Release 2.1.4

CHANGES.md

@@ -2,6 +2,30 @@
 
 The changelog of version 1.x can be found at https://github.com/ReactiveX/RxJava/blob/1.x/CHANGES.md
 
+### Version 2.1.4 - September 22, 2017 ([Maven](http://search.maven.org/#artifactdetails%7Cio.reactivex.rxjava2%7Crxjava%7C2.1.4%7C))
+
+#### API changes
+
+- [Pull 5568](https://github.com/ReactiveX/RxJava/pull/5568): Add `BaseTestConsumer.assertValuesOnly`.
+- [Pull 5582](https://github.com/ReactiveX/RxJava/pull/5582): Add `Maybe.switchIfEmpty(Single)`.
+- [Pull 5590](https://github.com/ReactiveX/RxJava/pull/5590): Add `LambdaConsumerIntrospection` for detecting the lack of `onError` callback in `subscribe()` calls.
+
+#### Documentation changes
+
+- [Pull 5578](https://github.com/ReactiveX/RxJava/pull/5578): Add `NullPointerException` comment to some `Single` operators.
+- [Pull 5600](https://github.com/ReactiveX/RxJava/pull/5600): Updating JavaDoc with correct return types of `Single` in some `Observable` operators.
+
+#### Bugfixes
+
+- [Pull 5560](https://github.com/ReactiveX/RxJava/pull/5560): Fix `Observable.combineLatestDelayError` sync initial error not emitting.
+- [Pull 5594](https://github.com/ReactiveX/RxJava/pull/5594): Fix `BaseTestConsumer.assertValueSequence` reversed error message.
+- [Pull 5609](https://github.com/ReactiveX/RxJava/pull/5609): Fix `Observable.concatMapEager` queueing of source items.
+
+#### Other
+
+- [Pull 5586](https://github.com/ReactiveX/RxJava/pull/5586): fix `Single.timeout` unnecessary dispose calls.
+
+
 ### Version 2.1.3 - August 15, 2017 ([Maven](http://search.maven.org/#artifactdetails%7Cio.reactivex.rxjava2%7Crxjava%7C2.1.3%7C))
 
 #### Dependency updates