DSM 6.2-23739 (2018-05-23) (3/3)

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.

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DSM 6.2-23739-1 (2018-06-25)

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.


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File Station (DSM 6.2) 1.2.3-0252 (2018-07-12)

1. Supports selecting multiple users or groups to edit the ACL settings in Shared Folder.
2. Optimized the user interface in Thai language.
3. Fixed a security vulnerability (Synology-SA-18:35).

Release Notes

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DSM 6.2-23739-2 (2018-07-12)

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).

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DSM 6.2-23739-2 (2018-07-12)

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).


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DSM 6.2.1-23824 (2018-08-29)

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.

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DSM 6.2.1-23824-1 (2018-10-16)

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).

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DSM 6.2.1-23824-2 (2018-12-11)

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.

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DSM 6.2.1-23824-3 (2018-12-21)

Important Note
1. This update is available for manual download. Go to Download Center and select the patch for your model.
2. This update will restart your Synology NAS.

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

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DSM 6.2.1-23824-4 (2018-12-26)

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

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