diff --git a/docs/release-notes/rl-2605.md b/docs/release-notes/rl-2605.md
index bcc6c7c7..4758869a 100644
--- a/docs/release-notes/rl-2605.md
+++ b/docs/release-notes/rl-2605.md
@@ -23,3 +23,12 @@ changes are only active if the `home.stateVersion` option is set to
 - The [](#opt-programs.zsh.dotDir) option now defaults to the XDG
   configuration directory (usually `~/.config/zsh`) when
   [](#opt-xdg.enable) is true.
+
+- The [](#opt-xdg.userDirs.setSessionVariables) option now defaults to `false`
+  instead of `true`.
+
+- The [](#opt-xdg.userDirs.extraConfig) option no longer accepts keys of the
+  form `XDG_<name>_DIR`, they should be now be just the name. For example, if
+  you had the key `XDG_DESKTOP_DIR` before, you should now use the key
+  `DESKTOP`. Home Manager 26.05 introduced a warning when the `XDG_<name>_DIR`
+  form is used.