diff --git a/CHANGELOG.md b/CHANGELOG.md
index b747c022b..72f622755 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -49,10 +49,12 @@ librdkafka v2.4.0 is a feature release:
    That could also happen if resuming a partition that wasn't paused.
    Fixed by ensuring that a resume operation is completely a no-op when
    the partition isn't paused (#4636).
- * While using the cooperative assignor, given an assignment is received while closing the consumer
+ * Issues: #4527.
+   While using the cooperative assignor, given an assignment is received while closing the consumer
    it's possible that it gets stuck in state WAIT_ASSIGN_CALL, while the method is converted to
    a full unassign. Solved by changing state from WAIT_ASSIGN_CALL to WAIT_UNASSIGN_CALL
-   while doing this conversion (#4528).
+   while doing this conversion.
+   Happening since 1.x (#4528).