Add CHANGES note for [GL #4591]

(cherry picked from commit db69cc7891d966dfc767cb2da469771fbe4d0997)
(cherry picked from commit 9584c4338e26024d0900b4bf9931b920fd64bde4)

diff --git a/CHANGES b/CHANGES
index 1cee1334fb12f4de96ad1bef24af4b9ff824e1fa..749b0f1b66f08366fe48209176534fa6855c4323 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,8 @@
+6353.  [bug]           Improve the TTL-based cleaning by removing the expired
+                       headers from the heap, so they don't block the next
+                       cleaning round and clean more than a single item for
+                       each new addition to the RBTDB. [GL #4591]
+
 6352.  [bug]           Revert change 6319 and decrease lock contention during
                        RBTDB tree pruning by not cleaning up nodes recursively
                        within a single prune_tree() call. [GL #4596]