diff --git a/changelog.txt b/changelog.txt
index cc11e69e1..1702c615e 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,5 +1,12 @@
 *** Changelog ***
 
+= 3.6.4 - 2023-10-11 =
+* 3.6.3 release.
+* Fix option lock test.
+* Fix: Use orderby => 'none' when bulk cancelling actions.
+* Tweak - WP 6.3 compatibility.
+* Update PR unit tests matrix.
+
 = 3.6.3 - 2023-09-13 =
 * Use `_doing_it_wrong` in initialization check.
 
diff --git a/readme.txt b/readme.txt
index 9733adb76..e8b32021b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -45,6 +45,13 @@ Collaboration is cool. We'd love to work with you to improve Action Scheduler. [
 
 == Changelog ==
 
+= 3.6.4 - 2023-10-11 =
+* 3.6.3 release.
+* Fix option lock test.
+* Fix: Use orderby => 'none' when bulk cancelling actions.
+* Tweak - WP 6.3 compatibility.
+* Update PR unit tests matrix.
+
 = 3.6.3 - 2023-09-13 =
 * Use `_doing_it_wrong` in initialization check.