diff --git a/nixos/doc/manual/release-notes/rl-2605.section.md b/nixos/doc/manual/release-notes/rl-2605.section.md
index 5220d49e71e2..54ba0bc43817 100644
--- a/nixos/doc/manual/release-notes/rl-2605.section.md
+++ b/nixos/doc/manual/release-notes/rl-2605.section.md
@@ -276,6 +276,10 @@ See <https://github.com/NixOS/nixpkgs/issues/481673>.
     - For shortlived certificates with a total validty below 10 days renewal
       will happen after half of the total lifetime has passed
 
+- The module for the Dovecot IMAP server, *services.dovecot*, now uses RFC-42-style settings, exposing a structured interface to write the configuration file.
+
+  Also see the list of available settings for [Dovecot 2.3](https://doc.dovecot.org/2.3/settings/core/) or [2.4](https://doc.dovecot.org/2.4.2/core/summaries/settings.html).
+
 - Cinnamon has been updated to 6.6, please check the [upstream announcement](https://www.linuxmint.com/rel_zena_whatsnew.php) for more details.
 
 - Budgie has been updated to 10.10, please check the [upstream announcement](https://buddiesofbudgie.org/blog/budgie-10-10-released) for more details.