diff --git a/TODO b/TODO
index fac40a8a48..78a83b3b0a 100644
--- a/TODO
+++ b/TODO
@@ -2036,6 +2036,8 @@ Features:
   - ExtensionImages= deduplication for services is currently only applied to disk images without GPT envelope.
     This should be extended to work with proper DDIs too, as well as directory confext/sysext. Moreover,
     system-wide confex/sysext should support this too.
+  - Pin the mount namespace via FD by sending it back from sd-exec to the manager, and use it
+    for live mounting, instead of doing it via PID
 
 * unit files:
   - allow port=0 in .socket units