CHANGELOG.markdown in image_optim-0.17.1 vs CHANGELOG.markdown in image_optim-0.18.0

@@ -1,8 +1,18 @@
 # ChangeLog
 
 ## unreleased
 
+## v0.18.0 (2014-11-01)
+
+* Add interface to `image_optim_pack` [@toy](https://github.com/toy)
+* Use `in_threads ~> 1.3` [@toy](https://github.com/toy)
+* Added options to Gifsicle, specifically --careful (for compatibility) and --optimize for granularity [#51](https://github.com/toy/image_optim/issues/51) [@kaspergrubbe](https://github.com/kaspergrubbe)
+* `:skip_missing_workers` option to skip workers with missing or problematic binaries [#66](https://github.com/toy/image_optim/issues/66) [@toy](https://github.com/toy)
+* Speedup specs (~8x) [#60](https://github.com/toy/image_optim/issues/60) [@toy](https://github.com/toy)
+* `script/worker_analysis` to compare worker chains by optimization, time and losslessness [@toy](https://github.com/toy)
+* `Cmd` module to ensure interrupted commands can't go unnoticed [@toy](https://github.com/toy)
+
 ## v0.17.1 (2014-10-06)
 
 * Fix bin path resolving method missing vendor directory [@toy](https://github.com/toy)
 
 ## v0.17.0 (2014-10-04)