Synology DSM 7.3.1-86003 Update 1 (2025-11-18)

[bennor]

Release Notes: https://www.synology.com/en-us/releaseNote/DSM

Version: 7.3.1-86003 Update 1​

Important Update
(2025-11-18)

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.

Fixed Issues​

1. Fixed a security vulnerability.

Notes:

• This version is released in a staged rollout.