@reactivex/rxjs

## [6.6.7](https://github.com/reactivex/rxjs/compare/6.6.6...6.6.7) (2021-03-28) ### Bug Fixes * **types:** Resolved an issue where referencing `Symbol.observable` before RxJS accessed the `symbol/observable` module internally would result in a reference error. ([#6178](https://github.com/reactivex/rxjs/issues/6178)) ([94f690b](https://github.com/reactivex/rxjs/commit/94f690b9a11ead952655e94e1ad036d1bdd0e916)), closes [#6175](https://github.com/reactivex/rxjs/issues/6175) * **mergeMap, concatMap, switchMap, et al**: Resolves an issue where returning an invalid `ObservableInput` would not be catchable in the observation chain. ([#6186](https://github.com/reactivex/rxjs/issues/6186)) ([4014e19](https://github.com/reactivex/rxjs/commit/4014e19bf150953248ea79c4b0b52aab17d35c85)), closes [#5344](https://github.com/reactivex/rxjs/issues/5344) ## [6.6.6](https://github.com/reactivex/rxjs/compare/6.6.0...6.6.6) (2021-02-25) ### Bug Fixes * **shareReplay:** handle possible memory leaks ([#5932](https://github.com/reactivex/rxjs/issues/5932)) ([6f7d88b](https://github.com/reactivex/rxjs/commit/6f7d88b4da97bd9ea5ac759c5b469cc525f3d450)) ## 6.6.5 accidentally published without changes. :D ## [6.6.4](https://github.com/reactivex/rxjs/compare/6.6.0...6.6.4) (2021-02-24) ### Bug Fixes * **ReplaySubject:** don't buffer next if stopped ([#5696](https://github.com/reactivex/rxjs/issues/5696)) ([47d9e33](https://github.com/reactivex/rxjs/commit/47d9e33780b9e27f20f48ea2a1db59ea899e6e8d)) * Ensure unsubscriptions/teardowns on internal subscribers are idempotent ([#5465](https://github.com/reactivex/rxjs/issues/5465)) ([6d6a882](https://github.com/reactivex/rxjs/commit/6d6a882bc987b855205ab26c9bc2e84e67837734)), closes [#5464](https://github.com/reactivex/rxjs/issues/5464) ## [6.6.3](https://github.com/reactivex/rxjs/compare/6.6.0...6.6.3) (2020-09-06) ### Bug Fixes * **ReplaySubject:** don't buffer next if stopped ([#5696](https://github.com/reactivex/rxjs/issues/5696)) ([47d9e33](https://github.com/reactivex/rxjs/commit/47d9e33780b9e27f20f48ea2a1db59ea899e6e8d)) * Ensure unsubscriptions/teardowns on internal subscribers are idempotent ([#5465](https://github.com/reactivex/rxjs/issues/5465)) ([6d6a882](https://github.com/reactivex/rxjs/commit/6d6a882bc987b855205ab26c9bc2e84e67837734)), closes [#5464](https://github.com/reactivex/rxjs/issues/5464) ## [6.6.2](https://github.com/reactivex/rxjs/compare/6.6.0...6.6.2) (2020-07-31) ### Bug Fixes * **perf:** Reduce memory pressure by no longer retaining outer values across the majority of operators. ([#5613](https:://github.com/reactivex/rxjs/pull/5613)) ([10cc8a6](https://github.com/ReactiveX/rxjs/commit/10cc8a68850e1da5e7af30fc34e84f52f65b2140)) ## [6.6.1](https://github.com/reactivex/rxjs/compare/6.6.0...6.6.1) (2020-07-31) ### Bug Fixes * **perf:** Ensure unsubscriptions/teardowns on internal subscribers are idempotent ([#5465](https://github.com/reactivex/rxjs/issues/5465)) ([6d6a882](https://github.com/reactivex/rxjs/commit/6d6a882bc987b855205ab26c9bc2e84e67837734)), closes [#5464](https://github.com/reactivex/rxjs/issues/5464) # [6.6.0](https://github.com/reactivex/rxjs/compare/6.5.3...6.6.0) (2020-07-02) ### Bug Fixes * **asapScheduler:** resolved memory leak ([#5183](https://github.com/reactivex/rxjs/issues/5183)) ([4312af5](https://github.com/reactivex/rxjs/commit/4312af5c5c5dde51873a8f02387bea25e23a36ca)), closes [#5016](https://github.com/reactivex/rxjs/issues/5016) * **fetch:** don't leak event listeners added to passed-in signals ([#5305](https://github.com/reactivex/rxjs/issues/5305)) ([06bf3a3](https://github.com/reactivex/rxjs/commit/06bf3a30c65d85f18aeb2ef2b800e918c8d36979)) * **fromFetch:** passing already aborted signal to init aborts fetch ([c2657a8](https://github.com/reactivex/rxjs/commit/c2657a868e1c079d50f63ce5c0850572d491238a)) * **pipe:** Special handling for 0-arg case. ([#4936](https://github.com/reactivex/rxjs/issues/4936)) ([2e9d867](https://github.com/reactivex/rxjs/commit/2e9d867d8d082dc6130cce3cd49988c4e3c0c424)) * **pluck:** operator breaks with null/undefined inputs. ([#5524](https://github.com/reactivex/rxjs/issues/5524)) ([3bb2f7f](https://github.com/reactivex/rxjs/commit/3bb2f7fe4cfb42695cbfac4cfaa15b72708963a1)) * **shareReplay:** no longer misses synchronous values from source ([d2f6ac7](https://github.com/reactivex/rxjs/commit/d2f6ac709ae0435e2d4990edcb3245dc5a5e8d2c)) * **interop:** chain subscriptions from interop observables for 6.x ([#5178](https://github.com/reactivex/rxjs/issues/5178)) ([cbc7721](https://github.com/reactivex/rxjs/commit/cbc77213e97ecc00d90a65ecf18707b76ebfe7fc)) * **shareReplay:** clear subscription on shareReplay completion ([#5044](https://github.com/reactivex/rxjs/issues/5044)) ([9f87505](https://github.com/reactivex/rxjs/commit/9f87505deae0aeae7dd53918e392487d6de7ab73)), closes [#5034](https://github.com/reactivex/rxjs/issues/5034) * **fromFetch:** don't reassign closed-over parameter in fromFetch ([#5234](https://github.com/reactivex/rxjs/issues/5234)) ([0377710](https://github.com/reactivex/rxjs/commit/03777102a3491e0b3dac00c53a1b217c45616fc6)), closes [#5233](https://github.com/reactivex/rxjs/issues/5233) [#5233](https://github.com/reactivex/rxjs/issues/5233) * **iterables:** errors thrown from iterables now properly propagated ([#5444](https://github.com/reactivex/rxjs/issues/5444)) ([2bce0e3](https://github.com/reactivex/rxjs/commit/2bce0e39d51fb2e9bee3e2419e1b66a6c6e48e9e)) * **fromFetch:** missing package.json in rxjs/fetch ([#5001](https://github.com/reactivex/rxjs/issues/5001)) ([06fb735](https://github.com/reactivex/rxjs/commit/06fb73555375095bb55cdd02287bea5f9c0ddafc)) ### Features * **fromFetch:** add selector (cherry pick [#5306](https://github.com/reactivex/rxjs/issues/5306) for v6) ([#5442](https://github.com/reactivex/rxjs/issues/5442)) ([3d6e4c5](https://github.com/reactivex/rxjs/commit/3d6e4c5bf2ba2eec31fdf2498a9fcc9ad364511f)) ## [6.5.5](https://github.com/reactivex/rxjs/compare/6.5.3...6.5.5) (2020-04-03) ### Bug Fixes * **fetch:** don't leak event listeners added to passed-in signals ([#5305](https://github.com/reactivex/rxjs/issues/5305)) ([06bf3a3](https://github.com/reactivex/rxjs/commit/06bf3a30c65d85f18aeb2ef2b800e918c8d36979)) * **pipe:** Special handling for 0-arg case. ([#4936](https://github.com/reactivex/rxjs/issues/4936)) ([2e9d867](https://github.com/reactivex/rxjs/commit/2e9d867d8d082dc6130cce3cd49988c4e3c0c424)) * don't reassign closed-over parameter in fromFetch ([#5234](https://github.com/reactivex/rxjs/issues/5234)) ([0377710](https://github.com/reactivex/rxjs/commit/03777102a3491e0b3dac00c53a1b217c45616fc6)), closes [#5233](https://github.com/reactivex/rxjs/issues/5233) [#5233](https://github.com/reactivex/rxjs/issues/5233) * **asapScheduler:** resolved memory leak ([#5183](https://github.com/reactivex/rxjs/issues/5183)) ([4312af5](https://github.com/reactivex/rxjs/commit/4312af5c5c5dde51873a8f02387bea25e23a36ca)), closes [#5016](https://github.com/reactivex/rxjs/issues/5016) * chain subscriptions from interop observables for 6.x ([#5178](https://github.com/reactivex/rxjs/issues/5178)) ([cbc7721](https://github.com/reactivex/rxjs/commit/cbc77213e97ecc00d90a65ecf18707b76ebfe7fc)) * clear subscription on shareReplay completion ([#5044](https://github.com/reactivex/rxjs/issues/5044)) ([9f87505](https://github.com/reactivex/rxjs/commit/9f87505deae0aeae7dd53918e392487d6de7ab73)), closes [#5034](https://github.com/reactivex/rxjs/issues/5034) * **fromFetch:** passing already aborted signal to init aborts fetch ([c2657a8](https://github.com/reactivex/rxjs/commit/c2657a868e1c079d50f63ce5c0850572d491238a)) * missing package.json in rxjs/fetch ([#5001](https://github.com/reactivex/rxjs/issues/5001)) ([06fb735](https://github.com/reactivex/rxjs/commit/06fb73555375095bb55cdd02287bea5f9c0ddafc)) ## [6.5.4](https://github.com/reactivex/rxjs/compare/6.5.3...6.5.4) (2019-12-27) ### Bug Fixes * **asapScheduler:** resolved memory leak ([#5183](https://github.com/reactivex/rxjs/issues/5183)) ([4312af5](https://github.com/reactivex/rxjs/commit/4312af5)), closes [#5016](https://github.com/reactivex/rxjs/issues/5016) * chain subscriptions from interop observables for 6.x ([#5178](https://github.com/reactivex/rxjs/issues/5178)) ([cbc7721](https://github.com/reactivex/rxjs/commit/cbc7721)) * **shareReplay** clear subscription on shareReplay completion ([#5044](https://github.com/reactivex/rxjs/issues/5044)) ([9f87505](https://github.com/reactivex/rxjs/commit/9f87505)), closes [#5034](https://github.com/reactivex/rxjs/issues/5034) * **fromFetch:** passing already aborted signal to init aborts fetch ([c2657a8](https://github.com/reactivex/rxjs/commit/c2657a8)) * missing package.json in rxjs/fetch ([#5001](https://github.com/reactivex/rxjs/issues/5001)) ([06fb735](https://github.com/reactivex/rxjs/commit/06fb735)) ## [6.5.3](https://github.com/reactivex/rxjs/compare/6.5.2...6.5.3) (2019-09-03) ### Bug Fixes * **general:** Refactor modules so they don't show side effects in some tools ([#4769](https://github.com/reactivex/rxjs/issues/4769)) ([9829c5e0](https://github.com/reactivex/rxjs/commit/9829c5e0)) * **defer:** restrict allowed factory types ([#4835](https://github.com/reactivex/rxjs/issues/4835)) ([40a22096](https://github.com/reactivex/rxjs/commit/40a22096)) ## [6.5.2](https://github.com/reactivex/rxjs/compare/6.5.0...6.5.2) (2019-05-10) ### Bug Fixes * **endWith:** wrap args - they are not observables - in of before concatenating ([#4735](https://github.com/reactivex/rxjs/issues/4735)) ([986be2f](https://github.com/reactivex/rxjs/commit/986be2f)) * **forkJoin:** test for object literal ([#4741](https://github.com/reactivex/rxjs/issues/4741)) ([c11e1b3](https://github.com/reactivex/rxjs/commit/c11e1b3)), closes [#4737](https://github.com/reactivex/rxjs/issues/4737) [#4737](https://github.com/reactivex/rxjs/issues/4737) * **Notification:** replace const enum ([#4556](https://github.com/reactivex/rxjs/issues/4556)) ([e460eec](https://github.com/reactivex/rxjs/commit/e460eec)), closes [#4538](https://github.com/reactivex/rxjs/issues/4538) * **of:** remove deprecation comment to prevent false positive warning ([#4724](https://github.com/reactivex/rxjs/issues/4724)) ([da69c16](https://github.com/reactivex/rxjs/commit/da69c16)) * **pairwise:** make it recursion-proof ([#4743](https://github.com/reactivex/rxjs/issues/4743)) ([21ab261](https://github.com/reactivex/rxjs/commit/21ab261)) * **scan:** fixed declarations to properly support different return types ([#4598](https://github.com/reactivex/rxjs/issues/4598)) ([126d2b6](https://github.com/reactivex/rxjs/commit/126d2b6)) * **Subscription:** Return Empty when teardown === null ([#4575](https://github.com/reactivex/rxjs/issues/4575)) ([ffc4e68](https://github.com/reactivex/rxjs/commit/ffc4e68)) * **throttleTime:** emit single value with trailing enabled ([#4564](https://github.com/reactivex/rxjs/issues/4564)) ([fd690a6](https://github.com/reactivex/rxjs/commit/fd690a6)), closes [#2859](https://github.com/reactivex/rxjs/issues/2859) [#4491](https://github.com/reactivex/rxjs/issues/4491) * **umd:** export fetch namespace ([#4738](https://github.com/reactivex/rxjs/issues/4738)) ([7926122](https://github.com/reactivex/rxjs/commit/7926122)) * **fromFetch:** don't abort if fetch resolves ([#4742](https://github.com/reactivex/rxjs/issues/4742) ([ed8d771](https://github.com/reactivex/rxjs/commit/ed8d771)) ## [6.5.1](https://github.com/reactivex/rxjs/compare/6.5.0...6.5.1) (2019-04-23) ### Bug Fixes * **Notification:** replace const enum ([#4556](https://github.com/reactivex/rxjs/issues/4556)) ([e460eec](https://github.com/reactivex/rxjs/commit/e460eec)), closes [#4538](https://github.com/reactivex/rxjs/issues/4538) * **throttleTime:** emit single value with trailing enabled ([#4564](https://github.com/reactivex/rxjs/issues/4564)) ([fd690a6](https://github.com/reactivex/rxjs/commit/fd690a6)), closes [#2859](https://github.com/reactivex/rxjs/issues/2859) [#4491](https://github.com/reactivex/rxjs/issues/4491) # [6.5.0](https://github.com/reactivex/rxjs/compare/6.4.0...6.5.0) (2019-04-23) ### Bug Fixes * **docs-app:** remove stopWordFilter from lunr pipeline ([#4536](https://github.com/reactivex/rxjs/issues/4536)) ([9eaebd4](https://github.com/reactivex/rxjs/commit/9eaebd4)) * **dtslint:** disable tests that break in TS@next ([#4705](https://github.com/reactivex/rxjs/issues/4705)) ([ecc73d2](https://github.com/reactivex/rxjs/commit/ecc73d2)) * **index:** export NotificationKind ([#4514](https://github.com/reactivex/rxjs/issues/4514)) ([7125355](https://github.com/reactivex/rxjs/commit/7125355)), closes [#4513](https://github.com/reactivex/rxjs/issues/4513) * **race:** better typings ([#4643](https://github.com/reactivex/rxjs/issues/4643)) ([fb9bc48](https://github.com/reactivex/rxjs/commit/fb9bc48)), closes [#4390](https://github.com/reactivex/rxjs/issues/4390) [#4642](https://github.com/reactivex/rxjs/issues/4642) * **throwIfEmpty:** ensure result is retry-able ([c4f44b9](https://github.com/reactivex/rxjs/commit/c4f44b9)) * **types:** Fixed signature for onErrorResumeNext ([#4603](https://github.com/reactivex/rxjs/issues/4603)) ([4dd0be0](https://github.com/reactivex/rxjs/commit/4dd0be0)) ### Features * **combineLatest:** deprecated rest argument and scheduler signatures ([#4641](https://github.com/reactivex/rxjs/issues/4641)) ([6661c79](https://github.com/reactivex/rxjs/commit/6661c79)), closes [#4640](https://github.com/reactivex/rxjs/issues/4640) * **fromFetch:** We now export a `fromFetch` static observable creation method from `rxjs/fetch`. Mirrors native `fetch` only it's lazy and cancellable via `Observable` interface. ([#4702](https://github.com/reactivex/rxjs/issues/4702)) ([5a1ef86](https://github.com/reactivex/rxjs/commit/5a1ef86)) * **forkJoin:** accepts a dictionary of sources ([#4640](https://github.com/reactivex/rxjs/issues/4640)) ([b5a2ac9](https://github.com/reactivex/rxjs/commit/b5a2ac9)) * **partition:** new `partition` observable creation function. Old `partition` operator is deprecated ([#4419](https://github.com/reactivex/rxjs/issues/4419)) ([#4685](https://github.com/reactivex/rxjs/issues/4685)) ([d5d6980](https://github.com/reactivex/rxjs/commit/d5d6980)) * **scheduled:** Add `scheduled` creation function to use to create scheduled observable of values. Deprecate scheduled versions of `from`, `range`, et al. ([#4595](https://github.com/reactivex/rxjs/issues/4595)) ([f57e1fc](https://github.com/reactivex/rxjs/commit/f57e1fc)) ### Performance Improvements * **Subscription:** improve parent management ([#4526](https://github.com/reactivex/rxjs/issues/4526)) ([06f1a25](https://github.com/reactivex/rxjs/commit/06f1a25)) # [6.4.0](https://github.com/reactivex/rxjs/compare/6.3.3...6.4.0) (2019-01-30) ### Bug Fixes * **ajax:** Fix case-insensitive headers in HTTP request ([#4453](https://github.com/reactivex/rxjs/issues/4453)) ([673bf47](https://github.com/reactivex/rxjs/commit/673bf47)) * **bundle:** closure to not rewrite polyfills for minification ([#4487](https://github.com/reactivex/rxjs/issues/4487)) ([a1fedb9](https://github.com/reactivex/rxjs/commit/a1fedb9)) * **bundle:** don't export `operators` twice ([#4310](https://github.com/reactivex/rxjs/issues/4310)) ([2399f6e](https://github.com/reactivex/rxjs/commit/2399f6e)) * **combineLatest:** improve typings for combineLatest ([#4470](https://github.com/reactivex/rxjs/issues/4470)) ([40c3d9f](https://github.com/reactivex/rxjs/commit/40c3d9f)) * **compat:** remove internal from import locations ([#4498](https://github.com/reactivex/rxjs/issues/4498)) ([a6c0017](https://github.com/reactivex/rxjs/commit/a6c0017)), closes [#4070](https://github.com/reactivex/rxjs/issues/4070) * **endWith:** ability to endWith different types ([#4183](https://github.com/reactivex/rxjs/issues/4183)) ([#4185](https://github.com/reactivex/rxjs/issues/4185)) ([83533d1](https://github.com/reactivex/rxjs/commit/83533d1)) * **fromEventPattern:** improve typings for fromEventPattern ([#4496](https://github.com/reactivex/rxjs/issues/4496)) ([037f53d](https://github.com/reactivex/rxjs/commit/037f53d)) * **Observable:** Fix Observable.subscribe to add operator TeardownLogic to returned Subscription. ([#4434](https://github.com/reactivex/rxjs/issues/4434)) ([f28955f](https://github.com/reactivex/rxjs/commit/f28955f)) * **subscribe:** Deprecate null starting parameter signatures for subscribe ([#4202](https://github.com/reactivex/rxjs/issues/4202)) ([c85ddf6](https://github.com/reactivex/rxjs/commit/c85ddf6)) * **combineLatest:** support passing union types ([ffda319](https://github.com/reactivex/rxjs/commit/ffda319)) * **from:** support passing union types ([eb1d596](https://github.com/reactivex/rxjs/commit/eb1d596)) * **withLatestFrom:** support passing union types ([1e19a24](https://github.com/reactivex/rxjs/commit/1e19a24)) * **zip:** support passing union types ([0d87f52](https://github.com/reactivex/rxjs/commit/0d87f52)) * **multicast:** support returning union types from projection ([e9e9041](https://github.com/reactivex/rxjs/commit/e9e9041)) * **exhaustMap:** support returning union types from projection ([ff1f5dc](https://github.com/reactivex/rxjs/commit/ff1f5dc)) * **merge:** support union type inference for merge operators ([c2ac39c](https://github.com/reactivex/rxjs/commit/c2ac39c)) * **catchError:** support union type returns ([8350622](https://github.com/reactivex/rxjs/commit/8350622)) * **switchMap:** support union type returns ([32d35fd](https://github.com/reactivex/rxjs/commit/32d35fd)) * **defer:** support union types passed ([5aea50e](https://github.com/reactivex/rxjs/commit/5aea50e)) * **race:** Update typings to support proper return types ([#4465](https://github.com/reactivex/rxjs/issues/4465)) ([0042846](https://github.com/reactivex/rxjs/commit/0042846)) * **VirtualTimeScheduler:** rework flush so it won't lose actions ([#4433](https://github.com/reactivex/rxjs/issues/4433)) ([d068bc9](https://github.com/reactivex/rxjs/commit/d068bc9)) * **WebSocketSubject:** fix subject failing to close socket ([#4446](https://github.com/reactivex/rxjs/issues/4446)) ([dcfa52b](https://github.com/reactivex/rxjs/commit/dcfa52b)) ### Features * **shareReplay:** Add configuration object for named arguments, and add argument to support unsubscribing from source observable by `refCount` when all resulting subscriptions have unsubscribed. The default behavior is to leave the source subscription running. * **mergeScan:** Add index to the accumulator function ([#4458](https://github.com/reactivex/rxjs/issues/4458)) ([f5e143d](https://github.com/reactivex/rxjs/commit/f5e143d)), closes [#4441](https://github.com/reactivex/rxjs/issues/4441) * **range:** accept one argument ([#4360](https://github.com/reactivex/rxjs/issues/4360)) ([a388578](https://github.com/reactivex/rxjs/commit/a388578)) * **takeWhile:** add an `inclusive` option to the operator which causes to emit final value ([#4115](https://github.com/reactivex/rxjs/issues/4115)) ([6e7f407](https://github.com/reactivex/rxjs/commit/6e7f407)) ### Performance Improvements * **internal:** optimize Subscription#add() for the common case ([#4489](https://github.com/reactivex/rxjs/issues/4489)) ([bdd201c](https://github.com/reactivex/rxjs/commit/bdd201c)) * **internal:** use strict equality for isObject() ([#4493](https://github.com/reactivex/rxjs/issues/4493)) ([fc84a00](https://github.com/reactivex/rxjs/commit/fc84a00)) * **Subscription:** use `instanceof` to avoid megamorphic LoadIC ([#4499](https://github.com/reactivex/rxjs/issues/4499)) ([065b4e3](https://github.com/reactivex/rxjs/commit/065b4e3)) <a name="6.3.3"></a> ## [6.3.3](https://github.com/reactivex/rxjs/compare/6.3.2...6.3.3) (2018-09-25) ### Bug Fixes * **pipe:** align static pipe to Observable pipe rest parameters overl… ([#4112](https://github.com/reactivex/rxjs/issues/4112)) ([8c607e9](https://github.com/reactivex/rxjs/commit/8c607e9)), closes [#4109](https://github.com/reactivex/rxjs/issues/4109) [#4109](https://github.com/reactivex/rxjs/issues/4109) * **RxJS:** each instance of RxJS now has a unique Subscriber symbol ([0972c56](https://github.com/reactivex/rxjs/commit/0972c56)) * **subscribe:** report errors that occur in subscribe after the initial error ([#4089](https://github.com/reactivex/rxjs/issues/4089)) ([9b4b2bc](https://github.com/reactivex/rxjs/commit/9b4b2bc)), closes [#3803](https://github.com/reactivex/rxjs/issues/3803) * **Subscriber:** Can no longer subscribe to itself in a circular manner ([#4106](https://github.com/reactivex/rxjs/issues/4106)) ([e623ec6](https://github.com/reactivex/rxjs/commit/e623ec6)), closes [#4095](https://github.com/reactivex/rxjs/issues/4095) * **Subscriber:** use only local Subscriber instances ([50ee0a7](https://github.com/reactivex/rxjs/commit/50ee0a7)) * **TypeScript:** ensure RxJS builds with TS@next as well ([f03e790](https://github.com/reactivex/rxjs/commit/f03e790)) <a name="6.3.2"></a> ## [6.3.2](https://github.com/reactivex/rxjs/compare/6.3.1...6.3.2) (2018-09-04) ### Bug Fixes * **node:** will no longer error mixing RxJS 6.3 and 6.2 ([#4078](https://github.com/reactivex/rxjs/issues/4078)) ([69d9ccf](https://github.com/reactivex/rxjs/commit/69d9ccf)), closes [#4077](https://github.com/reactivex/rxjs/issues/4077) <a name="6.3.1"></a> ## [6.3.1](https://github.com/reactivex/rxjs/compare/6.3.0...6.3.1) (2018-08-31) ### Bug Fixes * **mergeMap:** fix nested mergeMaps ([#4072](https://github.com/reactivex/rxjs/issues/4072)) ([0ab701b](https://github.com/reactivex/rxjs/commit/0ab701b)), closes [#4071](https://github.com/reactivex/rxjs/issues/4071) <a name="6.3.0"></a> # [6.3.0](https://github.com/reactivex/rxjs/compare/6.2.2...6.3.0) (2018-08-30) ### Bug Fixes * **find:** unsubscribe from source when found ([#3968](https://github.com/reactivex/rxjs/issues/3968)) ([fd01f7b](https://github.com/reactivex/rxjs/commit/fd01f7b)) * convert [@internal](https://github.com/internal) comment to JSDoc ([#3932](https://github.com/reactivex/rxjs/issues/3932)) ([f8a9d6e](https://github.com/reactivex/rxjs/commit/f8a9d6e)) * **AjaxObservable:** notify with error if fails to parse json response ([#3139](https://github.com/reactivex/rxjs/issues/3139)) ([d8231e2](https://github.com/reactivex/rxjs/commit/d8231e2)), closes [#3138](https://github.com/reactivex/rxjs/issues/3138) * **catchError:** stop listening to a synchronous inner-obervable when unsubscribed ([456ef33](https://github.com/reactivex/rxjs/commit/456ef33)) * **distinctUntilKeyChanged:** improved key typing with keyof T ([#3988](https://github.com/reactivex/rxjs/issues/3988)) ([4ec4ff1](https://github.com/reactivex/rxjs/commit/4ec4ff1)) * **exhaustMap:** stop listening to a synchronous inner-obervable when unsubscribed ([ee1a339](https://github.com/reactivex/rxjs/commit/ee1a339)) * **find:** add undefined to return type ([#3970](https://github.com/reactivex/rxjs/issues/3970)) ([5a6c90f](https://github.com/reactivex/rxjs/commit/5a6c90f)), closes [#3969](https://github.com/reactivex/rxjs/issues/3969) * **IE10:** Remove dependency on Object.setPrototypeOf ([#3967](https://github.com/reactivex/rxjs/issues/3967)) ([5c52a73](https://github.com/reactivex/rxjs/commit/5c52a73)), closes [#3966](https://github.com/reactivex/rxjs/issues/3966) * **mergeAll:** add source subscription to composite before actually subscribing ([#2479](https://github.com/reactivex/rxjs/issues/2479)) ([40852ff](https://github.com/reactivex/rxjs/commit/40852ff)), closes [#2476](https://github.com/reactivex/rxjs/issues/2476) * **mergeScan:** stop listening to a synchronous inner-obervable when unsubscribed ([c4002f3](https://github.com/reactivex/rxjs/commit/c4002f3)) * **Observable:** forEach will no longer next values after an error ([b4bad1f](https://github.com/reactivex/rxjs/commit/b4bad1f)) * **Observable:** use more granular Observable exports in compat mode ([#3974](https://github.com/reactivex/rxjs/issues/3974)) ([3f75564](https://github.com/reactivex/rxjs/commit/3f75564)) * **onErrorResumeNext:** stop listening to a synchronous inner-obervable when unsubscribed ([1d14277](https://github.com/reactivex/rxjs/commit/1d14277)) * **pipe:** replace rest parameters overload ([#3945](https://github.com/reactivex/rxjs/issues/3945)) ([872b0ec](https://github.com/reactivex/rxjs/commit/872b0ec)), closes [#3841](https://github.com/reactivex/rxjs/issues/3841) * **skipUntil:** stop listening to a synchronous notifier after its first nexted value ([1c257db](https://github.com/reactivex/rxjs/commit/1c257db)) * **startWith:** allow empty type signature and passing a different type ([b7866a0](https://github.com/reactivex/rxjs/commit/b7866a0)) * **subscribable:** make subscribe() signature match Observable ([#4050](https://github.com/reactivex/rxjs/issues/4050)) ([865d8d7](https://github.com/reactivex/rxjs/commit/865d8d7)), closes [#3891](https://github.com/reactivex/rxjs/issues/3891) * **subscriber:** unsubscribe parents on error/complete ([ad8131b](https://github.com/reactivex/rxjs/commit/ad8131b)) * **switchMap:** stop listening to a synchronous inner-obervable when unsubscribed ([260d52a](https://github.com/reactivex/rxjs/commit/260d52a)) * **takeUntil:** takeUntil should subscribe to the source if notifier sync completes without emitting ([#4039](https://github.com/reactivex/rxjs/issues/4039)) ([21fd0b4](https://github.com/reactivex/rxjs/commit/21fd0b4)), closes [#3504](https://github.com/reactivex/rxjs/issues/3504) * **testscheduler:** type arguments to Observable creation functions ([#3928](https://github.com/reactivex/rxjs/issues/3928)) ([0e30ef1](https://github.com/reactivex/rxjs/commit/0e30ef1)) ### Features * **delayWhen:** add index to the selector function ([#2473](https://github.com/reactivex/rxjs/issues/2473)) ([0979d31](https://github.com/reactivex/rxjs/commit/0979d31)) * **forEach:** deprecating passing promise constructor ([5178ab9](https://github.com/reactivex/rxjs/commit/5178ab9)) * **TestScheduler:** Add subscription schedule to expectObservable ([#3997](https://github.com/reactivex/rxjs/issues/3997)) ([0d20255](https://github.com/reactivex/rxjs/commit/0d20255)) <a name="6.2.2"></a> ## [6.2.2](https://github.com/reactivex/rxjs/compare/6.2.1...6.2.2) (2018-07-13) ### Bug Fixes * **first:** improved type gaurds for TypeScript ([3e12f7a](https://github.com/reactivex/rxjs/commit/3e12f7a)) * **last:** improved type gaurds for TypeScript ([3e12f7a](https://github.com/reactivex/rxjs/commit/3e12f7a)) <a name="6.2.1"></a> ## [6.2.1](https://github.com/reactivex/rxjs/compare/6.2.0...6.2.1) (2018-06-12) ### Bug Fixes * **ci:** do not trigger postbuild script on PR ([f82c085](https://github.com/reactivex/rxjs/commit/f82c085)) * **delayWhen:** Emit source value if duration selector completes synchronously ([#3664](https://github.com/reactivex/rxjs/issues/3664)) ([2c43af7](https://github.com/reactivex/rxjs/commit/2c43af7)), closes [#3663](https://github.com/reactivex/rxjs/issues/3663) * **docs:** fix broken github links ([#3802](https://github.com/reactivex/rxjs/issues/3802)) ([9f9bf9b](https://github.com/reactivex/rxjs/commit/9f9bf9b)) * **docs:** fix code examples ([#3784](https://github.com/reactivex/rxjs/issues/3784)) ([a95441b](https://github.com/reactivex/rxjs/commit/a95441b)) * **from:** Objects implementing Symbol.observable take precedence over other types ([80ceea0](https://github.com/reactivex/rxjs/commit/80ceea0)) * **fromEvent:** Support React Native and node-compatible event sources. ([#3821](https://github.com/reactivex/rxjs/issues/3821)) ([1969f18](https://github.com/reactivex/rxjs/commit/1969f18)) * **Observable.prototype.pipe:** TS typings now more correct for >8 parameters ([#3789](https://github.com/reactivex/rxjs/issues/3789)) ([ad010ea](https://github.com/reactivex/rxjs/commit/ad010ea)) * **subscribe:** ignore syncError when deprecated ([#3749](https://github.com/reactivex/rxjs/issues/3749)) ([f94560c](https://github.com/reactivex/rxjs/commit/f94560c)) * **Symbol.observable:** make observable declaration readonly ([#3697](https://github.com/reactivex/rxjs/issues/3697)) ([#3773](https://github.com/reactivex/rxjs/issues/3773)) ([e1c203f](https://github.com/reactivex/rxjs/commit/e1c203f)) * **TypeScript:** resolved typings issue for TS 3.0 ([bf2cdeb](https://github.com/reactivex/rxjs/commit/bf2cdeb)) * **typings:** allow bufferCreationInterval null for bufferTime ([#3734](https://github.com/reactivex/rxjs/issues/3734)) ([0bda9cd](https://github.com/reactivex/rxjs/commit/0bda9cd)), closes [#3728](https://github.com/reactivex/rxjs/issues/3728) ### Performance Improvements * remove comments from js-files ([#3760](https://github.com/reactivex/rxjs/issues/3760)) ([bb2c334](https://github.com/reactivex/rxjs/commit/bb2c334)) <a name="6.2.0"></a> # [6.2.0](https://github.com/ReactiveX/RxJS/compare/6.1.0...6.2.0) (2018-05-22) ### Bug Fixes * **ajax:** Handle timeouts as errors ([#3653](https://github.com/ReactiveX/RxJS/issues/3653)) ([e4128ea](https://github.com/ReactiveX/RxJS/commit/e4128ea)) * **ajax:** RxJS v6 TimeoutError is missing name property ([576d943](https://github.com/ReactiveX/RxJS/commit/576d943)) * **isObservable:** Fix throwing error when testing isObservable(null) ([#3688](https://github.com/ReactiveX/RxJS/issues/3688)) ([c9acc61](https://github.com/ReactiveX/RxJS/commit/c9acc61)) * **range:** Range should be same for every subscriber ([#3707](https://github.com/ReactiveX/RxJS/issues/3707)) ([9642133](https://github.com/ReactiveX/RxJS/commit/9642133)) * **skipUntil:** fix skipUntil when innerSubscription is null ([#3686](https://github.com/ReactiveX/RxJS/issues/3686)) ([4226432](https://github.com/ReactiveX/RxJS/commit/4226432)) * **TestScheduler:** restore run changes upon error ([27cb9b6](https://github.com/ReactiveX/RxJS/commit/27cb9b6)) * **TimeoutError:** Add name to TimeoutError ([44042d0](https://github.com/ReactiveX/RxJS/commit/44042d0)) * **WebSocketSubject:** Check to see if WebSocket exists in global scope ([#3694](https://github.com/ReactiveX/RxJS/issues/3694)) ([2db0788](https://github.com/ReactiveX/RxJS/commit/2db0788)) ### Features * **endWith:** add new operator endWith ([#3679](https://github.com/ReactiveX/RxJS/issues/3679)) ([537fe7d](https://github.com/ReactiveX/RxJS/commit/537fe7d)) <a name="6.1.0"></a> # [6.1.0](https://github.com/ReactiveX/RxJS/compare/6.0.0...6.1.0) (2018-05-03) ### Bug Fixes * **audit:** will not crash if duration is synchronous ([#3608](https://github.com/ReactiveX/RxJS/issues/3608)) ([76b7e27](https://github.com/ReactiveX/RxJS/commit/76b7e27)), closes [#2743](https://github.com/ReactiveX/RxJS/issues/2743) * **delay:** fix memory leak ([#3605](https://github.com/ReactiveX/RxJS/issues/3605)) ([96f05b0](https://github.com/ReactiveX/RxJS/commit/96f05b0)) ### Features * **isObservable:** a new method for checking to see if an object is an RxJS Observable ([edb33e5](https://github.com/ReactiveX/RxJS/commit/edb33e5)) <a name="6.0.0"></a> # [6.0.0](https://github.com/ReactiveX/RxJS/compare/6.0.0-uncanny-rc.7...v6.0.0) (2018-04-24) ### Bug Fixes * **websocket:** no longer throws errors in operators applied to it ([#3577](https://github.com/ReactiveX/RxJS/issues/3577)) ([cb38ddf](https://github.com/ReactiveX/RxJS/commit/cb38ddf)) ### Code Refactoring * **webSocket:** rename back to webSocket ala 5.0 ([#3590](https://github.com/ReactiveX/RxJS/issues/3590)) ([d5658fe](https://github.com/ReactiveX/RxJS/commit/d5658fe)) ### Features * **testing:** Add testScheduler.run() helper ([2d5b3b2](https://github.com/ReactiveX/RxJS/commit/2d5b3b2)) * **testing:** testScheduler.run() supports time progression syntax ([9322b7d](https://github.com/ReactiveX/RxJS/commit/9322b7d)) ### BREAKING CHANGES * **webSocket:** UNBREAKING websocket to be named `webSocket` again, just like it was in 5.0. Now you should import from `rxjs/webSocket` <a name="6.0.0-uncanny-rc.7"></a> # [6.0.0-uncanny-rc.7](https://github.com/ReactiveX/RxJS/compare/6.0.0-ucandoit-rc.6...v6.0.0-uncanny-rc.7) (2018-04-13) ### Bug Fixes * **interop:** functions with `[Symbol.observable]` on them will now be accepted in operators like `mergeMap`, `from`, etc ([#3562](https://github.com/ReactiveX/RxJS/issues/3562)) ([c9570df](https://github.com/ReactiveX/RxJS/commit/c9570df)) * **migrations:** change the version the migration applies to ([#3564](https://github.com/ReactiveX/RxJS/issues/3564)) ([9217a03](https://github.com/ReactiveX/RxJS/commit/9217a03)) * **rxjs:** no longer requires `dom` lib ([#3566](https://github.com/ReactiveX/RxJS/issues/3566)) ([8b33ee2](https://github.com/ReactiveX/RxJS/commit/8b33ee2)) * **throttleTime:** emit throttled values when complete if trailing=true ([#3559](https://github.com/ReactiveX/RxJS/issues/3559)) ([3e846f2](https://github.com/ReactiveX/RxJS/commit/3e846f2)), closes [#3351](https://github.com/ReactiveX/RxJS/issues/3351) * **websocket:** export WebSocketSubject, WebSocketSubjectConfig from rxjs/websocket ([#3557](https://github.com/ReactiveX/RxJS/issues/3557)) ([c365405](https://github.com/ReactiveX/RxJS/commit/c365405)) <a name="6.0.0-ucandoit-rc.6"></a> # [6.0.0-ucandoit-rc.6](https://github.com/ReactiveX/RxJS/compare/6.0.0-uber-rc.5...v6.0.0-ucandoit-rc.6) (2018-04-13) ### Bug Fixes * **migrations:** make sure collection.json is present ([63e10a8](https://github.com/ReactiveX/RxJS/commit/63e10a8)) <a name="6.0.0-uber-rc.5"></a> # [6.0.0-uber-rc.5](https://github.com/ReactiveX/RxJS/compare/6.0.0-turbo-rc.4...6.0.0-uber-rc.5) (2018-04-13) ### Bug Fixes * **migrations:** deploy compiled JS rather than just the TS files. ([9aed72f](https://github.com/ReactiveX/RxJS/commit/9aed72f)) <a name="6.0.0-turbo-rc.4"></a> # [6.0.0-turbo-rc.4](https://github.com/ReactiveX/RxJS/compare/6.0.0-terrific-rc.3...6.0.0-turbo-rc.4) (2018-04-12) ### Bug Fixes * **groupBy:** reexporting the GroupedObservable type ([#3556](https://github.com/ReactiveX/RxJS/issues/3556)) ([12d4933](https://github.com/ReactiveX/RxJS/commit/12d4933)), closes [#3551](https://github.com/ReactiveX/RxJS/issues/3551) * **migrations:** build now properly copies migration into package ([#3555](https://github.com/ReactiveX/RxJS/issues/3555)) ([329a145](https://github.com/ReactiveX/RxJS/commit/329a145)) <a name="6.0.0-terrific-rc.3"></a> # [6.0.0-terrific-rc.3](https://github.com/ReactiveX/RxJS/compare/6.0.0-tenacious-rc.2...v6.0.0-terrific-rc.3) (2018-04-11) ### Features * **schematics:** add migration schematics for schematics users ([20a2f07](https://github.com/ReactiveX/RxJS/commit/20a2f07)) <a name="6.0.0-tenacious-rc.2"></a> # [6.0.0-tenacious-rc.2](https://github.com/ReactiveX/RxJS/compare/6.0.0-tactical-rc.1...v6.0.0-tenacious-rc.2) (2018-04-11) ### Bug Fixes * **compat:** fix first & last operators so undefined arguments won't create empty values ([#3542](https://github.com/ReactiveX/RxJS/issues/3542)) ([a327db2](https://github.com/ReactiveX/RxJS/commit/a327db2)) * **node/TS:** eliminate incompatable types to protected properties ([#3544](https://github.com/ReactiveX/RxJS/issues/3544)) ([21dd3bd](https://github.com/ReactiveX/RxJS/commit/21dd3bd)) ### BREAKING CHANGES * **NodeJS** Dropping support for non-LTS versions of Node. <a name="6.0.0-tactical-rc.1"></a> # [6.0.0-tactical-rc.1](https://github.com/ReactiveX/RxJS/compare/6.0.0-rc.0...6.0.0-tactical-rc.1) (2018-04-07) Why "tactical"? Because I *TOTALLY MEANT* to ruin the release names by publishing an amazingly funny April Fool's joke about smooshMap. So this was "tactical". Super tactical. So very tactical. ### Bug Fixes * **closure-compiler:** adds nocollapse to static members ([#3519](https://github.com/ReactiveX/RxJS/issues/3519)) ([8758a5d](https://github.com/ReactiveX/RxJS/commit/8758a5d)) * **closure-compiler:** remove internal flag from _isScalar ([#3520](https://github.com/ReactiveX/RxJS/issues/3520)) ([b3a657d](https://github.com/ReactiveX/RxJS/commit/b3a657d)) * **closure-compiler:** remove top level throws ([#3518](https://github.com/ReactiveX/RxJS/issues/3518)) ([b069473](https://github.com/ReactiveX/RxJS/commit/b069473)) * **closure-compiler:** removes bad \[@params](https://github.com/params) comments that caused issues ([#3521](https://github.com/ReactiveX/RxJS/issues/3521)) ([09c874c](https://github.com/ReactiveX/RxJS/commit/09c874c)) * **compat:** deprecate Observable.if/throw ([#3527](https://github.com/ReactiveX/RxJS/issues/3527)) ([3116275](https://github.com/ReactiveX/RxJS/commit/3116275)) * **compat:** export TeardownLogic ([#3532](https://github.com/ReactiveX/RxJS/issues/3532)) ([0c76e64](https://github.com/ReactiveX/RxJS/commit/0c76e64)), closes [#3531](https://github.com/ReactiveX/RxJS/issues/3531) * **compat:** remove observable/scalar deep import as it wasn't previously available ([4566001](https://github.com/ReactiveX/RxJS/commit/4566001)) * **Scheduler:** export but deprecate ([#3522](https://github.com/ReactiveX/RxJS/issues/3522)) ([a3e1fb8](https://github.com/ReactiveX/RxJS/commit/a3e1fb8)) * **skipUntil:** properly manages notifier subscription ([889f84a](https://github.com/ReactiveX/RxJS/commit/889f84a)), closes [#1886](https://github.com/ReactiveX/RxJS/issues/1886) * fix type mismatch in NodeStyleEventEmitter ([#3530](https://github.com/ReactiveX/RxJS/issues/3530)) ([3f51ddd](https://github.com/ReactiveX/RxJS/commit/3f51ddd)) * **sourcemaps:** fix mappings for source maps so they will work ([#3523](https://github.com/ReactiveX/RxJS/issues/3523)) ([32e7f75](https://github.com/ReactiveX/RxJS/commit/32e7f75)), closes [#3479](https://github.com/ReactiveX/RxJS/issues/3479) ### Features * **compat:** add Observable extension classes with static create() ([ecd7f68](https://github.com/ReactiveX/RxJS/commit/ecd7f68)) * **compat:** add rxjs/interfaces exports ([ba5c266](https://github.com/ReactiveX/RxJS/commit/ba5c266)) <a name="6.0.0-rc.0"></a> # [6.0.0-rc.0](https://github.com/ReactiveX/RxJS/compare/6.0.0-beta.4...6.0.0-rc.0) (2018-03-31) ### Bug Fixes * **ajax:** properly encode body with form data that includes URLs ([#3502](https://github.com/ReactiveX/RxJS/issues/3502)) ([4455d21](https://github.com/ReactiveX/RxJS/commit/4455d21)), closes [#2399](https://github.com/ReactiveX/RxJS/issues/2399) * **bindNodeCallback:** better type inference ([932bb7a](https://github.com/ReactiveX/RxJS/commit/932bb7a)) * **elementAt:** now allows falsy defaultValues ([13706e7](https://github.com/ReactiveX/RxJS/commit/13706e7)) * **lint_perf:** fix lint issues with newer perf tests ([1013754](https://github.com/ReactiveX/RxJS/commit/1013754)) * **throttle:** now properly trailing throttles for individual values ([#3505](https://github.com/ReactiveX/RxJS/issues/3505)) ([3db18d1](https://github.com/ReactiveX/RxJS/commit/3db18d1)), closes [#2864](https://github.com/ReactiveX/RxJS/issues/2864) ### Features * **takeUntil:** no longer subscribes to source if notifier synchronously emits ([#3504](https://github.com/ReactiveX/RxJS/issues/3504)) ([7b8a3e3](https://github.com/ReactiveX/RxJS/commit/7b8a3e3)), closes [#2189](https://github.com/ReactiveX/RxJS/issues/2189) ### Performance Improvements * **pluck,bufferTime,asObservable:** add performance tests for pluck(), bufferTime() and asObservable() operators ([#2491](https://github.com/ReactiveX/RxJS/issues/2491)) ([24506b3](https://github.com/ReactiveX/RxJS/commit/24506b3)) * **ReplaySubject:** slightly improved performance ([#2677](https://github.com/ReactiveX/RxJS/issues/2677)) ([9fea36d](https://github.com/ReactiveX/RxJS/commit/9fea36d)) ### BREAKING CHANGES * **throttle:** This changes the behavior of throttle, in particular throttling with both leading and trailing behaviors set to true, to more closely match the throttling behavior of lodash and other libraries. Throttling now starts immediately after any emission from the observable, and values will not be double emitted for both leading and trailing values <a name="6.0.0-beta.4"></a> # [6.0.0-beta.4](https://github.com/ReactiveX/RxJS/compare/6.0.0-beta.3...v6.0.0-beta.4) (2018-03-29) ### Bug Fixes * **bindCallback:** add better type overloads ([#3480](https://github.com/ReactiveX/RxJS/issues/3480)) ([037cf34](https://github.com/ReactiveX/RxJS/commit/037cf34)) * **compat:** add IScheduler to compat/Scheduler ([0a67df6](https://github.com/ReactiveX/RxJS/commit/0a67df6)) ### Features * **compat:** add all utilities to internal-compatibility ([a9ecfe7](https://github.com/ReactiveX/RxJS/commit/a9ecfe7)) * **websocket:** Add serializer/deserializer config settings ([#3489](https://github.com/ReactiveX/RxJS/issues/3489)) ([8d44124](https://github.com/ReactiveX/RxJS/commit/8d44124)) ### BREAKING CHANGES * **websocket:** WebSocketSubject will now JSON serialize all messages sent over it by default, to return to the old behavior, pass a config setting of `serializer: x => x` like so: `websocket({ url, serializer: x => x })` <a name="6.0.0-beta.3"></a> # [6.0.0-beta.3](https://github.com/ReactiveX/RxJS/compare/6.0.0-beta.1...6.0.0-beta.3) (2018-03-27) ### Bug Fixes * **build:** update build-optimizer and point to correct sources ([6717a01](https://github.com/ReactiveX/RxJS/commit/6717a01)) * **node:** Subscriber no longer trampled if from another copy of rxjs ([371b658](https://github.com/ReactiveX/RxJS/commit/371b658)) * **Observable:** empty ctor returns valid Observable ([#3464](https://github.com/ReactiveX/RxJS/issues/3464)) ([58b8ebc](https://github.com/ReactiveX/RxJS/commit/58b8ebc)) * **subscribeOn:** add subscribeOn back to the distribution ([d6556f2](https://github.com/ReactiveX/RxJS/commit/d6556f2)) <a name="6.0.0-beta.2"></a> # [6.0.0-beta.2](https://github.com/ReactiveX/RxJS/compare/6.0.0-beta.1...6.0.0-beta.2) (2018-03-24) ### Bug Fixes * **build:** update build-optimizer and point to correct sources ([6717a01](https://github.com/ReactiveX/RxJS/commit/6717a01)) * **Observable:** empty ctor returns valid Observable ([#3464](https://github.com/ReactiveX/RxJS/issues/3464)) ([58b8ebc](https://github.com/ReactiveX/RxJS/commit/58b8ebc)) * **subscribeOn:** add subscribeOn back to the distribution ([d6556f2](https://github.com/ReactiveX/RxJS/commit/d6556f2)) <a name="6.0.0-beta.1"></a> # [6.0.0-beta.1](https://github.com/ReactiveX/RxJS/compare/6.0.0-beta.0...v6.0.0-beta.1) (2018-03-21) ### Bug Fixes * remove duplicate Subscribable<T> interface declaration ([#3450](https://github.com/ReactiveX/RxJS/issues/3450)) ([ac78d89](https://github.com/ReactiveX/RxJS/commit/ac78d89)) * **compat:** add package.json for internal-compatibility package ([#3455](https://github.com/ReactiveX/RxJS/issues/3455)) ([3b306ed](https://github.com/ReactiveX/RxJS/commit/3b306ed)) * **config.useDeprecatedSynchronousErrorThrowing:** reentrant error throwing no longer trapped ([#3449](https://github.com/ReactiveX/RxJS/issues/3449)) ([0892a2d](https://github.com/ReactiveX/RxJS/commit/0892a2d)), closes [#3161](https://github.com/ReactiveX/RxJS/issues/3161) ### Features * **compat:** add interfaces export ([d8f8122](https://github.com/ReactiveX/RxJS/commit/d8f8122)) * **compat:** add rxjs/observable/dom/* APIs to compatibility package ([d9a618f](https://github.com/ReactiveX/RxJS/commit/d9a618f)) <a name="6.0.0-beta.0"></a> # [6.0.0-beta.0](https://github.com/ReactiveX/RxJS/compare/6.0.0-alpha.3...6.0.0-beta.0) (2018-03-16) ### Bug Fixes * **AjaxObservable:** 1xx,2xx,3xx requests shouldn't error, only 4xx,5xx ([#3438](https://github.com/ReactiveX/RxJS/issues/3438)) ([2128932](https://github.com/ReactiveX/RxJS/commit/2128932)) * **compat:** adjustments to get rxjs-compat to build correctly ([dea6964](https://github.com/ReactiveX/RxJS/commit/dea6964)) * **config:** expose configuration via rxjs exports ([#3441](https://github.com/ReactiveX/RxJS/issues/3441)) ([4287424](https://github.com/ReactiveX/RxJS/commit/4287424)) * **config:** make sure that Promise config is undefined initially ([#3440](https://github.com/ReactiveX/RxJS/issues/3440)) ([469afe8](https://github.com/ReactiveX/RxJS/commit/469afe8)) * **ESM:** Add [operators|ajax|websocket|testing]/package.json for ESM support, fixes [#3227](https://github.com/ReactiveX/RxJS/issues/3227) ([#3356](https://github.com/ReactiveX/RxJS/issues/3356)) ([725dcb4](https://github.com/ReactiveX/RxJS/commit/725dcb4)) * **forkJoin:** fix forkJoin typings for forkJoin(Observable<any>[]) ([#3436](https://github.com/ReactiveX/RxJS/issues/3436)) ([17c7f8f](https://github.com/ReactiveX/RxJS/commit/17c7f8f)) * **fromEvent:** Defines toString to fix Closure compilations ([#3417](https://github.com/ReactiveX/RxJS/issues/3417)) ([1558b43](https://github.com/ReactiveX/RxJS/commit/1558b43)) * **fromEvent:** pass options in unsubscribe ([f1872b0](https://github.com/ReactiveX/RxJS/commit/f1872b0)), closes [#3349](https://github.com/ReactiveX/RxJS/issues/3349) * **publishReplay:** type inference improved ([#3437](https://github.com/ReactiveX/RxJS/issues/3437)) ([dd7c9f1](https://github.com/ReactiveX/RxJS/commit/dd7c9f1)), closes [#3260](https://github.com/ReactiveX/RxJS/issues/3260) * **rxjs:** add exports for symbols/interfaces that were missing ([#3380](https://github.com/ReactiveX/RxJS/issues/3380)) ([1622ee0](https://github.com/ReactiveX/RxJS/commit/1622ee0)) * **rxjs:** make sure esm imports from index.js by default, not Rx.js ([#3316](https://github.com/ReactiveX/RxJS/issues/3316)) ([c2b00f4](https://github.com/ReactiveX/RxJS/commit/c2b00f4)), closes [#3315](https://github.com/ReactiveX/RxJS/issues/3315) * **rxjs:** once again exports custom error types ([#3371](https://github.com/ReactiveX/RxJS/issues/3371)) ([4465a9f](https://github.com/ReactiveX/RxJS/commit/4465a9f)) * **rxjs:** remove types.ts importing from itself. ([#3383](https://github.com/ReactiveX/RxJS/issues/3383)) ([8fd50ad](https://github.com/ReactiveX/RxJS/commit/8fd50ad)) * **spec:** get tests running using compatibility package ([916e968](https://github.com/ReactiveX/RxJS/commit/916e968)) * correct internal module paths to be systemjs compatible ([#3412](https://github.com/ReactiveX/RxJS/issues/3412)) ([35abc9d](https://github.com/ReactiveX/RxJS/commit/35abc9d)) * **Symbol.iterator:** correctly handle case where Symbol constructor itself is not defined ([#3394](https://github.com/ReactiveX/RxJS/issues/3394)) ([6725be1](https://github.com/ReactiveX/RxJS/commit/6725be1)) * **typings:** fixed some cases where multicast and publish would not return a ConnectableObservable ([#3320](https://github.com/ReactiveX/RxJS/issues/3320)) ([ddffecc](https://github.com/ReactiveX/RxJS/commit/ddffecc)) * reexport Symbol.observable typings patch ([4c4d7b0](https://github.com/ReactiveX/RxJS/commit/4c4d7b0)) * remove the root operators.ts because it overshadows operators/package.json ([184b6d4](https://github.com/ReactiveX/RxJS/commit/184b6d4)) ### Code Refactoring * **Observable.if:** remove ts hacks from Observable ([f46f261](https://github.com/ReactiveX/RxJS/commit/f46f261)) * **Rx.ts:** move Rx.ts to internal ([#3400](https://github.com/ReactiveX/RxJS/issues/3400)) ([7ad2119](https://github.com/ReactiveX/RxJS/commit/7ad2119)) ### Features * **ajax:** default to opting into CORS ([#3442](https://github.com/ReactiveX/RxJS/issues/3442)) ([aa3bf57](https://github.com/ReactiveX/RxJS/commit/aa3bf57)), closes [#3273](https://github.com/ReactiveX/RxJS/issues/3273) * **bindCallback:** remove result selector ([2535641](https://github.com/ReactiveX/RxJS/commit/2535641)) * **bindNodeCallback:** remove resultSelector ([26e6e5c](https://github.com/ReactiveX/RxJS/commit/26e6e5c)) * **compat:** add compatability package definition ([40aca82](https://github.com/ReactiveX/RxJS/commit/40aca82)) * **compat:** add concat operator to compatibility layer ([6e84e78](https://github.com/ReactiveX/RxJS/commit/6e84e78)) * **compat:** add legacy reexport compat layer for 'rxjs/Observable' and other top-level symbols ([70e562b](https://github.com/ReactiveX/RxJS/commit/70e562b)) * **compat:** add Rx.ts to rxjs-compat ([df25de1](https://github.com/ReactiveX/RxJS/commit/df25de1)) * **compat:** combatability mode for combineLatest ([fd86df5](https://github.com/ReactiveX/RxJS/commit/fd86df5)) * **compat:** compatibility mode for merge operator ([ffce980](https://github.com/ReactiveX/RxJS/commit/ffce980)) * **compat:** compatibility mode for zip operator ([9f131d0](https://github.com/ReactiveX/RxJS/commit/9f131d0)) * **compat:** make Rx.ts for compatability layer work as the default for rxjs-compat ([d43a4c2](https://github.com/ReactiveX/RxJS/commit/d43a4c2)) * **compat:** set up correct imports & get build working for rxjs-comapt ([1a0dc97](https://github.com/ReactiveX/RxJS/commit/1a0dc97)) * **deprecated-error-handling-warning:** add console warning when code sets the flag to bad mode ([49be56a](https://github.com/ReactiveX/RxJS/commit/49be56a)) * **error-handling:** add deprecated sync error handling behind a flag ([583cd1d](https://github.com/ReactiveX/RxJS/commit/583cd1d)) * **exhaustMap:** simplify interface ([42589d0](https://github.com/ReactiveX/RxJS/commit/42589d0)) * **first:** simplify interface ([a011338](https://github.com/ReactiveX/RxJS/commit/a011338)) * **forkJoin:** simplify interface ([4d2338b](https://github.com/ReactiveX/RxJS/commit/4d2338b)) * **fromEvent:** remove resultSelector ([197f449](https://github.com/ReactiveX/RxJS/commit/197f449)) * **fromEvent:** will now emit an array when event emits multiple arguments ([51b37fd](https://github.com/ReactiveX/RxJS/commit/51b37fd)) * **fromEventPattern:** removed resultSelector ([6b34f9f](https://github.com/ReactiveX/RxJS/commit/6b34f9f)) * **last:** simplify interface ([3240419](https://github.com/ReactiveX/RxJS/commit/3240419)) * **mergeMap|concatMap|concatMapTo:** simplified the signatures