Release version 0.4.0 (chesskit-app#13)

pdil · web-flow · commit 053314a836f4 · 2024-04-22T14:47:20.000-04:00
`ChessKitEngine 0.4.0` release candidate.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,5 @@
-# [unreleased]
+# ChessKitEngine 0.4.0
+Released Monday, April 22, 2024.
 
 #### Engine Upgrades
 * Update to [*Stockfish 16.1*](https://stockfishchess.org/blog/2024/stockfish-16-1/).
