diff --git a/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
index 0c10451add4c..44eb00f3ffd4 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
@@ -62,6 +62,14 @@
notes for details.
+
+
+ Module authors can use
+ mkRenamedOptionModuleWith to automate the
+ deprecation cycle without annoying out-of-tree module authors
+ and their users.
+
+
@@ -1050,7 +1058,8 @@
Legacy options have been mapped to the corresponding
options under under
nix.settings
- but may be deprecated in the future.
+ and will be deprecated when NixOS 21.11 reaches end of
+ life.