CHANGELOG.md in rmagick-4.2.5 vs CHANGELOG.md in rmagick-4.2.6

@@ -1,9 +1,20 @@
 # Change Log
 
 All notable changes to this project are documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## RMagick 4.2.6
+
+Improvements
+
+- Remove test_files to reduce gem package size (#1338)
+
+Bug Fixes
+
+- Guard against an empty rpath (#1333)
+- Call GetImageDistortion instead of IsImagesEqual to fix the issue reported in #1342 (#1343)
+
 ## RMagick 4.2.5
 
 Bug Fixes
 
 - Specify rpath linker option to fix dynamic lib lookup failure on Linux (#1325)