April 8, 2025-KB5054980 Cumulative Update for . NET Framework 3. 5 and 4. . . . The March 25, 2025 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in NET Framework 3 5 and 4 8 1 We recommend that you apply this update as part of your regular maintenance routines Before you install this update, see the Prerequisites and Restart requirement sections Summary Security Improvements There are no new