switch-to-configuration: add sysinit-reactivation release note

nixos/doc/manual/release-notes/rl-2405.section.md

@@ -109,6 +109,11 @@ The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been m
 
 - The executable file names for `firefox-devedition`, `firefox-beta`, `firefox-esr` now matches their package names, which is consistent with the `firefox-*-bin` packages. The desktop entries are also updated so that you can have multiple editions of firefox in your app launcher.
 
+- switch-to-configuration does not directly call systemd-tmpfiles anymore.
+  Instead, the new artificial sysinit-reactivation.target is introduced which
+  allows to restart multiple services that are ordered before sysinit.target
+  and respect the ordering between the services.
+
 - The `systemd.oomd` module behavior is changed as:
 
   - Raise ManagedOOMMemoryPressureLimit from 50% to 80%. This should make systemd-oomd kill things less often, and fix issues like [this](https://pagure.io/fedora-workstation/issue/358).