@alfons Thank you for posting your question on the Microsoft Q&A platform.
Yes, it is possible to upgrade your on-premises Azure DevOps Server 2019 to the latest version and install it on a fresh new Windows Server 2022. Here are the general steps to follow:
Take a backup of your existing Azure DevOps Server 2019 instance.
Install a new instance of Azure DevOps Server 2022 on the new Windows Server 2022.
During the installation process, select the option to restore from a backup.
Point the installation wizard to the backup file you created in step 1.
Follow the prompts to complete the installation and restore process.
Once the restore process is complete, you should have a fully functional instance of Azure DevOps Server 2022 with all your extensions and plugins restored.
Please note that the specific steps and requirements for upgrading your Azure DevOps Server instance may vary depending on your specific configuration and circumstances. I would recommend consulting the Azure DevOps Server documentation and seeking assistance from a Microsoft partner or Azure expert to ensure a smooth and successful upgrade process.
FYI: Azure DevOps is currently not supported in the Q&A forums, the supported products are listed over here - https://docs.microsoft.com/en-us/answers/products (more to be added later on).
The product group for Azure DevOps / TFS actively monitors questions over at
https://developercommunity.visualstudio.com/report?space=21&entry=problem
https://developercommunity.visualstudio.com/report?space=22&entry=problem
Hope this helps!
If the response helped, do "Accept Answer" and up-vote it