diff --git a/RelNotes/2.52.0.adoc b/RelNotes/2.52.0.adoc
index bfde4bd..a7f9afc 100644
--- a/RelNotes/2.52.0.adoc
+++ b/RelNotes/2.52.0.adoc
@@ -146,6 +146,9 @@
 
  * CI improvements to handle the recent Rust integration better.
 
+ * The code in "git repack" machinery has been cleaned up to prepare
+   for incremental update of midx files.
+
 
 Fixes since v2.51
 -----------------