diff --git a/CHANGES.txt b/CHANGES.txt
index 73c716e14f..32698f8fb7 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 4.1
+ * Add a Denylist to block reads and writes on specific partition keys (CASSANDRA-12106)
  * v4+ protocol did not clean up client warnings, which caused leaking the state (CASSANDRA-17054)
  * Remove duplicate toCQLString in ReadCommand (CASSANDRA-17023)
  * Ensure hint window is persistent across restarts of a node (CASSANDRA-14309)
diff --git a/NEWS.txt b/NEWS.txt
index 7850b0951e..d950100aa7 100644
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -64,6 +64,9 @@ New features
       than max_window_in_ms. If there is, a hint is not persisted. If there is not, it is.
       This behaviour might be reverted as it was in previous version by property hint_window_persistent_enabled by
       setting it to false. This property is by default set to true.
+    - Added a new feature to allow denylisting (i.e. blocking read, write, or range read configurable) access to partition
+      keys in configured keyspaces and tables. See doc/operating/denylisting_partitions.rst for details on using this new
+      feature. Also see CASSANDRA-12106.
 
 Upgrading
 ---------