diff --git a/CHANGELOG.md b/CHANGELOG.md
index c121192..1f72cfe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,17 @@
-Version 4.2.5-dev
+Version 4.2.6-dev
 -----------------
 
 Nothing yet.
 
+Version 4.2.5 (2019-10-25)
+--------------------------
+
+### Changed
+
+* Tests and documentation are no longer included in source archives. They can still be accessed
+  by cloning the repository.
+* php-yacc is now used to generate the parser. This has no impact on users of the library.
+
 Version 4.2.4 (2019-09-01)
 --------------------------