Is it possible to upgrade Windows Server version when Plesk is installed?

Question

Is it possible to in-place upgrade the Windows Server OS on the server when Plesk is installed?

Answer

• Windows Server 2012 R2 to Windows Server 2019:
  Starting on Plesk 18.0.61, In-place upgrades from Windows server version 2012 to Windows server 2019 can be performed as instructed here.
• Windows Server 2016 to Windows Server 2025:
  Starting on Plesk 18.0.81, In-place upgrades from Windows server version 2016 directly to Windows server 2025 can be performed as instructed here.

• Windows Server 2019 to Windows Server 2025:
  Starting on Plesk 18.0.72, In-place upgrades from Windows server version 2019 to Windows server 2025 can be performed as instructed here.

• From any other Windows server version: Upgrade is not yet supported by Plesk. The correct work of Plesk is not guaranteed. It should be done at your own risk.
  Instead, it is recommended to migrate Plesk to another server running a newer Windows version by using Migration and Transfer Manager.
  Please take part in our product improvement by sharing your thoughts with development team by the link https://features.plesk.com/tabs/28-planned-roadmap. The top-ranked suggestions are likely to be included in the next versions of Plesk.