### Version 2.0.4 - January 4, 2017 ([Maven](http://search.maven.org/#artifactdetails%7Cio.reactivex.rxjava2%7Crxjava%7C2.0.4%7C)) **API enhancements** - [Pull 4930](https://github.com/ReactiveX/RxJava/pull/4930): Add `Completable.cache()` **Bugfixes** - [Pull 4927](https://github.com/ReactiveX/RxJava/pull/4927): fix `timer()` `IllegalStateException` due to bad resource management - [Pull 4932](https://github.com/ReactiveX/RxJava/pull/4932): Add safeguards to `generate()` - [Pull 4943](https://github.com/ReactiveX/RxJava/pull/4943): Fix `publish(Function)` not replenishing its internal queue - [Pull 4945](https://github.com/ReactiveX/RxJava/pull/4945): Fix `timeout` with fallback not cancelling/disposing the main source connection.
