Build 1.0.2787.0 10/28/2010

Rx.NET

• Added XNA 4.0 Xbox 360 support.
• Added Windows Phone 7 support.
• Fixed xna crash in CurrentThreadScheduler.
• Removed conflict of EnumerableEx.Zip and Enumerable.Zip on Silverlight 4.
• Fixed ForkJoin bug on empty source.
• Added drain operator.
• Added Rx extension methods to BCL via System.Reactive.ClientProfile and System.Reactive.ExtendedProfile assemblies.
• Fixed bug to ensure subjects clear observers once OnCompleted fires.
• Added support for the new C# await keyword (Observable.GetAwaiter).
• Added ToTask and ToTaskLast operators
• Added IAsyncEnumerable interface and all standard query operators for this interface.
• Fixed bug in Observable.Concat, Observable.Catch and Observable.Merge to dispose of source enumerable correctly.
• Added NuPack support (packages will be online soon)

rx.js

• Changed default schedulers to immediate where possible to match rx.net semantics.

Download Rx 1.0.2787.0 for .NET 3.5 SP1
Download Rx 1.0.2787.0 for .NET 4
Download Rx 1.0.2787.0 for Silverlight 3
Download Rx 1.0.2787.0 for Silverlight 4
Download Rx 1.0.2787.0 for JavaScript
Download Rx 1.0.2787.0 for all common flavors
Download Rx 1.0.2787.0 for XNA 4 XBOX 360
Download Rx 1.0.2787.0 for XNA 3.1 Zune
Download Rx 1.0.2787.0 for Windows Phone 7

Build 1.0.2698.0 9/10/2010, HotFix release

Rx.NET

• move testing code to separate assembly (System.Reactive.Testing) to make Rx run on .NET 4 Client profile again
• fix race condition in certain operators for OnError/OnCompleted messages

Download Rx 1.0.2698.0 for .NET 3.5 SP1
Download Rx 1.0.2698.0 for .NET 4
Download Rx 1.0.2698.0 for Silverlight 3
Download Rx 1.0.2698.0 for Silverlight 4
Download Rx 1.0.2698.0 for all common flavors
Download Rx 1.0.2698.0 for XNA 3.1 XBOX
Download Rx 1.0.2698.0 for XNA 3.1 Zune

Build 1.0.2677.0 8/27/2010

Rx.NET

• Fixed bugs in ForkJoin and Catch when using Immediate scheduler.
• Added download containing all common Rx flavors (.NET 3.5, .NET 4, SL3, SL4, JS).
• Added XNA 3.1 XBOX and Zune flavors.
• Added additional Publish overloads.
• Removed public helper from DistinctUntil.
• Changed FromAsyncPattern operators to use Immediate Scheduler on async subject.
• Added helper code for testing Rx using TestScheduler (System.Reactive.Testing namespace).

RxJS

• Added virtual & test scheduler.
• Made currentThread scheduler use priority queue to optimize performance.
• Added dojo deferred support.
• Added bindings for Microsoft Translator & Google Language.
• Made 2 small perf fixes suggested by Douglas Crockford.

Download Rx 1.0.2677.0 for .NET 3.5 SP1
Download Rx 1.0.2677.0 for .NET 4
Download Rx 1.0.2677.0 for Silverlight 3
Download Rx 1.0.2677.0 for Silverlight 4
Download Rx 1.0.2677.0 for all common flavors
Download Rx 1.0.2677.0 for XNA 3.1 XBOX
Download Rx 1.0.2677.0 for XNA 3.1 Zune

Build 1.0.2617.0 07/15/2010

Rx.NET

• Fixed GC issue with ThreadPool Timer.
• Made lock in CompositeDisposable smaller.
• Fixed deadlock in ForkJoin when using Immediate scheduler.
• Changed order of arguments for Generate* operators to match C# for pattern based on feedback from C# Team.
• Changed FromAsyncPattern to catch exceptions thrown in BeginInvoke.
• Made ConnectableObservable.Connect block subsequent calls until first call is complete.
• Added virtual scheduler and test scheduler
• Made MaxBy & MinBy operators return all values that match.
• Renamed EnumerableEx.LongCount to EnumerablEx.LongCountEnumerable to avoid naming conflict with Enumerable.LongCount.

Rx JS

• Added Virtual Earth and Google Maps bindings.
• Fixed crash in For operator with use of Immediate scheduler.
• Changed order of arguments for Generate* operators to match JavaScript for pattern based on feedback from C# Team.

Download Rx 1.0.2617.0 for .NET 3.5 SP1
Download Rx 1.0.2617.0 for .NET 4
Download Rx 1.0.2617.0 for Silverlight 3
Download Rx 1.0.2617.0 for Silverlight 4

Build 1.0.2563.0 06/09/2010

Rx.NET

• Separated SL3 and SL4 installers
• Added EventLoopScheduler (executes on dedicated thread)
• Ported many operators from System.Reactive to System.Interactive
• Removed Amb & Merge from System.Interactive in favor of ToObservable.Amb using System.Reactive
• Added FromEvent overload for non-generic EventHandler
• Fixed performance in N-ary overload of ForkJoin

Rx JS

• Improved MooTools support

Download Rx 1.0.2563.0 for .NET 3.5 SP1
Download Rx 1.0.2563.0 for .NET 4
Download Rx 1.0.2563.0 for Silverlight 3
Download Rx 1.0.2563.0 for Silverlight 4

Build 1.0.2521.0 05/14/2010

Rx .NET

• Added Iterate & ListObservable for enumerable iteration pattern
• Added schedulers to subjects to control synchronization
• Added co and contravariance for IConnectableObservable<T>, IGroupedObservable<T> & ISubject<T1,T2>
• Added Rx equivalent of IQueryable: IQbservable including interfaces & operators.
• Fixed Run operators exception behavior
• Enabled sidebyside install of different versions of Rx (the previous version, 1.0.2441.0 and future versions)
• Install location changed for above change to %PROGRAMFILES%\Microsoft Cloud Programmability\Reactive Extensions\<rx version>\<.net version>

Rx JS

• Added additional bindings for dojo, ExtJs, MooTools, Prototype, JQuery, Yui3
• Added new bindings for Raphael
• Fixed nullness issue in mutableDisposable
• Fixed order issues in subscription, Switch & Amb
• Fixed "concurrency" issue in subjects
• Fixed Do exception behavior
• Added Do observable overload
• · fixed Defer unsubscription bug
• · added While, If, DoWhile, Case, For and Let operators.

Download Rx 1.0.2521.0 for .NET 3.5 SP1
Download Rx 1.0.2521.0 for .NET 4
Download Rx 1.0.2521.0 for Silverlight 4

Build 1.0.2441.0 04/14/2010

Rx .NET

• Added BufferWithTimeOrCount.
• Changed ForkJoin to take the last value from each source.
• Peformed FxCop naming cleanup work.
• Removed FutureDisposable in favor of MutableDisposable.
• Added Sequential operators like While, If, Case etc…
• Added SkipLast & TakeLast.
• Made fixes to CurrentThreadScheduler & NewThreadScheduler.
• Added Scan0.
• Made Sample fire last sample area on Oncompleted & have abort semantics on Error.
• Made Buffers have abort semantics on Error.
• Moved to .NET 4 RTM

Rx JS

• Changed distribution from MSI installer to ZIP file
• Added BufferWithTimeOrCount.
• Added ForkJoin.
• Added SkipLast & TakeLast.
• Removed FutureDisposable in favor of MutableDisposable.
• Breakout support for html api into separate file (rx.html.js).
• Added jQuery support (rx.jquery.js).
• Added dojo support (rx.dojo.js).
• Added MooTools support (rx.mootools.js).
• Added Prototype support (rx.prototypel.js).
• Added ExtJS support (rx.extjs.js).
• Added Yui3 support (rx.yui3.js).
• Added aggregates such as Sum, Count, IsEmpty etc…  (rx.aggregates.js).
• Added joins support (rx.joins.js).
• Changed default schedulers for various API.
• Made List implementation public.
• Made several  to TakeUntil, Scan1,Take, SkipWhile, Repeat, Retry, Catch, StartWith, Subjects, ToAsync, Start.
• Make schedulers have own notion of time (Now()).
• Added Scan0.
• Made Sample fire last sample area on Oncompleted & have abort semantics on Error.
• Made Buffers have abort semantics on Error.
• Fixed Aggregate, Count, Sum & Average behavior on empty observables.
• Added Samples for all different library integration points
• Added readable (debug) version of library integration points.

Download Rx 1.0.2441.0 for .NET 3.5 SP1
Download Rx 1.0.2441.0 for .NET 4
Download Rx 1.0.2441.0 for Silverlight 3 & 4

Build 1.0.2369.0 03/17/2010

• Reactive Extensions for JavaScript, initial release.

Build 1.0.2350.0 03/15/2010

• Added System.Observable to redist.txt.
• Changed Timeout to work on multiple notifications.
• Renamed HoldUntilChanged to DistinctUntilChanged.
• Made Semaphore for Silverlight internal.
• Adding Zip overload for IO<T> and IE<T> zipping.
• Changed last Throttle message to come out at Completion time and fix concurrency bug in Throttle.
• Changed OnErrorResumeNext to always complete.
• Changed Delay error semantics to be abort.
• Added ObserveOn/SubscribeOn on IScheduler.
• Fixed finally behavior.
• Minimized locks in subjects.
• Added MinBy, MaxBy operators as well as Min, Max with comparers.
• Added DistinctBy for Enumerable.

Build 1.0.2317.0 03/05/2010

• Moved to RC for .NET 4 build.
• Moved IObservable & IObserver to seperate assembly: System.Observable.dll.
• Removed IsCritical and its usage on exceptions thrown inside Rx operators.
• Fixed bugs in Enumerable->Observable conversions.
• Fixed threading bugs in EnumerableEx Merge and Amb operator.
• Changed signature of Buffer to expose an IList<T> as opposed to an IEnumerable<T>.
• Fixed Buffer behavior, with regards to flushing last frame and non-overlapping windows (count < skip).
• Renamed Buffer to BufferWithTime and BufferWithCount.
• Introduced BufferWithCount for IEnumerable.
• Renamed Hide to AsObservable, add AsObserver, AsEnumerator.
• Moved Schedulers & Disposables to System.CoreEx.
• Added schedulers to subjects.
• Enforced abort semantics for all exceptions in Rx.
• Added OfType and Cast to Observable, plus additional Do methods + parity in EnumerableEx.
• Reworked GroupBy to be lazy & performant.
• Removed deadlocks throughout Rx.
• Fixed reentrancy bug in Scheduler.
• Added RefCountDisposable.
• Removed LockDisposable.
• Added AsyncLock.
• Changed TimeSpan.MaxValue to not be a sentinel value for Infinite.
• Changed IScheduler argument positioning to be last where possible.
• Moved schedulers to System.Concurrency.
• Renamed Scheduler.Now to Scheduler.CurrentThread.
• Renamed Scheduler.Later to Scheduler.ThreadPool.
• Removed Scheduler.Default.
• Added Scheduler.Immediate and ImmediateScheduler.
• Added Scheduler.TaskPool and TaskPoolScheduler where Tasks are available.
• Added Scheduler.NewThread and NewThreadScheduler.
• Added SynchronizationContextScheduler.
• Added IConnectableObservable.
• Added ConnectableObservable.
• Removed EventSubject.
• Changed Publish/Replay/Prune to return IConnectableObservables.
• Added RefCount operator.
• Made all subjects not disposable.
• Added schedulers to asynchronous operations.
• Made Rx assemblies CLSCompliant.
• Added aggregate operators.
• Removed properties from Rx.
• Removed timedrift from time based operators.
• Changed default schedulers for operators.
• Cleaned up Generate and GenerateWithTime overloads.
• Renamed GroupDisposable to CompositeDisposable.
• Moved reference required overloads of extension methods to defining namespace.
• Many other small bug fixes.
• Removed BooleanSignal.
• Fixed timing bug in ControlScheduler.

Build 1.0.2149.0 12/22/2009

• Include version number in Setup Title & UAC elevation prompt
• Fix assembly file version to state 1.0.2149.0 instead of 0.9.00
• Fix typo in license
• Fix deadlock issue with Scheduler.Now by installing trampoline at Subscribe
• Bring EnumerableEx.Using inline with Observable.Using
• Remove extra firing from Generate timer

Build 1.0.2144.0 12/18/2009

• License changes based on forum feedback
• Add FromAsyncPattern to Silverlight
• Remove Observable.Context and replace with IScheduler mechanism.
• Perf fixes for Last*,First* and Single*. Adding Any, All
• Additional StartWith overloads
• Fix bug in EnumerableEx.Memoize
• Fix bug in EnumerableEx.Retry
• Fix bug in EnumerableEx.Merge
• Add ObserveOn & SubscribeOn for Control and Dispatcher schedulers
• Removed all time based operators which takes an Int instead of a TimeSpan or DateTime
• Generalized the Using operator by adding a type parameter TResource constrained to implement IDisposable
• Renamed BufferWithTime to Buffer since there is no ambiguity between the two now
• Renamed Until to TakeUntil
• Renamed WaitUntil to SkipUntil
• Added various disposables in System.Disposables
• Fixed a bug in Observable.Join
• Added Observable.IsEmpty
• Changed DateTime to DateTimeOffset
• Setup will automatically uninstall previous releases

Build 1.0.2067.0 11/20/2009

• Improved performance of FromEvent.
• TimeInterval & TimeStamped now have a ToString() to help debugability.
• A few general performance improvements regarding Notifications, including Generate and various time based operators
• Fixed semantics of Delay
• Improve performance of Throttle

Known issue: need to uninstall previous build before installing new build (will be fixed in next release).

Build 1.0.2052.0 11/17/2009, First Release

There are 3 versions of Rx: Rx for .NET 3.5 Sp1, Rx for Silverlight 3 and Rx for .NET 4 Beta 2.

All 3 versions can be downloaded from the Devlabs Rx project page.

The installer ships the following dlls:

System.CoreEx, api used by both System.Reactive and System.Interactive:

• Additional Action<,> and Func<,> types (for .NET 3.5 SP1 only, matches types in .NET 4)
• TimeInterval<T> & TimeStamped<T> adds time information to a value.
• IEvent<TEventArgs> wraps existing .NET event values.
• Notification<T> to materialize next/error/completed notifications.
• SynchronizationContexts provides access to common SynchronizationContexts.
• Unit, represents void for use in generics.
• BooleanSignal, a boolean state locking mechanism wrapping Semaphore.
• Semaphore adds the semaphore functionality to Silverlight 3.

System.Reactive, api related to IObservable & IObserver.

• IObservable<T> & IObserver<T>, the base interfaces for Reactive (lives in mscorlib.dll for .NET 4).
• Numerous Observable & Observer sequence operators:

• Standard LINQ operaturs such as: Select, Where, GroupBy, SelectMany
• combining operations such as Zip Repeat, Merge, Amb, Concat and StartWith.
• caching operations such as: Share, Memoize, MemoizeAll and Publish.
• creation operators such as: Return, Throw, Repeat and Generate.
• threading operators such as: Asynchronous, Synchronize, SubscribeOn, ObserveOn.
• exception handling operators such as: Catch, Finally, Retry and OnErrorResumeNext.
• evaluation operators such as: Run & Do.
• stream manipulation operators such as: Scan and Aggregate
• time based operators: Timestamp, Interval, Delay,
• remoting operator: Remotable

• Various Subjects, publish & subscribe (pub/sub) for Reactive with different caching policies.
• System.Joins.*, implements join-calculus on top of Rx.

System.Interactive, backport of Observable sequence operators that apply to IEnumerable as well.

• combining operations such as Zip (for .NET 3.5 SP1 and Silverlight 3), Repeat, Merge, Amb, Concat and StartWith.
• caching operations such as: Share, Memoize, MemoizeAll and Publish.
• creation operators such as: Return, Throw, Repeat and Generate.
• threading operators such as: Asynchronous & Synchronize.
• exception handling operators such as: Catch, Finally, Retry and OnErrorResumeNext.
• evaluation operators such as: Run & Do.
• stream manipulation operators such as: Scan.
• remoting operator: Remotable.

System.Threading, backport of Parallel Extensions for .NET 4 to .NET 3.5 SP1

• Task<T> for executing asynchronous operations.
• Concurrent Collections such as ConcurrentStack, ConcurentQueue ad ConcurrentDictionary.
• PLINQ for writing parallel queries.
• addition Threading operations such as Barrier,SpinLock and SpinWait.

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