online help files can be viewed in DSM Help, allowing you to read the latest versions of documentation regarding DSM and packages.
    • Font size can be changed to larger sizes.
  14. Web Station

    • The “http” group (http) is the service account for Web Station, introducing better flexibility and security. Web applications will run as the same permission as “http” group. We suggest reviewing the permissions of the web folder and assign appropriate permissions to http group.
    • The PHP version has been updated to 5.5. Please check the compatibility of your PHP-based web apps with php 5.5. The details can be found at Migrating from PHP 5.3.x to PHP 5.4.x and Migrating from PHP 5.4.x to PHP 5.5.x.
    • Performance has been enhanced with Apache MPM worker.
  15. Media Library

    • The default indexed folders - photo, video, audio - are removable from indexed folders.
    • The types of media to be indexed in each default folder can be changed.
  16. Synology High Availability

    • When binding two or more ethernet connections to create an aggregated heartbeat connection, load balancing and failover are supported.
  17. iSCSI Performance

    • For iSCSI LUN with Advanced LUN option enabled, iSCSI random read performance has been enhanced by over 6 times, as illustrated in the below comparison:
    IOPS (4KB) DSM 4.3 DSM 5.0 Improvement
    Read IOPS from DS1813+ 135 995 637 %

    Configured with 4 HDDs composed in SHR-1, the LUN used for testing is a 100G LUN with advanced LUN features enabled. Tested by IOmeter by 100% random read with 4k block size.

  18. File Service

    • AFP (Apple Filing Protocol) performance has been improved, as illustrated in the below comparison of transferring 5000 x 1MB files to Synology NAS:
    Mac to Synology NAS DSM 4.3 DSM 5.0 Improvement
    DS213j 25.14 MB/s 31.42 MB/s 25.0%
    DS1513+ 31.64 MB/s 41.61 MB/s 31.5%
  19. SPDY

    • Support for SPDY v3.0 accelerates the overall responsiveness of the user interface when using HTTPS connections.
  20. Memory Compression

    • Least recently used data in memory is compressed, improving system responsiveness when under heavy load.
  21. Wi-Fi

    • Connecting up to two USB Wi-Fi adapters is supported, allowing your Synology NAS to share its Internet connection via both 2.4GHz and 5GHz ranges.
    • You can bridge your wired connection with Wi-Fi hotspot(s) to extend your wireless network range and unify your existing local network and the wireless network hosted on your DiskStation.
  22. Snapshot Manager

    • Synology Snapshot Manager software plugin available on vSphere and Windows Server environments to create application-consistent snapshots in DSM.
    • For VMware environments, you can install Synology Snapshot Manager for VMware vCenter Server on Windows Server. After installation, when a snapshot is triggered on DSM, vCenter Server will be notified and flush all the data from memory to the LUN to guarantee data consistency. Once the snapshot is complete, vCenter Server will resume normal I/O operation of VMware datastore.
    • For Windows environment, you can install Synology Snapshot Manager for Windows Server. After installation, when a snapshot is triggered on DSM, Synology Snapshot Manager will use the Microsoft Volume Shadow Copy Service (VSS) technology to produce consistent point-in-time copies of data. Synology Snapshot Manager for Windows Server also supports performing snapshots when triggered by 3rd party software via VSS.
    • Synology Snapshot Manager for VMware vCenter Server supports vSphere 5.1 or later, and vSphere web client server plugin is required for application interface. Snapshot Manager for Windows supports Windows Server 2008 R2, 2012 and 2012 R2. VMWare applications support up to 3 maximum concurrent snapshot tasks.
  23. Surveillance Station Max. Camera

    • The maximum number of IP cam has been increased. Please refer to product page for detailed information.

What's New in Mobile Apps

  1. DS audio for Android

    • It's now possible to stream to a Chromecast.
    • The lock screen controls now also apply to the remote player.
    • Supports force transcoding of all formats, even those natively supported by Android devices (notably .FLAC).
    • Streaming quality can be adjusted if your Synology NAS supports audio transcoding.
  2. DS audio for iPhone/iPad

    • It's now possible to stream to a Chromecast.
    • The lock screen controls now also apply to the remote player.
    • Improved the mini-player design (notably for the portrait mode).
    • Supports force transcoding of all formats, even those natively supported by the iDevice (notably .ALAC)
    • Streaming quality can be adjusted if your Synology NAS supports audio transcoding.
  3. DS photo+ for Android

    • Photos can be displayed on Apple TV with AirPlay support.
    • Instant Upload has the option to upload “photos only” (skip videos).
    • Logging in to your Personal Photo Station has been simplified.
  4. DS photo+ for iPhone/iPad.

    • Instant Upload has the option to upload “photos only” (skip videos).
    • Logging in to your Personal Photo Station has been simplified.
  5. DS photo+ for Windows Phone

    • Smart albums, Tags and Categories created in Photo Station can be viewed.
    • Photos can be displayed on Apple TV.
  6. DS file for iPhone/iPad

    • User interface has been redesigned, and overall usability has been improved.
    • Thumbnails are now displayed.
    • The following features require DSM 4.3 or later:

    • Files and folders can now be shared with users without DSM accounts.

    • Advanced search options are now available in addition to local folder search by keyword filtering.
    • Supports compress/extract files as in File Station.
    • Folders can be added to “Favourites” like in File Station.

    • Video playback can now switch to HTTP when using a HTTPS connection. (iOS only)

  7. DS file for Windows Phone

    • Image thumbnails are now displayed in list view.
  8. DS cloud for Android and iPhone/iPad

    • Folders can be selected on multiple Synology NAS servers.
    • You can view the status of files being synced, such as the progress and sync speed.
    • DS cloud update is required to be compatible with Cloud Station 3 in DSM 5.0.
  9. DS download for Android and iPhone/iPad

    • Supports selecting the destination folder for your downloads.
  10. New DS download for Windows Phone

    • Monitor Download Station and view download task information.
    • Create tasks using the BT search, embedded Web-browser, or inputting the URL directly.
    • Update RSS feeds.
    • Enable download schedules.
    • Select the destination folder for your downloads.
  11. DS video for Android and iPhone/iPad

    • It's now possible to stream to a Chromecast
    • Videos can be downloaded for offline viewing.
    • Quality options are now available when streaming to an Apple TV.
  12. DS video for Windows Phone

    • Quality options are now available when streaming to an Apple TV
  13. DS video for Samsung TV

    • Browse and stream your video collection with a dedicated app for Samsung TV.
    • Stream Live TV with a DVB-T/DVB-S dongle plugged into your Synology NAS.
    • Option to enable transcoding (on Synology NAS models which support transcoding).
    • Subtitles are supported (.srt support, and embedded subtitles for .mkv).
    • DS video for Samsung TV is available on Samsung Smart Hub for USA market. Manual installation is possible for other countries, please refer to this link.

Known Issue

  1. Plex Media Server

    • Users need to manually set read permission for the “plex” user at the User page in Control Panel to allow Plex Media Server to read the shared media folder content.
  2. Cloud Sync

  3. If a file in Google Drive cannot be transferred within one hour, it has to be re-transferred.

(2014/02/14)

Change Log

  1. This update repairs the system and removes malware caused by past system vulnerabilities (CVE-2013-6955, CVE-2013-6987).
  2. The compatibility of SMB 2 file service has been enhanced when transferring files to Mac OS X 10.9.
  3. Fixed an issue where SFTP service would consume excessive memory when it was enabled.
  4. Enhanced the reliability of QuickConnect and Push Service notifications.

(2014/01/09)

Compatibility and Installation

  1. DSM 4.3-3810 Update 4 can only be installed on Synology products running DSM 4.3-3810 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Improvements

  1. Enhanced the security of Windows File Services (SMB) to prevent unauthorized access. (CVE-2013-4408, CVE-2012-6150)
  2. Enhanced the compatibility of File Station with Internet Explorer 11.

Fixed Issues

  1. Data that was read from a volume would be incorrect when a crashed SSD cache was mounted on that volume.
  2. SNMP service would consume excessive memory when it was enabled.
  3. Synology NAS could not shut down or reboot when DoS protection was enabled.

(2013/12/19)

Compatibility and Installation

  1. DSM 4.3-3810 Update 3 can only be installed on Synology products running DSM 4.3-3810 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Change Log

  1. Enhanced system security to prevent unauthorized access via File Station, Windows File Service (SMB), WebDAV, DSM from HTTP and telnet.(CVE-2013-4475, CVE-2013-6987)
  2. Fixed an issue where backup tasks might be deleted when the external drive was ejected, if the external drive was selected as the backup destination.

(2013/12/05)

Compatibility and Installation

  1. DSM 4.3-3810 Update 2 can only be installed on Synology products running DSM 4.3-3810 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Fixed Issues

  1. Fixed an issue where the system partition will probably have insufficient free space if logs of Windows File Service is enabled.
  2. Fixed an issue where the system partition of DS213+ and DS413 will probably have insufficient free space in some network environments.
  3. Enhanced the stability of DS213+ and DS413 when they are connected with Synology expansion units.
  4. Enhanced the overall stability of DSM.

(2013/11/20)

Compatibility and Installation

  1. DSM 4.3-3810 Update 1 can only be installed on Synology products running DSM 4.3-3810 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Fixed Issues

  1. Fixed a system security issue to prevent unauthorized access via File Station. (CVE-2013-6955)
  2. Fixed a system security issue of Auto Block to prevent IP addresses from being improperly added to the Block List.
  3. Improved the compatibility of file uploading with Internet Explorer 11 in File Station.

(2013/11/07)

Fixed Issues

  1. Enhanced the compatibility of SMB 2 with Mac OS X 10.9.
  2. Enhanced the compatibility of File Station with Internet Explorer 11.
  3. Added an option that allows the domain to be changed in NFS v4 settings.

(2013/10/15)

Compatibility and Installation

  1. DSM 4.3-3776 Update 3 can only be installed on Synology products running DSM 4.3-3776 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Fixed Issues

  1. Enhanced the security while logging in to DSM via telnet.
  2. Enhanced CalDAV compatibility with Calendar in iOS7.
  3. Enhanced the stability for ODX transferring.
  4. Enhanced the security of DSM operating system. (CVE-2013-2174, CVE-2013-1944, CVE-2012-4929)
  5. Optimized CPU usage when multiple HTTP connections are established to the same Synology NAS.
  6. Fixed an issue where downloading a whole folder may fail in Internet Explorer.
  7. Fixed an issue where the banner of Photo Viewer and Video Viewer may be hidden if Remove Banner in Control Panel > Application Portal > Options is selected.
  8. Fixed an issue where Synology NAS may not be able to hibernate when Audio Station is running.
  9. All the fixes that have been delivered in DSM 4.3-3776 Update 1 and Update 2 are included in this update.

(2013/09/26)

Compatibility and Installation

  1. DSM 4.3-3776 Update 2 can only be installed on Synology products running DSM 4.3-3776 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Fixed Issues

  1. Enhanced the security of DSM operating system.
  2. Fixed an issue where thumbnails may not be generated correctly.
  3. All of the fixes that have been delivered in DSM 4.3-3776 Update 1 are included in this update.

(2013/09/17)

Compatibility and Installation

  1. DSM 4.3-3776-1 can only be installed on Synology products running DSM 4.3-3776 via DSM Update. Please log in to DSM and go to Control Panel > DSM Update to install the update.

Fixed Issues

  1. Enhanced the stability of iSCSI LUN and volumes.
  2. Enhanced the security of DSM operating system.
  3. Resolved a compatibility issue so that you can install Photo Station 5 on DSM 4.3.

(2013/08/27)

Compatibility and Installation

  1. DSM 4.3 can only be installed on Synology products running DSM 4.0 or later. Before starting, please log into DSM and go to Control Panel > DSM Update to install the latest available update.
  2. The following packages must be updated to be compatible with DSM 4.3: Photo Station, Audio Station, Video Station, and Media Server, AntiVirus by McAfee, Antivirus Essential.
  3. Some features have special hardware requirements and are only available on select models.

What's New

  1. Trust Domain Support in Active Directory

    • Users and groups belonging to trusted domains can be assigned privileges to access files or run applications after your DiskStation joins a Windows domain.
    • You can specify how often the DiskStation automatically updates the domain user/group list.
  2. Broader LDAP Client Support

    • Your DiskStation can now join an LDAP domain hosted by IBM Domino LDAP Server 8.5.
    • If you use a different LDAP server with different attributes for account names and group names, there are now options to specify or customize how user and group information is mapped to LDAP attributes.
  3. NFS

    • NFS v4 support has been added, including pseudo file system and a stateful protocol.
    • NFS v3 and v4 now support IPv6.
    • If Kerberos security flavor is implemented, you can map the NFS client to a local user, a domain user or a LDAP user.
    • Additional NFS settings have been added for NFS v3 and NFS v4, such as default read and write packet size, or allow clients to access NFS servers with insecure, non-privileged ports.
  4. Speed Limit Scheduler

    • Bandwidth speed limits can now be configured according to a schedule, so speed limits will take effect at specific times only.
    • Varying speed limits can be customized for each user and group, allowing you to implement different limits at different times.
  5. Task Scheduler

    • When creating tasks to automatically empty recycle bins, you can now define a retention policy to control what files are permanently deleted according to time, size, or file types.
  6. Self-service Password Recovery

    • System admins can allow DSM local users (and LDAP users on Synology Directory Server) to conveniently reset passwords via email.
  7. HFS+ Support

    • HFS+ External drives are supported in DSM 4.3.
    • Read only is supported and the maximum volume size is 2TB.
    • HFS+ journal is not supported.
  8. File Station

    • You can now create links to share folders with non-DSM users.
    • Users allowed to create sharing links can now be specified.
    • The size of thumbnails can be changed.
    • You can drag-n-drop files or folder to your desktop to download them easily. Supports Google Chrome browser only.
  9. Advance Options for Windows File Service (SMB)

    • The following advance options for Windows File Service (SMB) have been added: DirSort VFS module; Veto files (hide files according to specified criteria); symbolic links and wide links; MSDFS VFS module (allowing symbolic links to point to files or folders located on another server); save debug logs; and clear SMB cache files.
  10. Package Center

    • A default volume on which packages being installed can be specified, simplifying package installation.
  11. Disk Usage Report

    • You can easily remove duplicated files in the disk usage report.
  12. 3G/4G USB Dongle Support

    • A 3G/4G USB dongle can be plugged into your NAS, allowing it to connect to a mobile network. On DS213air or DiskStations with Wi-Fi dongle, you can share your 3G/4G Internet access with tablets and laptops wirelessly.
    • See the link for supported 3G/4G USB dongles.
  13. Wi-Fi Hotspot Enhancements

    • Time-based Parental Control: Allows you to control when each client device connected to the DiskStation's local network can access the Internet. The feature are available on DS213air only.
    • UPnP Internet Gateway: Enable UPnP service to allow your DiskStation to become a UPnP Internet Gateway device, so that devices that are connected to the local network of the DiskStation can configure port forwarding settings with UPnP. For DS213air or other drives with USB Wi-Fi adapter plugged only.
    • PPPoE Relay: Allows devices that are connected to the DiskStation to connect to the Internet via PPPoE connection. For DS213air or other devices with USB Wi-Fi adapters only.
  14. DSM Update

    • You can change DSM update settings to always install the latest version of DSM and critical updates, or install critical updates only.
  15. File System Check (FSCK) utility has been added.

  16. Built-in VPN client now supports L2TP over IPSec connection.
  17. FTP

    • ASCII support: Allows the DiskStation to properly transfer ASCII formatted plain text files via FTP.
  18. Misc.

    • S3 Network Backup supports multipart data upload.
    • PHP has been upgraded to 5.3.27.
    • Additional Security options to enhance the system's protection against cross-site request forgery attacks.

What’s New in Mobile Apps (Coming Soon)

  1. DS download for iPhone/iPad & Android phones

    • Search torrents by keywords and download them directly to the DiskStation.
  2. DS video for iPhone/iPad, Android & Windows Phones

    • Recordings can now be created by specifying the start time and the duration.
  3. DS audio for iPhone/iPad

    • New theme and sliding menus.
    • Displays the album covers when browsing.
    • Complete playlist management, allowing you to create, edit and delete playlists.
    • “By Composer” now added to browse your library.
    • Full screen player for iPad version
    • Gapless playback when streaming to the iPhone/iPad.
    • Airplay device password protection is now supported in DS audio.
  4. DS photo+ for iPhone/iPad

    • New interface with sliding menus.
    • Browse any Smart albums, Tags, as well as Categories you have created in Photo Station.
    • Displays sub-album names in thumbnail mode.
  5. DS photo+ for Android and Google TV

    • Virtual albums support: Smart albums, Tags and Categories can be browsed.
  6. DS audio for Android

    • Offline playback allows you to download music to your device.
    • Displays the album covers when browsing.
    • Complete playlist management, allowing you to create, edit and delete playlists.
    • “By Composer” has been now added to browse your library.
    • Gapless playback in streaming mode to the Android device.
  7. DS cam for Android

    • Updated theme and Android 4.0 UI design style.
    • Supports better streaming quality for cameras with H. 264 output
    • Select cameras to customize Multi live views (by camera group or by DiskStation)
    • Enable / disable IP cameras.
    • View key camera information.
    • Digital zoom in / out on PT cameras.
    • Support for audio streams.
  8. DS cloud for Android

    • Allows you to select a specific folder on the Android device to sync data.
  9. DS file for Windows Phone

    • DS file for Windows Phone allows you to browse and manage files stored on your DiskStation, as well as upload photos from the Camera roll directly to the DiskStation.
    • You can create sharing file links, protecting them with a password and an expiration date, compressing and extracting files on your DiskStation, or adding folders you access most often to your “Favourites” list.
    • You have to upgrade your DiskStation to DSM 4.3 to run this app.
  10. DS video for ROKU

    • DS video lets you access Video Station on your Synology NAS server, to watch videos, record digital TV programs, or simply stream them live. Categorize your videos with either default or custom libraries and create your own video collection lists for quick access.
    • You have to upgrade Video Station to 1.2 to have all features of DS video.

(2013/04/18)

What's New

  1. Fixed an issue where users could not connect to the DiskStation via FTP over SSL.
  2. Fixed an issue which kept the DiskStation from connecting to SNMP (Simple Network Management Protocol) UPS devices.
  3. Fixed an issue where domain users could not obtain an emergency code for 2-step verification.
  4. Improved the compatibility of file sharing via SMB/CIFS with Mac computers.
  5. Improved the stability of generating Disk Usage Reports.
  6. Improved the stability of iSCSI LUN.
  7. Improved the compatibility when backing up data between different versions of DSM.
  8. Improved stability when syncing files between two DiskStations with Shared Folder Sync.
  9. Improved the stability when backing up data to another DiskStation with Time Backup.
  10. Other issue fixes and enhancements.

(2013/03/04)

Compatibility and Installation

  1. DSM 4.2 will be the last DSM upgrade for all 9-series Synology NAS due to hardware capabilities.
  2. DSM 4.2 can only be installed on Synology products running DSM 4.0 or later. Before starting, please log into DSM and go to Control Panel > DSM Update to install the latest available update.
  3. The following packages must be updated to be compatible with DSM 4.2: VPN server, Mail Server, Mail Station, Video Station, Time Backup, Logitech Media Server.
  4. Some features have special hardware requirements and are only available on select models.

What's New

  1. Storage Manager

    • Global Hot Spare Disks -- Hard disks can now be designated as hot spare disks, which can repair degraded volumes/Disk Groups/iSCSI LUNs by automatically replacing a failed disk.
    • S.M.A.R.T. Test Scheduler -- You can now perform S.M.A.R.T. tests according to your individual schedule. For example, S.M.A.R.T.tests can be scheduled to run monthly or automatically test all of the disks in your DiskStation.
  2. File Services for Windows, Mac OS, and Linux

    • SMB2 Protocol Support for Windows File Service -- SMB 2 protocol has general improvements to allow for better network utilization.
    • Large MTU Support for SMB2. The Large MTU (maximum transmission unit) option allows users to utilize the network capabilities better and achieve faster transferring speed. You can enable this option through a registry key on Windows computers.
    • AFP (Apple File Protocol) Performance Enhancements -- The speed of file transfers to the DiskStation has improved up to 52%. The following is a comparison between DSM 4.1 and DSM 4.2.
    DSM 4.1 DSM 4.2 Improvement DS212+
    45.2 MB/s 68.6 MB/s 51.6%
    • Network Backup, rsync, and Shared Folder sync -- The performance of these feature has been generally improved when transferring large numbers of folders and files. The following is a comparison between DSM 4.1 and DSM 4.2.
    DSM 4.1 DSM 4.2 Improvement Backup 5000x 1MB files in 1110 folders from DS213+ to DS212
    32.8 sec 14.55 sec 2x

    The time used to run the backup task for the second time.

  3. File Station

    • Single Page of Files -- You can now browse up to 1000 files on one single page.
    • Thumbnail View -- Files and pictures can be displayed as large icons or thumbnails of pictures, if available.
    • Hotkeys -- The following keyboard shortcuts have been added in order to simplify file management: Select All (Ctrl + A), Cut (Ctrl + X) , Copy (Ctrl + C), Paste (Ctrl + V), Delete (Delete), Rename (F2).
  4. TFTP & PXE

    • TFTP & PXE -- You can now set up your DiskStation as a TFTP server, allowing clients to retrieve system boot images via TFTP and implement Pre-Boot Execution Environment (PXE).
  5. Package Center

    • New Design for App Discovery -- You can now browse packages by categories or search for specific packages. Screenshots are included to give you a preview of the app before installing them.
    • Transaction Platform -- Paid and trial versions of packages are available in the new Package Center. Please note, you will need a MyDS Center account in order to purchase paid apps.
    • Integrated with MyDS Center Account -- You can now review your purchase history on the MyDS Center website.
  6. 2-step Verification & Account Activity

    • 2-step Verification-- This feature adds an extra layer of security to your DSM account. Once 2-step verification is enabled, anyone trying to access your account will need a one-time 6-digit code displayed on your smartphone, in addition to your DSM password.
    • Account Activity -- This feature lets you view your current login session and login history.
  7. Firewall & Security

    • Denial of Service (DoS) Protection -- This option allows you to filter out malicious traffic without interrupting safe traffic.
    • Customized Block & Allow IP List for Auto Block -- You can now manually add IP addresses to your Block and Allow lists to protect your network.
  8. LDAP/AD Accounts

    • More Apps for Enterprise Users -- Enterprise users can now enjoy more features of DSM with LDAP or AD accounts. Supported packages includes Cloud Station, Audio Station, Video Station, Mail Server, and Mail Station.
  9. Task Scheduler

    • Automate Tasks -- Task Scheduler allows you to schedule and run tasks at pre-defined times. Tasks include running user-defined scripts, cleaning the Recycle Bin on a regular basis, and starting and stopping services, among others.
  10. Disk Usage Report

    • Easily Monitor Storage Usage -- The disk usage report feature displays the following information: the outstanding storage usage of users, the status of volume usage, trends based on past usage, the percentage of disk space that each file type occupies, the size of shared folders, and the largest, most, least frequently modified files.
    • Schedule Report -- You can schedule periodic reports or perform analyses immediately.
  11. Bluetooth Support

    • Stream music with Bluetooth -- You can to connect multiple USB Bluetooth adapters to your DiskStation and connect to A2DP Bluetooth devices, such as speakers or headphones in order to easily stream music stored on your DiskStation.
  12. DDNS

    • Support for Multiple DDNS Hosts-- More than one DDNS provider can now be set up and saved at the same time.
    • Supports Chinese domain names provided by Oray DDNS.
  13. QuickConnect

    • More Mobile Support -- QuickConnect now supports more mobile apps, including DS photo+, DS audio, and DS cloud.
  14. Power, Devices and Printers

    • Network UPS Support -- DiskStation now supports connecting to SNMP (Simple Network Management Protocol) UPS devices or network management cards, allowing your DiskStation to enter safe mode based on the status of your network UPS.
    • Network Printer Support -- DSM now supports LPR, IPP, Socket, and BJNP network printers and can share them over the network via AirPrint, Cloud Print, LPR, CIFS, IPP protocols. Windows users can set up network printers shared by DiskStation with Synology Assistant.
  15. Wi-Fi Connectivity Enhancements

    • WPA2 Enterprise -- If your DiskStation has a USB Wi-Fi adapter installed or built-in, you can join a wireless network with WPA2 Enterprise security.
  16. The desktop version of DSM on touch-enabled devices has been enhanced to support more touch events for Safari on iPhone, iPad and Chrome on Android devices.š

    • Application windows can be auto-maximized and auto-centered.
    • Users can use 3-finger gestures to switch between applications.
    • Users can long-press on items to right-click.
    • Supports double tapping items.
  17. Certificate Management

    • Certificate management allows you to create a self-signed certificate or a certificate request, or import certificates to DSM for encrypted services, such as web (HTTPS), FTP, RADIUS server, and mail services.
    • You can view info regarding your server certificate, including expiration date, issuer, and subject (common name) in Control Panel > DSM Settings.
  18. Misc.

    • Apache has been upgraded to 2.2.23.
    • PHP has been upgraded to 5.3.21.
    • Perl is now a standalone package.
    • If you enable SSH service and open its port (22) to the Internet, you may notice many attempts to access your DiskStation in System Logs, because SSH connections are now recorded in DSM 4.2. To protect your DiskStation, we suggest configuring Firewall settings to allow only select IP addresses to access your DiskStation via SSH.
    • Supports an alternative DNS server in network settings
    • You can discover your Synology NAS with SSDP (Simple Service Discovery Protocol) before DSM is installed if the Synology NAS has been installed DSM 4.2 once.

(2012/12/18)

Change log:

  1. Fixed an issue where you may not see the files via Windows File Service (CIFS protocol) after you rename them.
  2. Fixed an issue where you may not be able to delete files via Windows File Service.
  3. Fixed an issue where the DiskStation may not enter safe mode when a power outage occurs.
  4. Improved overall reliability of Windows File Service.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/11/15)

Change log:

  1. Fixed an issue where files in the encrypted shared folders were case-sensitive.
  2. Fixed an issue where file transmission over HTTPS was slow.
  3. Fixed an issue where the system time of DiskStation was inaccurate.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/10/02)

Change log:

  1. Fixed an issue where the folder and file names were case-sensitive when you access them via Windows File Sharing.
  2. Fixed an issue where full backup was performed when it should be incremental backup. Amazon S3 users should apply this update to reduce the amount of data transmission.
  3. Improved the NFS performance when mounted to VMware ESXi 5.1 servers.
  4. Improved the AirPrint compatibility with iOS 6 devices.
  5. Improved the compatibility with Internet Explorer 10.
  6. Other fixes.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/08/31)

  • DSM 4.1 can only be applied to Synology NAS with DSM 4.0 and onward. Download DSM 4.0 at: Americas, Asia, Europe, Hong Kong
  • Due to the hardware capability, not all of the features of DSM 4.1 are available to all models; please see below for more information. If you would like to experience the full potential of DSM 4.1 or the future release of the DSM operating system, please consider upgrading the Synology NAS to a new one.

New Feature Highlights

  1. Firewall with Traffic Control:

    • The Traffic Control allows you to reserve, limit, or prioritize the bandwidth usage for difference services to help you manage your bandwidth resource effectively.
    • The maximum bandwidth for each network port or port range can be set up within the built-in Firewall.
  2. Speed Limit:

    • In FTP, File Station,WebDAV and Network Backup settings, you can set the bandwidth for selected users, groups, to limit speed of a single user, or the total bandwidth usage for a group.
    • Speed limit is supported on domain users and groups including LDAP domain or Windows AD.
    • The file transfer sessions with speed limit can be viewed in System Information.
  3. FTP Server:

    • SFTP server is supported to meet the enterprise security standard.
    • SFTP server port number can be either specified or the same port as SSH.
    • FTPS service supports FIPS by using OpenSSL FIPS 140-2 validated cryptography module.
    • FXP is supported, enabling users to exchange files between two FTP servers directly.
  4. Windows File Service Update:

    • Samba is now upgraded to 3.6 with the version of SMB protocol SMB1.
    • The authentication security is enhanced with NTLMv2 and updated Kerberos v5 support.
  5. Recycle Bin on all file protocols:

    • Recycle Bin now works in Windows File Sharing (CIFS), File Station, FTP, AFP and WebDAV. In case that you have accidently removed important files on Synology NAS, you can still simply retrieve the files back from recycle bin.
    • Recycle Bin can now be enabled or disabled on different shared folders.
  6. QuickConnect - File Sharing:

    • Users can now share any file links with the domain of GoFile.me without configuring port forwarding on the router.
  7. Shared Folder Sync:

    • Shared Folder Sync now supports synchronization from multiple Synology NAS to the same destination. This is supported only when DSM 4.1 is running on both source and destination servers.
  8. Resource Monitor:

    • The new Resource Monitor app enables you to monitor the CPU, physical memory, disks and network utilization of your Synology DiskStation.
    • View the swap in/out rate as well as IOPS, transfer rate, and the average loading of each disk.
    • Resource monitor log is now available to display the real time, 1 day, 1 week, 1 month, and 1 year of all analyzed reports with historical data.
    • View all the current running and idling processes on your Synology NAS.
  9. Connection via Proxy Server:

    • Synology NAS can now connect to the Internet via a proxy server in your LAN. You can update DSM or packages directly in the web interface more easily.
    • HTTP/HTTPS proxy server and authentication are supported.
  10. System Log:

    • The System Log consolidates all logs in DSM.
    • Spot important events including error or warning with just a few clicks.
    • Keyword search is available in the system log.
  11. SNMP v3:

    • SNMP v3 is now supported for you to monitor Synology NAS with enhanced security.
    • You can download Synology MIB files to configure your NMS (Network Management System) to monitor multiple Synology NAS.
    • IPv6 is supported to enable you to get the system status of your DiskStation.
  12. Netatalk is updated to 2.2.3.

  13. PHP module is updated to 5.3.15.
  14. Openssl has been updated to 1.0.1c.
  15. Apache is updated to 2.2.22.
  16. Thumbnail Creation Speed:

    • Thumbnail creation speed on Synology NAS has been improved with the new algorithm for thumbnail creation. Below is the test result of the time spent (in seconds) to get thumbnails of 160 MB pictures done.
    DSM 4.0 DSM 4.1 Improvement DS1512+ DS409+ DS112+
    395 150 163.33%
    565 500 13.00%
    2019 1538 31.27%
    • Photos can now be displayed more quickly in Photo Station in DSM 4.1 with the new thumbnail display mechanism.
    • You are able to set the thumbnail quality to be normal to make the thumbnail converting process a lot faster.
  17. Package Center:

    • You can update all packages with a single click on the Update All button.
    • Beta channel in Package Center is now available for subscription if you would like to try the latest/experimental features.
    • Available packages can now be sorted by name or by popularity.
  18. VPN connection is supported with reconnect automatically when the connection is lost.

  19. NTP server is now built-in in your DiskStation.
  20. DS video on iPhone/iPad (Available soon in App Store):

    • Watch videos in supported format (MP4, M4V, MOV) from the Video Station library on iPhone and iPad with DS video.
    • If you have plugged in a DTV dongle to your DiskStation, you will also be able to view and schedule TV program recording with DS video.
  21. DS download on iPhone (Available soon in App Store):

    • DS download allows you access Download Station remotely from your iPhone; you can view the list of your download tasks and the information of each task, as well as pause, resume or delete tasks.
    • Create download tasks through the in-built browser in DS download, using Safari, or simply by entering URL.
    • Manage settings of the Download Station, including the maximum upload and download speeds for different types. Advanced schedules defined in Download Station can be activated from DS download.
  22. DS file on iPhone/iPad and Android phone/tablet (Available soon in App Store and Play Store):

    • With Cloud Station integration, DS file allows you to sync files with the Cloud Station folder of your DiskStation.
    • Sync files with the Cloud Station folder of your PC/Mac (limited to 10MB per file and to the following formats: doc, ppt, xls, docx, pptx, xlsx, odt, ods, odp, epub, mobi, prc, pdf, txt, html, htm, pages, numbers, key, pages.zip, numbers.zip, key.zip)
  23. DS audio on iPhone/iPad (Available soon in App Store):

    • Assign specific songs to be always available for listening by storing on your iOS devices. When the network connection is not available, you can switch to the offline mode and play the songs you’ve downloaded.
    • Create and edit playlists from “Now playing” list.
    • View lyrics of the song currently being played.
  24. DS audio on Android phone/tablet (Available soon in Play Store):

    • Android tablets and landscape are supported.
    • You can view lyrics display for song being played.
  25. DS photo+ and DS audio on Windows Phone (Available soon in Marketplace):

    • DS photo+ & DS audio are now available on Windows Phone.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/05/15)

Change log:

  1. Photo Station, Audio Station, Surveillance Station and Download Station packages have been updated. Please refer to these packages’ release notes for details.
  2. Enhanced the stability of file based iSCSI LUN over 1TB.
  3. Fixed an issue that caused the incorrect aspect ratio in video playback in Photo Station.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/04/17)

Change log:

  1. Updated Photo Station, Audio Station, Surveillance Station, Media Server, iTunes Server and Download Station packages to the latest version if they were installed. Please refer to these packages’ release notes for details.
  2. Enhanced Samba protocol security by preventing remote code execution as the "root" user (CVE-2012-1182).
  3. Added a notification event when the DiskStation enters safe mode due to UPS low battery.
  4. Enhanced USB Copy to function properly with an attached iPhone.
  5. Fixed an issue where your DiskStation might not enter hibernation while DDNS service is enabled and PPPoE connection is established.
  6. Enhanced the overall stability of AFP file protocol.
  7. Minor bug fixes.

Limitation & Known Issues

  1. Time Backup package has to be updated to the latest version to run on this DSM version.
  2. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/03/08)

Change log:

  1. Fixed an issue where you may not be able connect to your DiskStation via Internet when Firewall is enabled and set as “Deny Access if no rules are matched”.
  2. Fixed an issue where the access to DiskStation share folders via CIFS protocol may be interrupted when DiskStation joins the LDAP service as client, and the account password is changed.
  3. Improved the stability of accessing external NTFS drives via CIFS protocol.
  4. Other minor fixes.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2012/03/06)

  • DSM 4.0 can only be applied to Synology DiskStation with DSM 3.0 and onward. Download DSM 3.0 at: Americas, Asia, Europe
  • Due to the hardware capability, DSM 4.0 will be the last DSM upgrade available for all x08-series DiskStations.
  • Due to the hardware capability, not all of the features of DSM 4.0 are available to all models; please see below for more information. If you would like to experience the full potential of DSM 4.0 or the future release of the DSM operating system, please consider upgrading the DiskStation to a newer one.

New Feature Highlights

  1. Cloud Station beta (Available in Package Center)

    • Cloud Station is a free package which offers a file-syncing solution on multiple computers that lets you bring your docs and multimedia anywhere and backup them easily.
    • 32 historical file versions are available for each synced file which helps you backup your important files automatically.
    • Recycle bin stored the deleted files for later retrieve if necessary.
    • Privilege control allows the selected users to use Cloud Station to control your network bandwidth.
    • Cloud Station client is now available on Windows XP, Windows Vista, and Windows 7, helping you to sync data between your computers and Synology DiskStation via the IP address or ezCloud ID.
    • Please refer to the release notes of Cloud Station for details.
  2. ezCloud Service:

    • ezCloud is a cloud service offering QuickConnect, DDNS, MyDS Center, and Push Notification to help you setup/access/manage Synology DiskStation easily.
    • QuickConnect offers ezCloud ID which allows you to connect your Synology DiskStation using Cloud Station client or DS file without setting up port forwarding rules on your router.
    • Customized ezCloud ID allows you to create your own ezCloud identity.
    • DDNS service is free and now provided by Synology offering you the flexibility to customize your own domain in the easiest way.
    • MyDS Center, a Synology membership service, is now up and running to serve the community at MyDS.Synology.com, you may check your Synology DiskStation status from anywhere via the heartbeat feature and receive the push notification in case of any unexpected shutdown.
    • Push Notification enables you to receive the important messages instantly from your Synology DiskStation via Windows Live Messenger, Skype, DS cam and DS finder for iPhone/iPad.
    • HTTPS connection from DS file is supported in QuickConnect service.
  3. Applications Modularization:
    Six previously built-in applications - Photo Station, Audio Station, Download Station, Media Server, iTunes Server, and Surveillance Station - are now modularized to be independent packages, and they can be installed or updated separately without interrupting services running on DSM.

  4. iSCSI LUN Backup:

    • Point-in-time backup technology is used to allow copy-on-write implementation. Space re-claim mechanism is added to take place for any 4GB zero-block to reduce the file size of total backup.
    • In addition to the local host, LUN can also be backed up to an attached external storage device, or onto another DiskStation via network.
    • Incremental backup is available after running the initial full backup.
  5. Desktop Widgets:
    Seven new widgets are now introduced onto DSM desktop – System Health, Resource Monitor, Scheduled Backup, Storage, Current Connections, System Logs and File Change Logs. You will get an overview of system status and monitor the activities of your Synology DiskStation right after the login.

  6. User Interface Enhancements with HTML 5 and CSS3 Transform:

    • Instant Preview allows you to take a quick peek of a running app on the task bar before you switch to it. (Internet Explorer is not supported)
    • Pilot View gives you one place to see and navigate every app running on your DSM with just one click. (Internet Explorer is not supported)
    • You can make groups of shortcuts on DSM 4.0 Desktop.
    • You can personalize the background of the login page in DSM 4.0.
  7. Application Portal:
    You can customize the alias or HTTP port for Audio Station, File Station, Surveillance Station or Download Station, meaning you may now skip the DSM login page for better privacy and offer an easier way to share these services with your friends.

  8. Antivirus Essential (Available in Package Center):

    • Antivirus Essential is a free and complete antivirus solution from Synology.
    • Scheduled virus scan is available to keep your DiskStation safe and secure in your network at all times.
    • Automatic virus definition update allows you to perform the virus scan always with the latest virus definition.
    • Scanning files on the remote folders are supported.
  9. File Station Enhancements:

    • The previous File Browser has now been integrated and renamed to File Station.
    • Windows ACL user interface is now integrated into DSM, so you can edit Windows ACL directly in File Station.
    • Sharable file links are now provided to allow DSM users to share files to others with these private file links, without creating DSM accounts for them.
    • Uploading or downloading multiple files and folders in a sequential order is now available. (Java running on the PC client is required)
    • Personal favorite is now added for quick access to your folders.
    • Instant cut, copy, and paste are now available to manage folders and files between your Synology DiskStation and local computer in File Station.
    • File or folder shortcut on DSM desktop is available by directly drag-and-drop from File Station.
    • The number for maximum files to upload is raised to 300.
  10. Surveillance Station 5 Enhancements:

    • Live View Analytics lets user track targets and record events intelligently in real time. Live View Analytics History also provides user the ability to view Live View statistics and playback incidents.
    • Evidence Integrity Authenticator tool enables users to verify the originality of Surveillance Station's recording or snapshot.
    • Fisheye camera is supported to view 360 degree panoramic view. Multiple regions or 180 degrees hemispheric images can be dewarpped from distorted fisheye image.
    • More than 1,000 IP cameras are supported and 200 new IP camera models are added from Samsung, Vivotek, ACTi, Trendnet, D-Link, and etc. Please refer to the here for the complete list.
    • In addition to e-mail and SMS, push notification supports DS cam, Windows Live Messenger, and Skype and can now be scheduled by individual camera or event type simultaneously.
    • Camera can now be added in batch from different models and brands, to help system integrators efficiently setup a multiple of cameras.
    • Surveillance Station is becoming fast and more responsive.
  11. Photo Station 5 Enhancements:

    • Uploading photos to Picasa Web Albums or Twitter is now supported with just a few clicks. You can upload multiple photos to Picasa Web Album at a time.
    • The new Detail Mode offers you an additional way to view the picture wall in the original aspect of photos along with their titles.
    • A new album, Blog Images, will be created when you share pictures on your blog. The photos shared on your blog will be copied to this public album.
    • Copying photos between albums is now supported for easy management.
  12. Download Station Enhancements:

    • Watched Folder allows you to save torrents or NZB files to the specified folder and download tasks will start automatically.
    • SFTP and FTPS are now supported (not available when downloading a directory).
  13. Media Indexing Service:

    • Media Server, Audio Station and iTunes Server can be configured to include additional indexed folders for media scanning.
    • All picture, audio and video collections can now be customized to be scanned in the 3 default multimedia folders. (music, video, and photo)
    • MPEG-4 video conversion is now supported for playback on mobile devices in Photo Station.
  14. VPN:
    VPN client is now available to allow you to securely access the resources shared within VPN server's local area network, over the Internet. VPN client supports both PPTP and OpenVPN protocol.

  15. Syslog:
    Syslog client is now added to report to your Syslog server, which centralizes logs in one place for easy management.
  16. VLAN support:

    • VLAN tagging is now supported on your DiskStation, which improves the manageability, and reduces hardware/administrative cost. Supporting VLAN also helps your DiskStation fit into your existing network infrastructure.
  17. Hotspot: (not available on all 08 series, DS109j, and DS209j)

    • Wireless access point is now supported by simply plugging a USB wireless dongle into your DiskStation. For the complete supported list, please see here.
  18. Connection Manager:
    A real-time connection list is now added to allow you to monitor who is accessing your data and kill the connections of unwanted users. It is supported in DSM, FTP, Samba, and AFP protocols, as well as shown as the widget on DSM desktop.

  19. Configuration Backup Enhancements:

    • Configuration backup is integrated with settings of Control Panel, providing easy migration and fast system recovery.
    • Scheduled system configuration backup is introduced to automatically backup the configurations on a weekly basis to reduce the side effects of the system rollback.
    • You can partially restore system configuration now.
  20. VMware vSphere 5.0 VAAI Support:
    Atomic Test & Set (ATS) supported to eliminate LUN-level locking based on SCSI reservations and improve data access performance.

  21. DHCP Server: (Available in Package Center)

    • DHCP Server supplies IP address to other computers over TCP/IP networks on multiple subnets. It can also be individually turned on/off for each network interface.
  22. SMART Test Scheduler:
    SMART test by schedule is now available to scan HDD for potential risks on a timely basis to prevent data crisis.

  23. Smart Remap:
    A new mechanism is in place to protect the degraded RAID from being crashed during the repairing process due to bad sectors.
  24. Improved NTFS Performance:
    data transfer rate between NTFS external disks and DiskStation can be 3.7 times as fast as DSM 3.2. The speed test result of writing data to the eSATA drive connected to DiskStation with NTFS partition is listed below:

    DiskStation / DSM version DSM 3.2 DSM 4.0 DS1512+ DS212+
    40.88 MB/s 110.66 MB/s
    15.36 MB/s 56.98 MB/s
  25. Improved Server Response Time (only available on DiskStation with 5 or more bays):
    Now it only takes 7 seconds for server to respond from HDD hibernation.

  26. FIPS 140-2 Compliant:
    Synology implementation of AES encryption has been validated by Crytographic Algorithm Validation Program (CAVP)
  27. Apple Routers Support:
    EZ-Internet now supports Apple routers - Airport Express, Airport Extreme, and Time Capsule by integrating NAT-PMP. Mac users can now publish their Synology DiskStation onto Internet with just a few clicks. Please refer here for supported router list.
  28. ARM Performance Improvements over iSCSI:
    iSCSI data transfer rate on ARM-based DiskStation with RAID 1 disk groups or data volumes is significantly improved by a maximum of 21%. The test result of iSCSI writing is listed below:

    DiskStation / DSM version DSM 3.2 DSM 4.0 DS212+ DS212
    85.94MB/s 96.55MB/s
    78.43MB/s 95.94MB/s
  29. DSM mobile Enhancements:
    Auto Block, User Groups management, Mounting/unmounting encrypted shared folders, running/stopping packages, iSCSI LUN monitor, and the complete resource monitor are now added.

  30. iPhone/iPad Apps Upgrade: (Available on Apple® App Store)

    • DS photo+: Supported photos and videos displayed on Apple® TV.
    • DS file: iCloud and QuickConnect is now integrated.
    • DS audio: The recently added albums are now available displayed as a playlist.
    • Push Notification is now implemented on DS finder and DS cam.
    • Login credential encryption will be supported even with HTTP connection. Your sensitive username and password data will be securely transferred when you use DS cam, DS audio and DS finder with DSM 4.0.
  31. Android Tablet Support: (Available on Android® Market)

    • Android Tablet support: DS file and DS photo+ are officially supported for devices with Android 3.1 or later. The user interface has been resigned for Android tablets.
    • Login credential encryption will be supported even with HTTP connection. Your sensitive username and password data will be securely transferred when you use DS cam, DS audio and DS finder with DSM 4.0.
    • Push Notification is now implemented on DS finder for Android.
  32. Windows Phone Support: (Coming soon on Windows Phone® Marketplace)

    • DS finder will soon be available for your Windows Phone for you to monitor your DiskStation and receive important system notification instantly.
  33. Kindle Fire support: (Available on Amazon® App Store): DS photo+, DS audio, DS cam, DS file and DS finder are now supported on Amazon Kindle Fire.

  34. The following packages are updated to support DSM 4.0: TimeBackup, VPN Server, Syslog Server, Directory Server, and HiDrive Backup.
  35. Upgraded Apache web server to 2.2.22, php module to 5.3.10 and openssl to 1.0.0g.
  36. Added 93 new wireless dongles including ABOCOM, ASUS, D-LINK and EDIMAX. For the complete supported list, please see here.

Limitation & Known Issues

  1. LUN backup does not support destinations in FAT, NTFS file system, or encrypted shared folder.

Special Notes

  1. Browser Support:

    • Internet Explorer 8, 9
    • Google Chrome
    • Firefox 3.6, 4-10 or later
    • Safari 5 (Mac)
  2. VPN client supports 1 active connection and up to 16 profiles.

  3. QuickConnect supports 2 active connections for each DiskStation.
  4. For CMS deployment on Surveillance Station, the DSM versions of Master and Slave must both be 4.0 backward for compatibility.
  5. Remote Folder and Virtual Drive cannot be mounted on subfolders in user home that contains “Cloud Station” in its folder’s name.

(2011/11/30)

Major Highlights

  1. Synology® ARM® Performance Acceleration Technology: Synology DiskStation now enters the next level in terms of performance. Data transfer rate on ARM-based DiskStation is significantly improved by a maximum of 18.8%. The test results are provided below:
Model Max. Upload Improvement
DS111 18.86%
DS110j 13.10%
DS212+ 16.78%
DS212 17.51%
DS212j 11.87%
DS411 14.37%
DS411j 9.04%
DS411slim 13.32%
RS812 11.19%
RS212 17.20%
Please refer to the [performance page](products/performance) for the details. Synology® ARM® Performance Acceleration Technology makes file transfer faster for the following models: 12-series: DS212, DS212+, DS212j, RS212, RS812 11-series: RS411, DS411, DS411j, DS411slim, DS211+, DS211, DS211j, DS111 10-series: DS410j, DS210j, DS110j 9-series: RS409, DS409, DS209, DS109, DS409slim

Improvements

  1. Enhanced the compatibility of iSCSI targets with VMware ESXi servers.
  2. Optimized system memory usage during storage and volume management.
  3. Enhanced Surveillance Station timeline playback in countries with daylight saving time.
  4. Enhanced Photo Station Blog draft saving mechanism.
  5. Other minor bug fixes.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/10/25)

Change log:

  1. Added 24 new IP camera models including Axis, D-Link, Forenix, Instar, Zavio, Foscam and Wision. For the complete supported camera list, please see here.
  2. Added an option in Photo Station 5 to enable/disable the photo sharing feature to social networks.
  3. Upgraded Apache server to 2.2.21.
  4. Enhanced the compatibility with non-English Windows ADS.
  5. Enhanced the compatibility with 3TB hard drives.
  6. Enhanced the security, speed, and stability of Photo Station 5.
  7. Enhanced the compatibility of Photo Station 5 with new Facebook APIs.
  8. Enhanced the compatibility of Google docs viewer in File Browser.
  9. Enhanced the compatibility of File Browser and File Station with Firefox 7.
  10. Enhanced the compatibility of CalDAV and AirPlay with iOS 5.
  11. Enhanced the stability of iTunes server.
  12. Enhanced the compatibility of Media Server with LG BD player, Samsung TV, and SONY BRAVIA TV.
  13. Enhanced the compatibility of Surveillance Station with Vivotek, ACTi, IQeye, TP-Link, Axis, Basler, HikVsion, Y-cam, Airlive and Compro cameras.
  14. Optimized system memory management when Surveillance Station 5 is running multiple channel live-views.
  15. Fixed an issue where you cannot log in Personal Photo Station with DS photo+ for Android mobile models.
  16. Fixed an issue about schedule recording for Surveillance Station 5.
  17. Other minor bug fixes.

Limitation & Known Issues

  1. To connect to CalDAV server on DiskStation with an iOS 5 device, change the setting to "Sync All Events" in "Settings > Mail, Contact, Calendars" on your iOS 5 device.
  2. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/09/06)

  • DSM 3.2 can only be applied to DiskStation with DSM 2.3 and onward. Download DSM 2.3 at: Americas, Asia, Europe
  • Not all of the features of DSM 3.2 are available to all models due to hardware limitation; please see below for more information. If you would like to experience the full potential of DSM 3.2 or the future coming release of the DSM operating system, please consider upgrading the DiskStation to a newer model.

New Features

  1. Directory Server: Directory Server is now available as a package without additional cost, providing an integrated account management service for DiskStations, Linux, and Mac clients.
  2. LDAP Client: LDAP client is now built in DSM to help IT personnel integrate LDAP users and groups without manually recreating user accounts all over again.
  3. Remote Folder: Remote Folder is now added to centralize many distributed CIFS file shares in your local network, that will help you navigate the network shares without having to know the physical server names or shared folders hosting the data.
  4. Virtual Drive: Virtual Drive is now newly added to help you mount ISO files from your hard disk or from a remote server and used in the same manner as placing them into a physical CD/DVD/Blu-ray drive.
  5. Syslog Server:
    • Syslog Server is now available as a package, which offers a centralized log management solution for storing all your logs from different servers/switches/routers or any syslog-enabled device over the network
    • Email notification system will keep you on track of all your servers’ status regardless of where you are.
  6. Mac OS X Lion Support:
    • The Netatalk package has been upgraded to 2.2 to enhance the compatibility with Mac file service (AFP) in the latest Mac OS X Lion.
    • Time Machine in Mac OS X Lion is tested and proven to be compatible.
  7. Photo Station 5:
    • The new Photo Station is redesigned to provide an easy-to-use and elegant user interface.
    • The new photo upload wizard has been reinvented to provide the option to create thumbnails which makes it even faster to display the uploaded pictures on Photo Station.
    • Facebook is now integrated to make it easier to share photos with your favorite social network website. One-way album synchronization is provided for you to upload photos from Photo Station to Facebook automatically.
    • Pixlr and Picnik are now integrated, which are powerful online image service that will enable admin to directly edit the pictures from the DiskStation on the fly without installing additional software.
    • Password protected album is now supported to help you share private albums with your friends more efficient without creating new accounts for them.
    • Personalized theme is available for you to customize your favorite theme.
    • Full-screen mode is now available in slideshow with brand new interface.
    • The user account in Photo Station can now be either set to synchronize with DSM’s or to the existing embedded Photo Station user accounts.
    • The blog editor now supports Google Chrome and comes with more features.
  8. Google Cloud Print: Google Cloud Print service is now supported to help you print to your home/office printers from any computer or smartphone without driver installation, regardless of where you are. For the complete list of supported printers, please see here.
  9. UPnP Router Support:
    • Automatic router discovery is now supported in EZ-Internet with UPnP-enabled routers, with just one-click to set up your router.
    • More than 58 routers from ASUS, Belkin, Cisco, TP-Link, SITECOM, and other brands are now supported. For the complete list of supported routers, please see here.
  10. DSM mobile:
    • DSM mobile, a dedicated Web-App for iOS and Android devices, is now introduced to provide easy DiskStation management from mobile devices.
    • You can now easily add and edit users, groups, shared folders or even access privileges right from your mobile device.
    • It is fast and intuitive to enable or disable services, view system information and monitor resource with DSM mobile using mobile devices.
  11. CalDAV Server: CalDAV is now supported to turn your DiskStation into a calendar server. All your CalDAV clients, including iCal in Mac OS X, iPhone, iPad, or Mozilla Sunbird will be synchronized without efforts.
  12. Package Center:
    • The brand new Package Center is a centralized place where you can find and install useful packages for your DiskStation.
    • Email notification is available as an option for new package updates.
    • The new visual style and improved user interface makes it simple and easy to identify, install and check updates online.
  13. Download Station Enhancements:
    • More file sharing and online video services with free or premium accounts are now supported, the supported services can also be manually updated online.
    • Download Station now supports drag-n-drop for uploading BT from Windows desktop.
    • BT now support single-port forwarding.
  14. Audio Station Enhancements:
    • FLAC music streaming is now possible with Airplay speakers.
    • A switch is now added to help you enable/disable auto UPnP renderer discovery for better performance in Audio Station.
  15. File Browser Enhancements:
    • Now you may upload files to DiskStation by simply drag-n-drop the selected files from Windows/Mac/Linux Desktop to File Browser.
    • Pixlr Editor, Express, and Picnik are now integrated, which are powerful online image service that will enable you to directly edit the pictures from your DiskStation on the fly without installing additional software.
    • You may now preview your favorite movies in the preferred aspect ratio.
  16. Surveillance Station 5 Enhancements:
    • Safari 5.1 (32-bit) in Mac OS is now supported in Surveillance Station, Mac users can now enjoy using Surveillance Station with same experience as of Windows environment.
    • All features can now work seamlessly across Internet Explorer, Chrome, and Firefox on Windows.
    • More than 90 IP camera models from Canon, Basler, Sony, Vivotek, Zavio, Hunt, Alinking, FlexWatch, Intellinet, InStar, Foscam, SMC, and Brickcom are newly supported. For the complete list of supported cameras, please see here.
    • The compatibility with ONVIF cameras from Sony, Axis, Vivotek, Panasonic, Hikvision and Lilin are now greatly enhanced.
    • 49 channels live view is now available for monitoring more cameras at once.
    • SMS/Email notification can now be scheduled by individual camera or event type simultaneously.
    • Camera Group is now added to help IT personnel efficiently apply settings to live view, event playback, or privileges in a large camera deployment.
    • Settings for multiple cameras with the same model can now be adjusted all at once using batch editing function; this is useful in a large camera deployment.
    • Privilege profile function is now added to help IT personnel quickly assign or modify multiple users’ camera privileges.
    • Surveillance Station can now conduct motion detection with MPEG4 and H.264 as well, you no longer need a camera with the built-in motion detection feature.
    • Single camera stream is now supported to reduce required bandwidth by half, freeing resource to other network applications and reduce camera loading for improved system stability.
    • Cameras of all codec types (MJPEG/MPEG4/H.264) can now use the same default DSM port 5000, simplifying the setup process for remote monitoring.
  17. iPhone/iPad App:
    • DS photo+ is now enhanced with multiple photos upload feature and the support of password protected album. Video streaming is also supported on Apple TV via AirPlay.
    • DS audio is now enhanced with Internet radio feature.
    • DS cam is now enhanced with the ability to live view single camera in MPEG4 and H.264 codec.
  18. Android App:
    • A new Android app, DS finder, will soon available for free download. DS finder helps you to easily monitor the status of your DiskStation while you are on the go, you can even start up the DiskStation remotely. MIS can also use it for locating the DiskStation in the massive server room with the built-in buzzer; In case of troubleshooting, MIS may also email out the DiskStation’s network/storage info directly from their Android phones.
    • DS cam is now enhanced with the ability to live view single camera in MPEG4 and H.264 codec.
    • DS audio is now enhanced with Internet radio feature.
  19. Media Server Enhancements:
    • You may now view the current thumbnail creation progress in control panel, and able to set the quality of thumbnails or even pause it for up to 6 hours and resume it later automatically.
    • Customized indexed folder is now supported to help you select which folders also containing multimedia to be indexed in media server.
    • You can now choose a device profile for your DLNA device to enhance the compatibility with your DiskStation.
  20. Synology Hybrid RAID (SHR) Enhancements: SHR volume can now be ready to use within minutes upon creation, 95% faster comparing to traditional SHR volume creation.

    DiskStation/DSM version DSM 3.1 DSM 3.2 DS211+ (2TB SHR volume) DS1010+ (8TB SHR volume)
    6 hrs 41 min 9 min
    9 hrs 36 min 28 min
  21. VPN Server Enhancements: Privilege control is now integrated to allow only the selected users to connect DiskStation with VPN clients.

  22. Shared Folder Sync Enhancements: Encrypted shared folder is now supported for maximum security.
  23. WordPress Package: WordPress Package is now available to help you to install WordPress on your DiskStation with just a few clicks.
  24. Management Enhancements:
    • Every DSM user may now choose their preferred language regardless of the default browser setting.
    • You will stay log-in until you log out DSM manually.
    • IT personnel may now easily view/manage all the DSM services from System Information.

Special Notes

  1. Browser Support:
    • Chrome
    • Firefox
    • Safari (Mac) 4, 5
    • Internet Explorer 7, 8, 9
  2. Remote Folder can support up to 100 mount points (network shared folders). Remote Folder currently supports CIFS only.
  3. Remote Folder currently supports CIFS only.
  4. Non-admin users can only mount Remote Folder under their “User Home”.
  5. Virtual Drive can support up to 16 mount points (ISO images).
  6. Virtual Drive supports ISO 9660 and UDF.
  7. The mount point for both Virtual Drive and Remote Server has to be an empty shared folder.
  8. Synology Hybrid RAID (SHR) enhancement only applies to SHR volume with two HDDs or more.
  9. Multiple camera view on DS cam does not support MPEG4/H.264.

Limitation & Known Issues

  1. LDAP client is currently not compatible with Windows domain, Microsoft exchange server, and IBM Lotus Domino LDAP Server.
  2. Remote Folder is currently not compatible with Mac Samba Server as a target.
  3. The password for the guest account in DiskStation has to be disabled if you wish connect the DiskStation from Mac OS X 10.7 with a guest account via samba.
  4. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/07/01)

Change log

  1. Fixed an issue where expanding the volume size may result in error.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/06/08)

New Features

  1. AirPlay Support: AirPlay support in Audio Station's Media Renderer mode allows you to stream music from your DiskStation to any AirPlay device which could be either a TV or stereo set in your living room.
  2. iOS Apps:
    • DS audio is now enhanced with media renderer support helps you remotely control the music playback from DiskStation to Airplay speakers or any compatible media renderer.
    • DS file is now enhanced with iPad-specific UI design.
    • DS photo+ is now enhanced with AirPrint support to print photos wirelessly.
  3. Android Apps: DS file allows you who own Android powered mobile devices to browse the files on your DiskStation via WebDAV, and download/upload files from/to your DiskStation. You can also manage – copy, move, rename or delete - your files while you are away from your office or home as long as the Internet connection is available, off-line browsing for your favorites is also supported in case of the unstable wireless connection.
  4. VPN Center Package: VPN Center is an add-on package that enables your DiskStation to become a VPN (virtual private network) server, allows DSM users over the Internet to access resources shared within DiskStation's local area network. VPN Center supports both PPTP and OpenVPN service.

Change log

  1. Enhanced the stability with Backup and Restore application: Shared Folder Sync, Amazon S3, local and network backup.
  2. Added new log information for rsync file transfer log.
  3. Enhanced the stability with rsync backup function.
  4. Enhanced the stability with AFP file sharing protocol.
  5. Enhanced the stability with Surveillance Station.
  6. Enhanced the stability with wireless connection.
  7. Minor bug fixes.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/04/11)

Change log

  1. Enhanced the stability with Shared Folder Sync application.
  2. Enhanced the stability with Backup and Restore application.
  3. Other minor bug fixes.

Limitation & Known Issues

  1. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/03/24)

Change log

  1. Enhanced the compatibility with Internet Explorer 9.
  2. Added a new option in backup and restore application to allow you to decide whether you would like to reduce the backup time by skipping metadata backup.
  3. Added a new option in backup and restore application to allow you manually designated the rsync mode.
  4. Support HTTPS / FTP / Magnet URLs in search function in Download Station.
  5. Enhanced the compatibility between File Browser and Java version 6 update 24.
  6. Enhanced the compatibility with DS file.
  7. Enhanced the handling of RSS link in HTTPS and FTP in Download Station.
  8. Enhanced the stability when backing up the encrypted share.
  9. Enhanced the samba attributes’ handling with hidden and read-only files in AFP.
  10. Fixed a calendar issue in Timeline in Surveillance Station.
  11. Fixed an issue where you can remove the comments without logging in to Photo Station.
  12. Fixed an issue where Download Station will lose the manually added BT trackers after restarting the DiskStation.

Limitation & Known Issues

  1. The destination server (DiskStation) in network backup has to run DSM 2.1 or onward.
  2. Refer to "Limitation & Known Issues for all versions" for other limitations.

(2011/03/03)

  • DSM 3.1 can only be applied to DiskStation with DSM 2.1 and onward. Download DSM 2.2-0942 at: Americas, Asia, Europe
  • Not all of the features of DSM 3.1 are available to all models due to hardware limitation; please see below for more information. If you would like to experience the full potential of DSM 3.1 or the future coming release of the DSM operating system, please consider upgrading the DiskStation to a newer model.

New Features

  1. Storage Manager

    • New and improved Storage Manager offers the flexibility of creating multiple volumes on single RAID, which can be a pooled space of one or multiple hard drives. Storage Manager allows you to manage your storage in a more flexible and efficient way across all available hard drives.
    • Create and expand the volume size at your wish as your application needs change without disruption.
    • Synology Hybrid RAID now offers two disks fault tolerance to ensure your data is always safe with your DiskStation.
    • iSNS support provides easy management and access for your iSCSI targets.
  2. Shared Folder Sync: Shared Folder Sync allows you easily sync the shared folders from one DiskStation to another. The sync can be triggered by the modification on the files, or you can schedule the sync task according to needs, and retain the mirror shared folders on the destination DiskStation.

  3. File Browser Enhancements:

    • You can now directly play the supported video via File Browser from any web browser as long as Internet connection is available.
    • You can now directly preview the supported photos via File Browser and set it as the desktop wallpaper at the same time.
    • You can now directly open and save the supported documents in Google doc.
    • You can now directly launch the Audio Station to play the music files in “music” share from the mouse right-click menu.
    • Advanced search is now available to offer you numerous options for making your searches more precise and getting more useful results.
    • The option to enable file indexing function is also available to increase the efficiency to return the search results.
  4. Multifunction Printer Support (available for Windows environment): Multifunction printer is now supported to allow the print/fax/scan functions on your multifunction printer to be shared among family members or colleagues over the same network. For the complete list of supported printers, please see here.

  5. AirPrint Support: AirPrint is now supported to allow you wirelessly print photos, email, web pages, and documents from your iPad/iPhone to any AirPrint-enabled printer connected to DiskStation. For the complete list of supported printers, please see here.
  6. Backup and Restore Enhancements:

    • Back up the same share to multiple destinations is now supported to allow you to keep multiple copies of the same share at different locations.
    • Windows ACL is now supported to allow you to restore the data alone with its complex privilege settings.
    • The DiskStation at backup destination can now be accessed by authorized users, your branch offices may now back up their files to their corporate center by using the private user account.
  7. Auto DSM Update: Auto DSM update is newly added to automatically check the latest DSM version available for your DiskStation, and allows you always update to the latest operating system upon your approval.

  8. Management Enhancements:

    • Administrator group is now support to allow multiple administrators help you manage the fast growing storage in your network, as well as the ease of managing different MIS accounts.
    • Password strength can now be applied to all user accounts to help protect your data, and personal information to provide a more secure environment.
    • Smart System Migration allows you to easily migrate your old hard drives from one DiskStation to another DiskStation with the same model in case of hardware failure.
    • Network user interface has been enhanced to provide easy management for multi-LAN.
  9. Mail Server: Mail server is now built inside the operating system, DiskStation Manager 3.1, providing POP3/IMAP and SMTP services, you may now manage your emails on your favorite email clients such as Microsoft Outlook or Mac’s Mail.

  10. Mail Station 2 Package:

    • The brand new Mail Station 2 package provides you the web mail service which allows your email communication to be more intuitive, efficient, and useful.
    • Multiple email accounts fetching is now supported to allow you to store all your emails at one central location.
    • Multiple SMTP servers are supported to allow you to choose different email account to be sent from in order to protect your privacy.
    • Personal contacts are now included to provide you with easy contact management.
  11. Download Station 3:

    • The new Download Station is redesigned to provide an easy-to-use and intuitive user interface.
    • BT search is now available with the new Download Station, you may now directly make your searches from your favorite download sources in Download Station and start downloading away.
    • BT files preview is now added to allow you to filter the files you want to download at the BT startup.
    • eMule download service is now available for non-admin users, and allows multi-users to own their personal download tasks.
    • RSS support is newly added to keep track of when your favorite site has been updated with new content and download it automatically.
    • A notification will be sent to DSM desktop when a download task has been completed.
    • A new button is added to allow you to start/resume or stop all your download tasks.
  12. Audio Station 3:

    • The new Audio Station is redesigned to provide an easy-to-use experience.
    • Mini player mode is now available with the new Audio Station, it offers only the core playback functions and nothing else. It allows you to manage your files or download tasks and still able to gain control of your Audio Station at the same time.
    • The equalizer function is available with the USB mode in Audio Station. With just a few simple clicks, you can use the equalizer in Audio Station to customize your listening experience.
    • The personal playlist is now available to your family members and your friends who have access to your Audio Station. They can easily keep their favorite music playlist of their own on your Audio Station without sharing it to anyone else.
    • ID3 tag editor is now added to allow you to modify one or more songs’ information at the same time, such as artist, album name, or title of the song.
  13. Photo Station Enhancements:

    • DiskStation is now open to host multiple Photo Stations. Your family members or closed friends may host their own Photo Station on your DiskStation and share it with their own group of friends.
    • Social network is now featured in Photo Station, you can easily share the link of your photo album onto your Facebook, Twitter, or Plurk.
    • Now you can manage your videos or photos directly in Photo Station. You can move or remove the photos/videos immediately in Photo Station user interface, and able to preview them right away.
  14. Surveillance Station Enhancements:

    • 89 more IP camera models from Panasonic, Arecont, ACTi, Vivotek, Linksys, Zavio, Flexwatch, Messoa and Y-cam are newly supported. For the complete list of supported IP cameras, please see here.
    • Smart Search now features general motion, foreign object, missing object, camera occlusion, and focus lost to make your video searches more precise and getting more useful results. (Available on Internet Explorer only)
    • Image enhancement control is added to the recorded events to adjust various visual elements for more customized viewing experience. (Available on Internet Explorer only)
    • Surveillance Station is now supported in Internet Explorer, Firefox, and Chrome to provide more interoperability with popular platforms on the market to meet the needs of diverse users.
    • Import and export IP camera configuration is now supported for easy setup migration, as well as simple maintenance.
    • HTTPS is now supported to provide a more secure way to live view your IP cameras while you are away. (Available on Internet Explorer only)
    • Live view can now be viewed with the original aspect ratio which reduces image distortion and maintains intended quality.
    • Customizable landing page location allows all Surveillance Station spectators and managers to choose the default page when they login.
  15. iPhone App:

    • A new iPhone app, DS file, is now available on Apple® App Store for free download. DS file allows you who own an iPhone/iPod touch to browse the files on your DiskStation via WebDAV, and download/upload files from/to your DiskStation. You can also manage – copy, move, rename or delete - your files while you are away from your office or home as long as the Internet connection is available, off-line browsing for your favorites is also supported in case of the unstable wireless connection.
  16. iPad App:

    • DS photo+ is now enhanced with HTTPS support and the new and improved user interface has utilized the large screen on iPad to provide a more intuitive hands-on experience.
    • DS audio is now enhanced with HTTPS support and the new and improved user interface has utilized the large screen on iPad to provide the 100% iPad user experience. It can now also stream music directly to Apple TV in the same local network.
    • DS cam's user interface has been completely redesigned for iPad. Information display is now more intuitive via menu style controls, for viewing while browsing at the same time. More advanced filtering modes are also available for locating the events more efficiently.
  17. EZ-Internet Router Supporti: More than 40 router models from Netgear, Buffalo, TP-Link, Trendnet, and other brands are now supported. For the complete list of supported routers, please see here.

  18. Samba/CIFS Access Log: The access log for Windows file transfer is now added to allow you to monitor the history of file transferring in Samba/CIFS.
  19. The NUT package has been upgraded to 2.6.0 to provide more support for UPS. For the complete list of supported UPS, please see here.

New Features on Synology Assistant 3.1-1593

  1. Background mode is now supported to allow you to easily manage the connection status of your multifunction printer.

Change log on Data Replicator 3 (v147)

  1. Enhance the connection stability between the client computer and DiskStation.

(i) Some routers and ISPs may not be supported. Check the supported router list in the Special Notes.

Special Notes

  1. Browser Support:

    • Chrome 8
    • Firefox 3.6
    • Safari 4, 5 (Mac)
    • Internet Explorer 7, 8
  2. The encrypted share is not supported in the shared folder sync function.

  3. The maximum number of Share Folder Sync task for different DiskStations is set as below:

    • 8 Sync Tasks: DS1511+, DS411+, DS1010+, RS810+, RS810RP+, DS710+
    • 4 Sync Tasks: DS211+, DS210+, DS110+, DS509+, RS409+, RS409RP+, DS409+, DS209+II, DS209+, DS109+
    • 2 Sync Tasks: RS411, DS411j, DS411slim, DS211, DS211j, DS111, DS410, DS410j, DS210j, DS110j, RS409, DS409, DS209, DS109, DS409slim, RS408, RS408-RP, DS508, DS408
  4. The maximum volumes can be created on DiskStation is set as below:

    • 512 Volumes: DS1511+, DS411+, DS1010+, RS810+, RS810RP+
    • 256 Volumes: DS710+, DS509+, RS409+, RS409RP+
    • 128 Volumes: DS211+, DS410, DS210+, DS409+, DS209+II, DS209+
    • 64 Volumes: RS411, DS411slim, DS211, RS409, DS409, DS209
    • 32 Volumes: DS411j, DS211j, DS410j, DS210j, DS409slim
    • 16 Volumes: DS209j, and all other x07-series and x08-series DiskStations with 2-bays or more.
  5. Telnet/SSH services can only be accessed by the “admin” account.

  6. To enhance your video playing experience in File Browser, it is recommended to install VLC player on your computer and the VLC browser plug-in. However, please note File browser will not enable the VLC plug-in in Safari (Mac version) and Chrome (Windows version).
  7. After upgrading to DSM 3.1, it is required to upgrade the Mail Station to Mail Station 2 package.
  8. After upgrading to DSM 3.1, the system will automatically generate one 1280x1280 thumbnail for all photos in “photo” shared folder. This thumbnail is for iPad review usage.
  9. After upgrading to DSM 3.1, the system will automatically rename your user group to “administrators1” if “administrators” is found.
  10. After upgrading to DSM 3.1, all multimedia files in “photo”, “music” and “video” share will be re-indexed.
  11. After upgrading to DSM 3.1, all your active download tasks will be re-verified (hash check).

Limitation & Known Issues

  • The maximum volume size for DS509+, RS409+, and RS409RP+ with expansion units is 16TB due to 32bit operating system.

(2010/11/09)

Change log

  1. N/A. (This is the initial release of DS211)


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