--- a/mercurial/configitems.toml	Thu Mar 07 01:35:43 2024 +0100
+++ b/mercurial/configitems.toml	Thu Mar 07 10:55:22 2024 +0100
@@ -720,6 +720,9 @@
 default = "publish"
 
 
+# The current implementation of the filtering/injecting of topological heads is
+# naive and need proper benchmark and optimisation because we can envision
+# moving the the v3 of the branch-cache format out of experimental
 [[items]]
 section = "experimental"
 name = "branch-cache-v3"