diff --git a/nixos/doc/manual/release-notes/rl-2405.section.md b/nixos/doc/manual/release-notes/rl-2405.section.md
index 9191a204a7a1..5c188ee3fadb 100644
--- a/nixos/doc/manual/release-notes/rl-2405.section.md
+++ b/nixos/doc/manual/release-notes/rl-2405.section.md
@@ -38,6 +38,9 @@ The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been m
 
 - Cinnamon has been updated to 6.0. Please beware that the [Wayland session](https://blog.linuxmint.com/?p=4591) is still experimental in this release.
 
+- `services.postgresql.extraPlugins` changed its type from a list of packages to a function that returns the former.
+  For example a config line like ``services.postgresql.extraPlugins = with pkgs.postgresql_11.pkgs; [ postgis ];`` would need to be changed to ``services.postgresql.extraPlugins = ps: with ps; [ postgis ];``;
+
 - Programs written in [Nim](https://nim-lang.org/) are built with libraries selected by lockfiles.
   The `nimPackages` and `nim2Packages` sets have been removed.
   See https://nixos.org/manual/nixpkgs/unstable#nim for more information.