Update changlog

Author: Sephster

CHANGELOG.md

@@ -6,11 +6,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
-## [8.4.2] - released 2023-07-xx
+## [8.4.2] - released 2023-08-01
 ### Security
 - If a key string is provided to the CryptKey constructor with an invalid
   passphrase, the LogicException message generated will contain the given key.
-  The key is no longer leaked via this exception (PR #1353)
+  The key is no longer leaked via this exception (PR #1359)
 
 ## [8.4.1] - released 2023-03-22
 ### Fixed