Release Notes for DS411

Important notes

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to update it manually.
   • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
   • Your DSM is working fine without having to update. The system evaluates service statuses and system settings to determine whether it needs to update to this version.
2. This update will restart the device.
3. To enhance product security, the following packages will require a manual update after this release. Please go to the Package Center and click Repair to install the latest versions:
   • Synology Drive Server 3.0.4-12699
     • Note: After repairing Synology Drive Server, Synology Office will not auto-enable. Please go to Package Center > Synology Office and click Run.
   • Replication Service 1.0.12-0066

Fixed Issues

1. Fixed multiple security vulnerabilities (Synology-SA-24:02).
2. Fixed multiple security vulnerabilities (Synology-SA-24:01).
3. Fixed multiple security vulnerabilities (Synology-SA-23:05).
4. Fixed security vulnerabilities regarding netatalk (CVE-2024-38439, CVE-2024-38440, CVE-2024-38441).
5. Fixed a security vulnerability regarding Terrapin Attack (CVE-2023-48795).
6. Fixed a security vulnerability (Synology-SA-24:20).

Important notes

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to update it manually.
   • Your DSM is working fine without having to update. The system evaluates service statuses and system settings to determine whether it needs to update to this version.
2. Depending on your Synology NAS model, this update will restart the device.
3. AAC-encoded content can be decoded and natively played back by most end devices, such as smartphones, tablets, computers, and smart TVs. Server-side transcoding of AAC-encoded content has been a redundant and resource-consuming process that was removed in DSM 6 starting from this version.
4. For the following packages to be available after this update, users must go to the Package Center and click Repair to install the latest version:
   • Advanced Media Extension 1.0.2-0039
   • Audio Station 6.5.7-3383
   • Media Server 1.8.5-2902
   • Video Station 2.5.1-1668
5. Moments and Photo Station will resume working once Advanced Media Extension is updated to the latest version.

Compatibility & Installation

1. The following drives will be updated automatically to the latest firmware version to fix an unexpected issue that may occur during repair or other read/write operations: HAT5300-4T (firmware version 1401 and 1402), HAT5300-16T (firmware version 1401), HAT5310-8T (firmware version 1401), and HAS5300-16T (firmware version 1401).

What’s New

1. When users select Outlook as the system notification service provider, they will need to sign in with OAuth 2.0, which is a safer authentication method. Previously configured Outlook accounts will be migrated to "Custom SMTP server". We strongly recommend re-configuring the settings for authentication to ensure your Outlook account security.

Fixed Issues

1. Fixed an issue where files shared via SMB may not be discoverable through macOS Ventura's Spotlight search.
2. Fixed an issue where files shared via AFP may not be discoverable through macOS Ventura's Spotlight search.
3. Fixed an issue where a Synology NAS running DSM 7.2 may be unable to update its domain database after syncing data from a domain controller running DSM 6.2.4.
4. Fixed a security vulnerability (Synology-SA-22:23).

Important Note

1. The update is expected to be available in all regions shortly, while the time of release in each region vary slightly. If you want to update your DSM to this version now, please click here.
2. Only Synology NAS with DSM 6.2.4 installed can be updated to this version.

Fixed Issues

1. Fixed multiple security vulnerabilities regarding Netatalk (Synology-SA-22:06).

Important Note

1. The update is expected to be available in all regions shortly, while the time of release in each region vary slightly. If you want to update your DSM to this version now, please click here.
2. Only Synology NAS with DSM 6.2.4 installed can be updated to this version.

Fixed Issues

1. Fixed an issue where users couldn’t add Google or Outlook accounts at Personal > Email Delivery.
2. Fixed an issue where sending a test email would fail if users selected Outlook as the service provider.
3. Fixed multiple security vulnerabilities. (Synology-SA-22:03)
4. Fixed an issue where filters might not work when users edit domain user or group privileges at Control Panel > Application Privileges.
5. Fixed an issue where Avid Pro Tools couldn't save files via SMB.

Important Note

1. The update is expected to be available in all regions shortly, while the time of release in each region vary slightly. If you want to update your DSM to this version now, please click here.
2. Only Synology NAS with DSM 6.2.4 installed can be updated to this version.

Fixed Issues

1. Fixed a security vulnerability regarding Samba (Synology-SA-22:02).

Important Note

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to manually update it. Only Synology NAS with DSM 6.2.4 installed can be updated to this version.
   • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Fixed an issue where package logs weren't rotated after a switchover was performed on SA3200D.
2. Fixed an issue where Synology Account might be signed out unexpectedly.
3. Updated the renewal rule of the built-in certificate to prevent DSM connection errors.
4. Fixed an issue where users couldn't expand a RAID 1 storage pool on the active server in a Synology High Availability cluster when the active server's RAID 1 storage pool is smaller than the one on the passive server.
5. Fixed multiple security vulnerabilities. (Synology-SA-22:01)

Important Note

1. DSM 6.2.4-25556-2 is updated on September 1 to fix the issues below.
   • Fixed an issue where the Synology Account sign-in status at Control Panel > QuickConnect was incorrectly shown as not signed in.
   • Fixed an issue where exFAT Access package installation might fail.
   • Fixed an issue where users couldn't use SSH transfer encryption for Shared Folder Sync tasks.
   • Fixed an issue where Active Insight might not be able to automatically collect and transfer diagnostic data when users submitted technical support forms.
2. Disables the "Shut down UPS when the system enters Safe Mode" option by default.
3. Audio Station must be updated to version 6.5.6-3377 or above to be compatible with this update.
4. Media Server must be updated to version 1.8.1-2876 or above to be compatible with this update.
5. Surveillance Station must be updated to version 8.2.9-6459 or above to be compatible with this update.
6. Virtual Machine Manager must be updated to version 2.4.1-9259.

What's New

1. Added support for Synology Active Insight, which provides an option for automatic delivery of diagnostic data to Synology Technical Support upon submission of a support ticket for a faster troubleshooting process. This option is configurable at DSM > Support Center.
2. Added log entries for drive removal.

Fixed Issues

1. Fixed an issue where the domain group list wasn't updated correctly.
2. Fixed an issue where administrator users couldn't sign in to DSM after they reset their password by pressing the RESET button.
3. Fixed an issue where all input fields across DSM were auto-filled with DSM account name if users had had Google Chrome remember their password with the Autofill function.
4. Fixed an issue where Finder might stop responding when users search for content within mounted folders on macOS Big Sur 11.1 and 11.2.
5. Fixed an issue where after users updated to DSM 6.2.4, iSCSI targets mapped with LUNs created on DSM 6.0 and before became offline and couldn't be enabled.
6. Fixed an issue where signing in via 2-step verification generated an extra log entry.
7. Fixed an issue where deleted files from the home folder couldn't be found in the recycle bin if deleted via SMB.
8. Fixed an issue where there is a slight possibility that the SMB service might be shortly disconnected the moment users apply SMB setting modifications.
9. Fixed an issue where backing up data on Windows using Windows Server Backup or other third-party software to Synology NAS might fail after users updated their Windows with updates released since April 2021.
10. Updated the OpenSSL setting in response to new rules of Let's Encrypt certificates.
11. Fixed an issue where there might be an incorrect IP conflict message for VLANs.
12. Fixed an issue where DHCP settings of one network interface might be wrongly applied to another interface whose DHCP settings hadn't been enabled.
13. Fixed an issue where CMS-managed servers might disconnect from a CMS Host that has been updated to DSM 6.2.4.
14. Adjusted the LED indicator behavior for drive hibernation and deep sleep, making the LED status easier to distinguish on the following 15-series and 16-series models: DS916+, DS716+II, DS716+, DS416, DS416play, DS415+, DS415play, DS216+II, DS216+.
15. Fixed an issue where the UPS server might not function properly after the system reboot.
16. Refines the description for abnormal S.M.A.R.T test results and specifies the problematic S.M.A.R.T attributes.
17. Fixed an issue where the system might not obtain the compatibility information of hot-swapped drives on expansion units.
18. Fixed an issue where Western Digital hard drives couldn't be detected upon bootup on the following models: RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs, DS3617xsII, DS3617xs.
19. Fixed an issue where the fan couldn't resume in full speed mode after a system reboot on models with the V1000 platform.
20. Fixed an issue where memory module error messages weren't displayed properly.
21. Enhanced the system performance when there is a large number of concurrent connections.
22. Fixed an issue where when the "Get user/group lists with NT4-compatible mode" option is enabled, domain users might not be able to sign in to Synology Contacts.
23. Fixed an issue where 15-series and newer models couldn't hibernate when there is a system error, such as a storage issue and hardware malfunction.
24. Adjusted the fan speed on SA3400 and SA3600 to fix a potential overheating issue when E10G18-T2 is installed.
25. Fixed an issue where users couldn't expand the LUNs on ext4 volumes that are already mapped to iSCSI Targets.
26. Adjusted the fan speed to fix a potential overheating issue when a Synology network interface card (E10G18-T1, E10G18-T2, E10M20-T1, E10G21-F2, E25G20-F2) is used as the Heartbeat connection in an SHA cluster or for Open vSwitch.
27. Fixed an issue where the system couldn't retrieve the full name of domain groups correctly after users click "Update domain data".
28. Fixed an issue where the status of domain users couldn't be displayed properly when the status is "lockout".
29. Fixed multiple security vulnerabilities regarding Samba (CVE-2020-14318, CVE-2020-14323, CVE-2020-14383, CVE-2020-27840, CVE-2021-20277).
30. Fixed multiple security vulnerabilities. (Synology-SA-21:22)

Important Note

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to manually update it.
   • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update includes fixes to the below issues mentioned in 6.2.4-25554.
   • Fixed an issue where external hard drives couldn't wake from hibernation on certain platforms (Grantley, Broadwell, Broadwellnk, Purley).
   • Fixed an issue where users could not sign in to Synology mobile apps after they had cleared the remembered device list in DSM 6.2.4.
3. This update will restart your Synology NAS.
4. Integrates the beep control options for degraded/crashed volumes and abnormal SSD caches.
5. The new LED indicator behavior makes the system status easier to distinguish on 15-series and newer models. (Learn more)
6. DNS Server must be updated to version 2.2.3-5028 or above to be compatible with this update.
7. LDAP Server must be updated to version 2.4.49-2515 or above to be compatible with this update.

Compatibility & Installation

1. Enhanced the password policy. Passwords must exclude usernames and descriptions, include both upper-case and lower-case letters as well as numerical digits. The minimum password length is 8 characters.
2. Fixed a compatibility issue between the Geminilake platform and virtual machines running Windows 10.
3. On a newly installed version of DSM, file rename and deletion log events for SMB will be enabled by default.

What's New

1. Users can now set 10 email addresses to receive system notifications.
2. Enhanced domain database synchronization performance by syncing only altered data.
3. Supports bad block detection on Synology SSDs.
4. Supports the updating of Synology HDD and SSD firmware directly via DSM.
5. Improved fan speed control based on the Synology network interface card temperature for 19-series and newer models.

Fixed Issues

1. Fixed an issue where the "Enable Web Assistant" option didn't work on NVR216 and NVR1218.
2. Fixed an issue where the date and time formats for scheduled tasks were inconsistent in the widget and system settings.
3. Fixed an issue where scheduled tasks may fail to be executed or modified.
4. Fixed an issue where tasks scheduled at a high frequency generated a lot of logs and occupied system partitions.
5. Fixed an issue where the custom welcome text may differ on the preview and actual login page due to character limits.
6. Fixed an issue where data could still be written to LUNs after the volume runs out of space.
7. Fixed an issue where if Wi-Fi dongles are installed, some available network interfaces weren't listed when users edit iSCSI targets.
8. Fixed an issue where iSCSI services may be unstable when the host is too busy or when users disable iSCSI targets and ending sessions simultaneously.
9. Fixed an issue where initiators couldn't connect to the iSCSI target after ethernet interfaces reconnect in a high-availability cluster.
10. Fixed an issue where packages may not operate properly when drives migrated from another Synology NAS cause volume ID conflicts.
11. Fixed an issue where users may not be able to find their Synology NAS in My Network Places on Windows when WS-Discovery isn't operating properly.
12. Fixed an issue where Log Center didn't record recycle bin enabling/disabling events.
13. Fixed a security vulnerability regarding Sudo. (Synology-SA-21:02)
14. Fixed multiple security vulnerabilities. (Synology-SA-21:03)

Limitations

1. In response to the enhancement of domain database synchronization efficiency, the domain user/group list will be updated once an hour when it is created with Synology Directory Server.

Important Note

1. This update is recalled on March 8, 2021, because of an issue where external hard drives couldn't wake from hibernation on certain platforms (Grantley, Broadwell, Broadwellnk, Purley). The issue is fixed in version 6.2.4-25556.

Important Note

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to manually update it. Only Synology NAS with DSM 6.2.3 installed can be updated to this version.
   • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Compatibility & Installation

1. Photo Station must be updated to version 6.8.14-3501 or above to be compatible with this update.

What's New

1. Enhanced NFSv4 connection stability.
2. Increased the maximum number of IP camera channels on FS6400 to 150.

Fixed Issues

1. Fixed an issue where support ticket submissions might fail in a certain version of Google Chrome.
2. Fixed an issue where Windows 10, version 2004 virtual machines might fail to power on when users select UEFI as the firmware.
3. Fixed an issue where there might be network disconnections on Virtual DSM.
4. Enhanced the stability of SSD caches when multiple processes are accessing the same cache at the same time.
5. Fixed an issue where CMS managed servers might not connect to the CMS host after they restarted.
6. Fixed an issue where disks in Resource Monitor performance charts were not displayed in the correct sequence. Affected models include:
   • 21-series: DS1621+
   • 20-series: FS6400, DS1520+, DS920+, DS720+, DS420+, DS220+
7. Fixed an issue where when users access files on DSM using Windows software via SMB, system performance might be affected. This is because of Windows software's continuous attempts to access the shared folders to which it has no permissions.
8. Fixed an issue where Windows File Explorer might not update file deletion or removal in real time when folders are mounted via SMB.
9. Fixed an issue where the system might not report the power status correctly on SA3200D.
10. Fixed an issue where the setting pages after first-time DSM installation might not launch on Synology NAS models with multiple LAN ports.
11. Fixed an issue where users were not able to empty the recycle bin of the "usbshare" shared folder.
12. Fixed an issue where administrators were not able to change the "User must change password at next logon" setting via Windows RSAT.
13. Fixed an issue where domain users could not be added to built-in groups via Windows RSAT.
14. Fixed an issue where enabling the "Collect debug logs" option for SMB might result in excessive system space usage.
15. Fixed an issue where the system might send incorrect port forwarding notifications after a restart.
16. Fixed an issue where SHA-1 certificates might disappear when users click "Upgrade certificate".
17. Fixed an issue where DSM might block users' IP addresses and create excessive logs when they tried to sign in after re-installing DSM.
18. Fixed an issue where incorrect drive compatibility information was displayed after drive migration.
19. Enhanced the stability of network interface cards on certain models.
20. Fixed an issue where links in password reset emails did not work when the URLs exceed the maximum length.
21. Fixed an issue where packages did not update automatically due to dependency problems.
22. Enhanced SAS controller stability during system shutdowns.
23. Fixed multiple security vulnerabilities. (Synology-SA-20:26)
24. Supports Let's Encrypt ISRG certificates.

Important Note

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to manually update it. Only Synology NAS with DSM 6.2.3 installed can be updated to this version.
   • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

What's New

1. Added support for Synology Expansion Unit FX2421.

Fixed Issues

1. Fixed the issue where a DS920+ or DS720+ might not enter hibernation when its connected expansion unit has entered deep sleep.
2. Fixed the issue where drive status LED indicators on a connected expansion unit might not work properly when the expansion unit wakes up from deep sleep.
3. Fixed the issue where daylight saving time might not display correctly in certain time zones (e.g., Dublin, Casablanca).
4. Fixed the issue where mounted remote shared folders on a Synology NAS may cause volumes to operate improperly or the Synology NAS unable to shut down in certain scenarios.
5. Fixed the issue where the system might incorrectly prompt "drive slot disabled” notice when a DS413 or DS213+ wakes up from deep sleep.
6. Enhanced the performance in writing a large number of files to a Btrfs volume with RAID 1 configuration using hard disk drives (HDD).
7. Fixed the issue where Synology Universal Search and Synology Drive might consume excessive CPU resources when the option "Utilize unused memory as database cache to improve (search) performance" has been enabled.
8. Fixed the issue where domain-related services might not resume working because the update of domain data could not be complete.
9. Fixed security vulnerabilities (Synology-SA-20:18).
10. Fixed the issue where the system might incorrectly prompt IP address conflict warning if a network interface card is attached to Synology NAS and the option "Reply to ARP requests if the target IP address is a local address configured on the incoming interface" is disabled.
11. Fixed the issue where the status of an Ethernet port might not be detected properly when the Ethernet port is not connected to a network cable while Open vSwitch has been enabled.

Important Note

1. Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to manually update it. Only Synology NAS with DSM 6.2.3 installed can be updated to this version.
   • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
   • The update is not required for your Synology NAS. Synology NAS will automatically run a checklist, which checks the services and system configurations, to determine whether this update is required.

Fixed Issues

1. Fixed the issue where Storage Manager might display an incorrect warning when the size of a storage pool is over 16 TB on certain 32-bit models.

Important Note

1. The update is expected to be available for all regions within the next few weeks, although the time of release in each region may vary slightly. If you want to update to the latest version now, please go to Download Center and manually update your DSM.
2. This update includes fixes to the below issues mentioned in 6.2.3-25423.
   • Fixed the issue where the automatic mounting of encrypted shared folders might result in the loss of indexing rules and the failure of the search function.
   • Fixed the issue where the Synology NAS equipped with NVMe device might be woken up from hibernation by the update of NVMe device's health status cache.
3. This update will restart your Synology NAS.
4. Removed the support for Google Cloud Print in DSM 6.2.3 and above.
5. To avoid the interruption of iSCSI service, the automatic DSM update and your power schedule to shut down may not be executed as expected if there are any active iSCSI sessions.
6. Removed TWNIC from the list of DDNS service providers on DSM 6.2.3 since TWNIC will stop accepting new registrations for DSM as of Jul. 1, 2020. Your current TWNIC DDNS services can still be used and edited but will not be available again once deleted from DSM.
7. This is the last major DSM version (6.2) that supports the video conversion to .flv and MPEG-4 Part 2 on certain models (RS814, RS214, DS414, DS414slim, DS414j, DS216se, DS215j, DS214+, DS214, DS214se, DS213j, DS120j, DS119j, DS115, DS115j, and DS114) in consideration of the termination of Adobe's support for Flash Player by the end of 2020.

What's New in DSM 6.2.3

1. Thin Provisioning LUN will become protected upon insufficient volume space, preventing clients from writing data to the LUN while allowing read-only access to the existing data.
2. Added support for domain users to sign in to DSM using a UPN (user principal name) via file protocols (including SMB, AFP, FTP, and WebDAV).
3. Added support for the option of forcing password changes for importing local users.
4. Enhanced the compatibility of the imported user list, providing clearer error messages when the imported file contains syntax errors.
5. Added support to record only the events of SMB transfer selected by the user, providing transfer logs that meet the requirements more closely.
6. Added support for client users to monitor the changes of subdirectories under shared folders via SMB protocol.
7. Added details of desktop notifications to facilitate users' timely responses.
8. Added support for external UDF file system devices.
9. Added support for the Open vSwitch option in a high-availability cluster.
10. Added support for IP conflict detection, providing logs and notifications accordingly.
11. Added support for Let's Encrypt wildcard certificates for Synology DDNS.
12. Added support to waive the need of DSM login again through an HTTPS connection after a change in client's IP address.
13. Added support for hardware-assisted locking for Thick Provisioning LUN on an ext4 volume.
14. Added support for customized footer message on DSM login pages.

Fixed Issues

1. Fixed the issue where certain cities might be mapped to incorrect time zones.
2. Fixed the issue where LDAP users could not be notified of the upcoming password expiration.
3. Fixed the issue where the upload of LDAP certificate could not overwrite the original one with the same file name.
4. Fixed the issue where the application permissions settings might not be applied properly to the Domain Users group when such group in Windows AD domain was named other than "Domain Users".
5. Fixed the issue of inaccurate time of usage history in Resource Monitor.
6. Improved system responsiveness by reducing the latency of the Btrfs file system in certain scenarios.
7. Fixed the issue where SNMP did not provide the indices of Disk and RAID correctly.
8. Fixed the issue where the recycle bin of an encrypted shared folder might not be emptied properly.
9. Enhanced the DSM login performance for multiple concurrent logins.
10. Adjusted the personal notification mechanism to comply with the latest Gmail API.
11. Fixed the issue where the iSCSI service might be interrupted when the LUN backup task is stopped.
12. Removed the function of expanding the capacity of a block LUN.
13. Fixed security vulnerabilities (Synology-SA-19:33, Synology-SA-19:35, Synology-SA-19:37, Synology-SA-20:06, Synology-SA-20:18).

Known Issues & Limitations

1. Due to Apple's new security requirements for trusted certificates, after a DSM update from an older version, the access to DSM via HTTPS using Google Chrome on a client device running macOS 10.15 might fail because of a certificate error. You may renew the default certificate on the Synology NAS to resolve this issue.
2. To run Centralized Management System (CMS) on Surveillance Station after updating to DSM 6.2.3-25426, Surveillance Station 8.2.7 or above is required.

Important Note

1. This update has been recalled on May 13, since the automatic mounting of encrypted shared folders might result in the loss of indexing rules and the failure of the search function. The issue has been fixed in 6.2.3-25426.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Fixed the issue where the LED indicators on the drive slots of DS118, DS218, DS218play, DS418, DS418j, and RS819 might not work properly.
2. Fixed the issue where the certificate might not work properly when the renewal has failed.
3. Fixed the issue where manually renewed certificates may not be applied to certain services.
4. Fixed a security vulnerability regarding Net-SNMP (CVE-2018-18066).
5. Fixed multiple security vulnerabilities regarding Nginx (Synology-SA-19:33).
6. Fixed multiple security vulnerabilities (Synology-SA-19:37).

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

What's New

1. Updated the protocol of Let's Encrypt to ACME V2 to enhance the stability of the registration process.

Fixed Issues

1. Fixed the issue where the system might be unable to install a package during first time installation.
2. Fixed the issue where shared folders could not be accessed via the SMB protocol if the smb.conf file was manually modified for Final Cut Pro X.
3. Improved the performance of the SMB protocol by reducing CPU usage when Synology NAS joins a domain.
4. Fixed the issue where Integrated Windows Authentication (IWA) might not work again if the protocol has been disabled before.
5. Fixed the issue where the LED indicators on the drive slots of RS4017xs+ and RS2818RP+ might not work properly.
6. Adjusted the notification mechanism to comply with the latest Gmail API.
7. Fixed the issue where duplicate entries of the same login event might be recorded at Log Center.
8. Fixed the issue where applying non-default date formats at personal settings might result in additional date information being displayed.
9. Fixed the issue where adding a Synology NAS to CMS host might result in a frozen "Checking" status and the device would not be added successfully.
10. Fixed the issue where the storage capacity of a volume could not be expanded after it was migrated to a new Synology NAS with its corresponding SSD cache.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.
3. In response to Gmail API changes, your DSM needs an update to this version to continue the functionality of sending notifications via Gmail. If you wish to skip this update, or if your Synology product model is not eligible to update to DSM 6.2, please refer to the following article which will guide you through the manual configuration: How to use Gmail SMTP server to send emails for DSM

What's New

1. Optimized the repair mechanism of RAID 6.
2. Enhanced the stability of Btrfs file system.
3. Enhanced the performance of the scheduled task to automatically empty the recycle bin.

Fixed Issues

1. Adjusted Gmail notification authentication mechanism to comply with the new Gmail API.
2. Fixed the issue where the public sharing link function might not work properly.
3. Fixed several issues which might result from the defective NVMe SSDs, such as system startup failure.
4. Fixed the issue where Google Chrome might autofill usernames and passwords into incorrect fields.
5. Fixed the issue where the encrypted shared folders could not be accessed under certain conditions.
6. Fixed the issue where the encrypted shared folders could not be mounted properly after system startup.
7. Fixed the issue where, after the restart of Synology NAS or the configuration of Synology High Availability, the domain service powered by Directory Server for Windows Domain might not work properly.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Fixed an issue where available DSM updates may not be displayed in Control Panel and Notification.
2. Fixed an issue where domain users may not be able to change their passwords when logging in through DSM.
3. Fixed an issue where joining DSM to LDAP server might fail.
4. Fixed an issue where accessing a path with special characters after enabling Mac special characters feature may result in permission error.
5. Fixed an issue where some packages' functions might fail due to file permissions being reset by Package Center.
6. Enhanced the stability of Btrfs file system under certain high I/O loading conditions.
7. Fixed an issue where there's a small chance that UPS might be disabled after rebooting.
8. Fixed an issue where reconnecting via CIFS in File Station might fail under unstable connection environment.
9. Changed the default option for system date and time format settings to YYYY-MM-dd and HH:mm respectively.
10. Fixed a security vulnerability regarding Samba (Synology-SA-19:23).
11. Fixed a security vulnerability regarding libxslt (CVE-2019-11068).

Important Note

1. This update was re-released on Apr. 29 to fine-tune certain functionality and usability.
2. The update is expected to be available for all regions within the next few weeks, although the time of release in each region may vary slightly.
3. This update will restart your Synology NAS.

What's New in DSM 6.2.2

1. Added the new Smart Update function and adjusted the update mechanism of DSM.
2. IHM now supports 14TB IronWolf and IronWolf Pro drives.
3. Added firmware update function of SAS controller on certain SAS models.
4. Added knowledge base article recommendations in the Support Center to help users with easy troubleshooting.
5. Domain users can now change their passwords upon DSM login when their passwords expire.
6. Added support for Integrated Windows Authentication.
7. Added support for Google LDAP services.
8. Added the new Low-Capacity Write function, which resumes LUNs from read-only status temporarily when a volume is running out of space.
9. Users can now select which advanced features to enable during iSCSI LUN creation.
10. Adjusted the warning mechanism in iSCSI Manager for insufficient volume space.
11. Added function to schedule the snapshot rotation in iSCSI Manager.
12. Added support for the configuration of date and time formats in personal account settings and Control Panel.
13. Supports SSD compatibility check on XS and FS series models.
14. Adjusted the notification mechanism for bad sectors.
15. Improved the calculating accuracy of SSD cache hit rate.
16. Users can now get a Let's Encrypt certificate automatically upon adding a new Synology DDNS.
17. Changed notification badges from numbers to red dots and modified display rules.

Fixed Issues

1. Fixed an issue where usage history may not show in Resource Monitor on certain models.
2. Fixed an issue where files cannot be re-uploaded after being deleted on macOS 10.13.
3. Fixed an issue where encrypted Excel files cannot be opened in Microsoft Office 2016 simultaneously on multiple macOS devices.
4. Shortened the time needed for domain and LDAP authentication via AFP.
5. Improved the stability of mounting exFAT external devices (exFAT package required).
6. Improved the stability of NFS protocol connection.
7. Improved the stability of Snapshot Replication when moving a large number of directories.
8. Enhanced the stability of Btrfs file system under certain high I/O loading conditions.
9. Enhanced vulnerabilities protection from KPTI to Spectre and Meltdown Protection for improved security. Applied models:
   • 18-Series : DS218+, DS418play, DS718+, DS918+, DS1618+, DS3018xs, RS2418+, RS2418RP+, RS2818RP+, FS1018
   • 19-Series : DS1019+, DS1819+, DS2419+, RS1619xs+
10. Fixed multiple security vulnerabilities regarding Linux kernel (CVE-2017-13168, CVE-2018-19824, CVE-2017-15649, CVE-2018-14634, CVE-2018-17182, CVE-2018-10853).
11. Fixed multiple security vulnerabilities regarding OpenSSL (CVE-2018-0732, CVE-2018-0737, CVE-2019-1559, CVE-2018-0734, CVE-2018-5407).
12. Fixed multiple security vulnerabilities regarding Spectre & Meltdown (Synology-SA-18:01).
13. Fixed multiple security vulnerabilities regarding OpenSSH (CVE-2019-6109, CVE-2019-6110, CVE-2019-6111, CVE-2018-20685).
14. Fixed a security vulnerability regarding SQLite (Synology-SA-18:61).
15. Fixed multiple security vulnerabilities regarding Samba (Synology-SA-18:47, Synology-SA-18:60).
16. Fixed multiple security vulnerabilities regarding Intel TXE and ME (Synology-SA-17:73).
17. Fixed multiple security vulnerabilities regarding Speculative (Synology-SA-18:23).
18. Fixed multiple security vulnerabilities regarding L1 Terminal Fault (Synology-SA-18:45).
19. Minor bug fixes.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS if you are using the models listed below.
   • Plus Series : DS218+, DS718+, DS918+, DS1019+
   • Value Series : DS418play

Fixed Issues

1. Fixed an issue where abnormal reboot while converting SHR type or expanding SHR capacity may cause the storage volume not to be properly mounted.
2. Fixed an issue where the completion of Snapshot Replication under high load environment may result in abnormal reboot.
3. Minor bug fixes.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Fixed a security vulnerability (Synology-SA-18:64).

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Fixed a security vulnerability regarding Netatalk (Synology-SA-18:62).

Important Note

1. This update will restart your Synology NAS.

Fixed Issues

1. Fixed an issue where the SSD cache auto-protection mechanism was not able to start automatically.
2. Fixed an issue where installing package creates unnecessary package backup that occupies system space.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Improve Package Center system mechanisms to enhance user experience.
2. Enhanced the ext4 file system stability.
3. Fixed an issue where external hard drives of WD My Book might not be recognized if DSM is rebooted while the drives are in hibernation.
4. Fixed an issue where Microsoft Office files might not be renamed in Windows File Explorer through SMB protocol.
5. Fixed an issue where the HASP package might not be usable after upgrading to DSM 6.2-23739-2 and DSM 6.2.1-23824.
6. Fixed multiple security vulnerabilities regarding Linux kernel (Synology-SA-18:44).
7. Fixed a security vulnerability (Synology-SA-18:55).
8. Fixed a security vulnerability regarding wpa_supplicant (CVE-2018-14526).
9. Fixed a security vulnerability regarding OpenSSH (CVE-2018-15473).
10. Fixed multiple security vulnerabilities regarding Samba (CVE-2018-10858, CVE-2018-10919).

Important Note

1. The update is expected to be available for all regions within the next few weeks, although the time of release in each region may vary slightly.

2. After system upgrades to DSM 6.2.1, the HASP package will not be supported.

3. This update will restart your Synology NAS.

4. For the following models, DSM 6.2 will be the last upgradable version. DSM 6.2 will continue to receive critical and security updates until June 2023 after the official release. Please refer to the DiskStation Manager Life Cycle section in Synology Security White Paper.

   • XS Series : RS3412xs, RS3412RPxs, RS3411xs, RS3411RPxs, DS3612xs, DS3611xs
   • Plus Series : RS2212+, RS2212RP+, RS2211+, RS2211RP+, RS812+, RS812RP+,　DS2411+, DS1812+, DS1512+, DS1511+, DS712+, DS412+, DS411+II, DS411+, DS213+, DS212+, DS211+, DS112+
   • Value Series : RS812, RS212, RS411, DS413, DS411, DS213, DS212, DS211, DS112, DS111
   • J Series : DS413j, DS411j, DS411slim, DS213air, DS212j, DS211j, DS112j
   • Others : NVR216, NVR1218, DDSM

What's New in DSM 6.2.1

1. Space reclamation speed of legacy Advanced LUNs is now adjustable.

2. You can now convert legacy Advanced LUNs into new Advanced LUNs, which come with instant snapshots and performance improvements.

3. Added password strength meter for creating and modifying passwords.

4. When you install or upgrade your DSM version through the Internet, it will now automatically be upgraded to the corresponding DSM version with critical and security updates. The following models are not available due to hardware performance limitations.

   • 11 series: RS411, DS411slim, DS411j, DS411, DS211j, DS211+, DS211, DS111
   • 12 series: RS812, RS212, DS212j, DS212+, DS212, DS112j, DS112+, DS112
   • 13 series: DS413j, DS413, DS213j, DS213air, DS213+, DS213
   • 14 series: RS814, DS414slim, DS414j, DS414, RS214, DS214se, DS214+, DS214, DS114
   • 15 series: RS815, DS215j, DS115j, DS115
   • 16 series: DS216se

Fixed Issues

1. Fixed an issue where users may not be able to delete snapshots when the volume is full.

2. Fixed an issue where Windows may falsely detect an error on an exFAT format USB drive after it is used as the backup destination of Hyper Backup.

3. Improved Snapshot Replication package stability.

4. Fixed an issue where incorrect or incomplete update information may be displayed in the DSM Update tab.

5. Fixed an issue where a single RAID with over 24 drives may fail to assemble a RAID 5/6/F1 or SHR 1/2 storage pool.

6. Fixed an issue where boot failure might occur if the system was rebooted during the conversion process from RAID 5 to RAID 6.

7. Enhanced the compatibility of certain drives on Synology NAS and Expansion Unit models.

8. Fixed an issue where local users may fail to log in via SMB on specific Windows versions after adding their NAS to a Synology Active Directory domain.

9. Improved Windows client's clock synchronization with DSM after it is added to a Synology Active Directory domain. Upgrading Active Directory Server to version 4.4.5-0077 or above is required.

10. Modified HDD hibernation mechanism to prevent HDDs from entering hibernation when a volume is degraded, crashed, or not created.

11. Adjusted the default range of passive FTP/FTPS ports to align with maximum concurrent connections of each model.

12. Fixed multiple security vulnerabilities regarding Linux kernel (CVE-2018-1000199, CVE-2018-8897, CVE-2017-0861).

13. Fixed a security vulnerability regarding OpenSSL (CVE-2018-0739).

14. Fixed a security vulnerability regarding procps-ng (CVE-2018-1124).

15. Fixed a security vulnerability regarding ISC DHCP (CVE-2017-3144).

16. Fixed multiple security vulnerabilities (Synology-SA-18:51).

17. Minor bug fixes.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

2. This update will restart your Synology NAS if you are using the models listed below.

   • XS Series : RS2818RP+, RS3618xs, RS2418RP+, RS2418+, FS1018, DS3018xs, RS818RP+, RS818+, FS3017, FS2017, RS4017xs+, RS3617xs, RS3617RPxs, DS3617xs, RS3617xs+, RS18017xs+, RS2416RP+, RS2416+, RS18016xs+, DS3615xs, RC18015xs+, RS815RP+, RS815+, RS3614xs, RS3614RPxs, RS3614xs+, RS3413xs+, RS10613xs+, DS3612xs, RS3412xs, RS3412RPxs, DS3611xs, RS3411xs, RS3411RPxs

   • Plus Series : DS1618+, DS918+, DS718+, DS218+, DS1817+, DS1517+, DS2415+, DS1815+, DS1515+, DS415+

   • Value Series : DS418play

   • Others : VirtualDSM, DDSM

Fixed Issues

1. Adjusted power saving mechanism to improve PCIe compatibility.
2. Fixed multiple security vulnerabilities regarding Linux kernel (Synology-SA-18:01).
3. Fixed an issue where iSCSI Manager might not open for the incompatible format of iSCSI LUN configuration files set up before DSM 5.2.
4. Enhanced package start-up performance.
5. Fixed a security vulnerability (Synology-SA-18:36).

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update will restart your Synology NAS.

Fixed Issues

1. Fixed a security vulnerability regarding Linux kernel (CVE-2018-8897).
2. Enhance the performance of Surveillance Station when deleting recordings in btrfs volume.
3. Fixed multiple security vulnerabilities (Synology-SA-18:33).
4. Fixed an issue where VAAI might fail after iSCSI LUN was recovered by LUN Backup.
5. Fixed an issue where LUN configuration might be inconsistent.
6. Minor bug fixes.

Important Note

1. The update is expected to be available for all regions within the next few weeks, although the time of release in each region may vary slightly.

Compatibility and Installation

1. DSM 6.2 can only be installed on Synology products running DSM 6.0 and above.

2. Starting from DSM 6.2, the core replication function is centrally managed by a new package, Replication Service. Packages with replication feature, such as Snapshot Replication, must install the Replication Service package.

3. For the following models, DSM 6.2 will be the last upgradable version. DSM 6.2 will continue to receive critical and security updates until June 2023 after the official release. Please refer to the DiskStation Manager Life Cycle section in Synology Security White Paper.

   • XS Series : RS3412xs, RS3412RPxs, RS3411xs, RS3411RPxs, DS3612xs, DS3611xs

   • Plus Series : RS2212+, RS2212RP+, RS2211+, RS2211RP+, RS812+, RS812RP+, DS2411+, DS1812+, DS1512+, DS1511+, DS712+, DS412+, DS411+II, DS411+, DS213+, DS212+, DS211+, DS112+

   • Value Series : RS812, RS212, RS411, DS413, DS411, DS213, DS212, DS211, DS112, DS111

   • J Series : DS413j, DS411j, DS411slim, DS213air, DS212j, DS211j, DS112j

   • Others : DDSM

What’s New in DSM 6.2

1. DSM

   • For easier management, Key Manager can now be stored locally on Synology NAS. Encrypted shared folders can be auto-mounted without the need of a USB drive. (To achieve better data protection, users are suggested to store Key Manager on an external USB drive.)
   • Standard users can now right-click on shared folders in File Station to view Properties.
   • Added support for IBM WebSphere SSO.
   • Enhanced password strength policy for better account security.
   • Added support for a new SMS provider SendinBlue and Clickatell API (RESTful).
   • Added support for Thai language.
   • Updated Privacy Statement and related settings in the installation flow.

2. iSCSI Manager

   • Brand new iSCSI Manager built for IT administrators, providing a new management user interface for an optimized iSCSI management and monitoring experience.
   • Advanced LUN provides lightning-fast LUN snapshot creation and recovery, and LUN cloning within seconds, as well as VAAI/ODX, storage acceleration commands, and support for better VM performance. Since Advanced LUNs can utilize file system cache to provide better efficiency, block-level LUNs will no longer be supported on DSM 6.2 and onward. DSM 6.2 will still be compatible with the block-level LUNs upgraded from DSM 6.1 and prior.
   • Supports cross-volume LUN clones.
   • Added support for network binding settings to allow each iSCSI target to map to a network interface.
   • Users can now disable storage reclamation for thin-provisioned LUNs to enhance I/O performance.

3. Storage Manager

   • The brand new Overview shows the health status of all storage components on your NAS, displaying a clearer and better look on the system overview.

   • Introduced Storage Pool, a new storage component, to replace the original Disk Group and RAID Group, and rearrange storage-related functions to provide users with a more consistent and smoother experience.

   • Smart Data Scrubbing detects the supported file system and RAID type to perform data scrubbing automatically while enhancing data scrubbing usability. A new built-in scheduler allows users to do data scrubbing periodically with just a few clicks, improving data integrity and consistency.

   • RAID resync speed can now be adjusted to accommodate IT management needs.

   • Users can remotely deactivate drives via Storage Manager for better management.

   • Added a default monthly S.M.A.R.T. test on both new and existing drives that were not previously configured.

   • After each DSM upgrade, DSM will remind users if a bad sector or lifespan alert is not set up. 

   • The health status of disks is now uniform with storage pools and volumes.

   • Log Center now includes disk logs.

   • Provided an option to change stripe cache size when the RAID type of Storage pool is RAID 5, RAID 6, RAID F1, or SHR (three disks or above).

4. High Availability Manager 2.0

   • High Availability Manager has been modularized into a package to ensure better system maintenance and offers greater update  flexibility.

   • New mechanism can now eliminate unnecessary system reboot during major update to keep your cluster secure and maintain high service availability.

   • SHA 2.0 can handle situations more effectively especially when the servers are in a vulnerable state.

   • A simpler yet more intuitive user interface,  offering you a comprehensive cluster overview and management.

   • The new interface design provides more detailed and visual information as well as easy-to-follow solutions.

   • Brand new user interface is introduced to display more details of both active server and passive server, giving you an in-depth system utilization overview. 

   • When first creating SHA cluster, user new to SHA can choose to only replicate system configuration to shorten setup time.

5. Extended Btrfs File System Coverage

   • Btrfs file system is now available on more Synology NAS models utilizing ARM platforms. Enjoy the powerful features of the next-generation file system.

   • Applied Models:

     • 18-series: DS218, DS418 and more x18 series to come. 

6. Azure AD support

   • Added the capability to join existing Azure AD as an SSO client. Utilizing the single sign-on feature, daily productivity is increased by saving time spent on re-authentication.

7. Security Advisor

   • User login details and abnormal geolocation information are dissected using intelligent analysis techniques and reported via DSM notifications. 

   • Daily and monthly reports provide more comprehensive information, allowing IT administrator to review abnormal activity and security scan regularly.

8. TLS/SSL Profile Level

   • An advanced way to configure your security level profile based on different services to meet different security level requirements, providing flexibility to suit your network security requirements.

9. 2-step authentication

   • Synology NAS administrators must set up an email notification when 2-step authentication is enabled.

10. Domain/LDAP management

    • Flexibly assign specified domain groups with admin privileges.

11. FTP

    • Added ECDSA certificate support for FTPS connections.

12. NFS

    • Added NFS v4.1 multipathing for load balancing and network redundancy to fully support VMware vSphere® 6.5.

    • Applied models:

      • 18-series : DS3018xs, DS418play, DS918+, DS418j, DS418, DS718+, DS218+
      • 17-series : FS3017, FS2017, RS4017xs+, RS3617xs, RS3617RPxs, DS3617xs, RS3617xs+, RS18017xs+, DS1817+, DS1817, DS1517+, DS1517, RS217
      • 16-series : RS2416RP+, RS2416+, RS18016xs+, DS416play, RS816, DS916+, DS416slim, DS416j, DS416, DS216play, DS716+II, DS716+, DS216j, DS216+II, DS216+, DS216, DS116

13. Package Center

    • The brand new user interface design brings a more intuitive experience and allows users to quickly find everything they need.

14. IHM tool

    • Added Seagate IronWolf Health Management (IHM) support on DS118, DS218play, DS418j and DS418.

Known Issues & Limitations

1. DSM 6.2 is the last DSM version supporting IPv6 Tunneling in Network Interface.

2. The Fedora utility will not be supported after DSM 6.2.

3. Starting from DSM 6.2, the USB device drivers, including printers, cloud printers, DAC/speakers, Wi-Fi dongles, DTV dongles, LTE dongles, and Bluetooth dongles will no longer be updated.

4. Wi-Fi dongle does not support Parental Control and Device List if set as Bridge Mode.

5. Starting from DSM 6.2 Beta, Virtual Machine Manager will no longer support creating clusters with older DSM versions. Please update each host in the cluster to the same DSM version or above versions for the Virtual Machine Manager cluster to operate properly.

6. SSH authentication by DSA public key is prohibited for security concerns.

7. When logging in through VPN or Proxy server, some functionalities may have authentication issues. To fix this issue, please go to Control Panel > Security, and click the Trusted Proxies button to add the trusted proxy server to the list.

8. The original RAID scrubbing scheduled tasks will be migrated to Smart Data Scrubbing scheduled tasks. If the upgrade is performed while running scheduled tasks, the Data Scrubbing process will automatically be re-executed shortly after the upgrade is completed. 

9. Office 2.x and below are not compatible with DSM 6.2.