diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51fde0ae..842b44e7 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
-dlib 0.23.0 beta1 - TBD
------------------------
+dlib 0.23.0 beta1 - 28 Sep, 2021
+--------------------------------
 - **dlib.math**
   - Vector swizzling assign support: `v.zxy = Vector3f(1, 2, 3);`
   - `Quaternion.generator` is deprecated, use `Quaternion.rotationAxis` and `Quaternion.rotationAngle` instead