Power BI Report Server upgrade version and OS

Hi sunshine07 

Upgrading Power BI Report Server (PBIRS) from January 2023 to January 2025 requires migrating to Windows Server 2019 or 2022, as the latest version is not supported on Windows Server 2012 R2. The recommended approach is a side-by-side migration rather than an in-place upgrade. First, back up the ReportServer and ReportServerTempDB databases along with the encryption keys using Report Server Configuration Manager. Then, set up a new Windows Server with the latest Power BI Report Server (January 2025) and restore the backed-up databases. After that, reconfigure service accounts, URLs, and authentication settings to match the previous setup. Ensure reports, subscriptions, and scheduled refreshes work correctly by testing thoroughly before switching over. Once verified, update all users and connections to the new server and decommission the old one. This approach ensures a smooth transition with minimal downtime.