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diff --git a/nixos/doc/manual/release-notes/rl-2311.section.md b/nixos/doc/manual/release-notes/rl-2311.section.md
index 1dbc33f2373..e5e4e713ae2 100644
--- a/nixos/doc/manual/release-notes/rl-2311.section.md
+++ b/nixos/doc/manual/release-notes/rl-2311.section.md
@@ -145,6 +145,9 @@
 
 ## Backward Incompatibilities {#sec-release-23.11-incompatibilities}
 
+- `services.postgresql.ensurePermissions` has been deprecated in favor of `services.postgresql.ensureUsers.*.ensureDBOwnership` which simplifies the setup of database owned by a certain system user
+  in local database contexts (which make use of peer authentication via UNIX sockets), migration guidelines were provided in the NixOS manual, please refer to them if you are affected by a PostgreSQL 15 changing the way `GRANT ALL PRIVILEGES` is working. `services.postgresql.ensurePermissions` will be removed in 24.05. All NixOS modules were migrated using one of the strategy, e.g. `ensureDBOwnership` or `postStart`. More about this situation can be learnt in https://github.com/NixOS/nixpkgs/pull/266270.
+
 - `network-online.target` has been fixed to no longer time out for systems with `networking.useDHCP = true` and `networking.useNetworkd = true`.
   Workarounds for this can be removed.