Hello, the mobile version of DingTalk can not be set to automatically update latest version. If the DingTalk version is automatically updated every time, you can check whether the new version is automatically updated under the wifi settings.

If you don't want to update the desktop client version automatically: You can open the DingTalk desktop client - click the drop-down menu below the top right corner of the profile photo - click [Settings] - turn off [Auto Update] to close.