Microsoft details new features coming in Windows Server 2025
 

First and foremost, the biggest improvement: hot-patching. Security updates can be installed without having to reboot, because Server 2025 will modify code in memory without restarting the processes in question. Quarterly updates, however, will still require reboots. Hot-patching will be free on all versions of Server 2025.

https://www.osnews.com/story/139236/...s-server-2025/