Maven
JavaDocs

Bugfixes

• Fix ObservableSwitchMap NullPointerException due to cancel race. (#7597)

Maven
JavaDocs

API changes

• Add onDropped callback for onBackpressureLatest. (#7542)
• Add onDropped callback to onBackpressureBuffer. (#7567)

Documentation

• Change summary to caption, because summary is obsolete in HTML5. (#7534)
• Try using https to access the reactive streams javadoc. (#7535)
• Improve Javadoc of Disposable.

Other

• Add minimum GitHub token permissions for workflows. (#7541)
• Create SECURITY.md (#7546)
• Add copyright and license to jar. (#7520)
• Convert CompletableOnErrorComplete$onError inner class to static. (#7575)
• Allow null accumulator type in the collect(Collector) operators. (#7590)

Maven
JavaDocs

API changes

• Add an overload to throttleLatest operator with an onDropped callback. (#7457)
• Add an overload to throttleFirst operator with an onDropped callback. (#7482)
• Add an overload to throttleLast operator with an onDropped callback. (#7488)
• Add an overload to throttleWithTimeout operator with an onDropped callback. (#7510)

Bugfixes

• Fix a race condition in Single.timeout that prevented the timeout signal from happening. (#7515)

Documentation

• Fix formatting in TestObserver/Consumer/Subscriber javadoc html. (#7442)
• Fix typo in BehaviorSubject.java. (#7452)
• Fix grammar about cancellation in Schedulers javadoc. (#7453)
• Change @coded tag to @code tag. (#7463)
• Fix fromCompletionStage javadoc. (#7508)

Other

• Add missing @NonNull annotation to Maybe type argument. (#7436)
• Remove redundant interface declarations. (#7438)
• Standardize MissingBackpressureException message, introduce QueueOverflowException. (#7459)
• Update Flowable.throttleLatest MissingBackpressureException message. (#7460)
• Fix cancellation order in throttleFirst. (#7484)

Verifying the release process still works after half a year.

Maven
JavaDocs

Dependencies

• Upgrade to Reactive Streams 1.0.4 (#7424)

Other

• Remove @NonNull return anotations from void methods (#7425)

Version 3.1.4 - March 21nd, 2022

Maven
JavaDocs

Documentation

• Apply the Javadoc format cleanup to Disposable.html (#7393)
• Fix marbles of first(T) (#7400)

Other

• Move nullness annotation to use sites of Supplier (#7385)

Maven
JavaDocs

Other

• Fix assert message format in TestSubscriber/TestObserver. (#7351)
• Use Zulu JDKs to test and build RxJava. (#7345)

Maven
JavaDocs

Compatibility

• Add full Java 9 module descriptor. (#7241)

Bugfixes

• Fix missing nullability on Single.subscribe(BiConsumer). (#7331)

Documentation

• Fix javadoc wording of {Publish|Behavior}Processor::offer(). (#7328)
• Indicate takeUntil stops on completion of other. (#7341)

Other

• Update assert messages format to be compliant with GradleRunner and JUnitRunner. (#7345)

Maven
JavaDocs

API promotions

• The operator fusion-related interfaces and two atomic queue implementations have been promoted to standard, thus officially supported in the io.reactivex.rxjava3.operators package. (#7320)

Bugfixes

• Specify proper OSGi unique bundle symbolic name of io.reactivex.rxjava3.rxjava. (#7319)
• Fix ExecutorScheduler initializing Schedulers prematurely when using RxJavaPlugins.createExecutorScheduler. (#7323)
• Fix the LamdbaConsumerIntrospection of Completable's lambda-based observer to use the same missing onError indicator as the other types' lambda-based consumers. (#7326)

Maven
JavaDocs

⚠️ With this release, the minimum required Android API level is API 21 (Android 5.0).

⚠️ Note that the 3.0.x patch line won't be developed further.

API promotions

• Flowable.onBackpressureReduce() + 1 (#7296)
• RxJavaPlugins.getOnParallelSubscribe() and RxJavaPlugins.setOnParallelSubscribe() (#7296)
• TestScheduler([...] boolean useOnScheduleHook) (#7296)

API additions

• subscribe([...], DisposableContainer) for better Disposable management and reference cleanup. (#7298)
• RxJavaPlugins.createExecutorScheduler() for creating an Executor-based Scheduler before the Schedulers class (and thus the standard schedulers) gets initialized. (#7306)

Behavior changes

• The scheduler purge thread has been removed. Removing cancelled timed operations is now managed by the setRemoveOnCancelPolicy of the underlying ScheduledExecutorService. (#7293)

Documentation

• Fixed wording of the fair parameter of Schedulers.from. (#7301)
• Update withLatestFrom javadoc about upstream early complete (#7289)

Other

• @NonNull annotations on generic type arguments were made consistent across. (#7302, #7303)