diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 097025e..959a1a5 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,4 +1,4 @@
-- ?:
+- 22.0 (2023-08-04):
     - Added 'MAIN.backend_wait' and 'MAIN.backend_wait_fail'.
 
 - 21.0 (2023-05-05):