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RxJs v6.4.0 Release Notes

Release Date: 2019-01-30 // over 6 years ago

  • 🐛 Bug Fixes

    • ajax: Fix case-insensitive headers in HTTP request (#4453) (673bf47)
    • bundle: closure to not rewrite polyfills for minification (#4487) (a1fedb9)
    • bundle: don't export operators twice (#4310) (2399f6e)
    • ✅ combineLatest: improve typings for combineLatest (#4470) (40c3d9f)
    • compat: remove internal from import locations (#4498) (a6c0017), closes #4070
    • endWith: ability to endWith different types (#4183) (#4185) (83533d1)
    • fromEventPattern: improve typings for fromEventPattern (#4496) (037f53d)
    • Observable: Fix Observable.subscribe to add operator TeardownLogic to returned Subscription. (#4434) (f28955f)
    • subscribe: Deprecate null starting parameter signatures for subscribe (#4202) (c85ddf6)
    • ✅ combineLatest: support passing union types (ffda319)
    • from: support passing union types (eb1d596)
    • ✅ withLatestFrom: support passing union types (1e19a24)
    • zip: support passing union types (0d87f52)
    • multicast: support returning union types from projection (e9e9041)
    • exhaustMap: support returning union types from projection (ff1f5dc)
    • 🔀 merge: support union type inference for merge operators (c2ac39c)
    • catchError: support union type returns (8350622)
    • switchMap: support union type returns (32d35fd)
    • defer: support union types passed (5aea50e)
    • race: Update typings to support proper return types (#4465) (0042846)
    • ⏱ VirtualTimeScheduler: rework flush so it won't lose actions (#4433) (d068bc9)
    • WebSocketSubject: fix subject failing to close socket (#4446) (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) (f5e143d), closes #4441
    • range: accept one argument (#4360) (a388578)
    • takeWhile: add an inclusive option to the operator which causes to emit final value (#4115) (6e7f407)

    🐎 Performance Improvements

    • internal: optimize Subscription#add() for the common case (#4489) (bdd201c)
    • internal: use strict equality for isObject() (#4493) (fc84a00)
    • Subscription: use instanceof to avoid megamorphic LoadIC (#4499) (065b4e3)