Updating Synology DSM

How to check Synology NAS DSM OS version

Checking to see which version of Synology’s DSM operating system is currently installed on your NAS may prove vital in ensuring you’re using the latest updates. Thankfully, doing so involves a few steps and requires a few moments since this information is readily available within DSM itself. This guide will show you how to quickly check your DSM OS version.

How to check DSM OS version

Checking the precise version number of the currently installed DSM OS release is a simple process. Here’s how to do it:

  1. Log into your Synology NAS.
  2. Open Control Panel.
  3. Click Update & Restore.
Synology DSM Control Panel
Checking version number in Synology DSM. (Source: NM)

The version number will be listed next to “Current DSM version” with a link to the official Synology release notes. When new releases are rolled out, depending on your update settings, the Synology NAS is capable of automatically installing the latest version.

Otherwise, you can manually download the update from the website, and checking the version you have installed can prove handy.

How to update your Synology NAS

Synology DiskStation 7.1 Updater
Updating DiskStation Manager 7.1. (Source: NAS Master)

Installing the latest version of Synology DSM on an eligible enclosure is an easy process and even the best NAS should be running the latest release. It can be carried out automatically by the OS itself or manually through the web interface. We’ll cover both methods for the purpose of this guide.

Automatic (recommended)

  1. Back up your NAS!
  2. Log into your NAS.
  3. Open Control Panel.
  4. Click Update & Restore.
  5. Click Update Settings.
Synology DSM Update Settings
Synology DSM Update Settings. (source: NM)
  1. Check “Automatically install the latest update.”
  2. Click OK.


  1. Back up your NAS!
  2. Visit Synology Download Center.
  3. Select your NAS model using the drop-down menus.
  4. Click on All Downloads under DSM 7.1.
  5. Click on the latest DSM update.
  6. Select the corresponding folder that matches your NAS.
  7. Log into your NAS.
  8. Go to Control Panel > Update & Restore > Manual DSM Update.
  9. Click Browse and select the downloaded DSM update file.
  10. Click OK to update DSM.
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