2.2.6.1221-preview

• Upgrade to Backport.System.Threading.Lock 3.1.0.
• Make BaseDisposable non thread-safe.
• Add DisposableCollection.
• Add BaseAsyncDisposable.
• Support disposing resources with ViewModel.
• Allocate resources in ViewModel on-demand.
• Add SynchronizationContext.SendAsync() extension methods.

2.2.5.1201-preview

Update version to 2.2.5.1201.

2.1.36.1027

• Fix interruption of smooth scrolling by change of ScrollViewer.Extent.

2.1.35.324

• Prevent crashing in HasFileNames(), TryGetData<T>() and TryGetValue<T>() extension methods of IDataObject.

2.1.34.229

• Clear previous ToolTip.Tip when updating tool tip by TextBlock/SelectableTextBlock to prevent memory leakage.
• Allow cancelling package downloading by Updater when calling WebRequest.GetResponse().
• Fix invalid application base version in BasePackageResolverTests.

2.1.33.129

• Stable release.

2.1.32.117-rc

• Remove internal ID of FixedThreadsTaskScheduler.
• Add FixedThreadsTaskFactory.Name.
• Allow extending ScheduledAction.
• Add DispatcherSynchronizationContext.CancelDelayed() and DispatcherSynchronizationContext.PostDelayed().
• Add DispatcherScheduledAction.

2.1.31.116-rc

• Add FixedThreadsTaskScheduler.Name property.

2.1.30.111-preview

• Fix MethodAccessException when calling-back from user-defined method of Objective-C class if trimming is ON.

2.1.28.110-preview

• Mark AOT compatibility and trimmable state on packages.