CHANGELOG.markdown in image_optim-0.23.0 vs CHANGELOG.markdown in image_optim-0.24.0

@@ -1,8 +1,15 @@
 # ChangeLog
 
 ## unreleased
 
+## v0.24.0 (2016-08-14)
+
+* Rails image assets optimization is extracted into [image\_optim\_rails gem](https://github.com/toy/image_optim_rails) [#127](https://github.com/toy/image_optim/issues/127) [@toy](https://github.com/toy)
+* Add proper handling of `ImageOptim.respond_to?` [@toy](https://github.com/toy)
+* Fix an issue not working OptiPNG `interlace` option [#136](https://github.com/toy/image_optim/pull/136) [@mrk21](https://github.com/mrk21)
+* Minimize number of file system calls in default implementation of `optimized?` [#137](https://github.com/toy/image_optim/issues/137) [@toy](https://github.com/toy)
+
 ## v0.23.0 (2016-07-17)
 
 * Added `cache_dir` and `cache_worker_digests` options to cache results [#83](https://github.com/toy/image_optim/issues/83) [@gpakosz](https://github.com/gpakosz)
 * Should work on windows [#24](https://github.com/toy/image_optim/issues/24) [@toy](https://github.com/toy)
 * Rename `ImageOptim::ImagePath` to `ImageOptim::Path` and its method `#format` to `#image_format` [@toy](https://github.com/toy)