Microsoft released preview update KB5124010 for Windows 11 24H2, which is the last update for that version. Support for 24H2 ends in October 2026, and 25H2 continues as normal. If your office PCs run 24H2, plan an upgrade to 25H2 before support ends so they keep receiving security patches. The update also fixes File History backup bugs from the previous patch, so check that backups are running. PC-to-PC Migration is now replaced by Windows Backup.