Angular2のBeta.1バージョンがリリースされました。

2.0.0-beta.1 catamorphic-involution (2016-01-08)

benchpress: fix flake (9d28147), closes #6161
CHANGELOG: typo (d116861), closes #6075 #6078
code size: revert previous devMode change to restore size targets (c47d85b)
core: IE only supports parentNode (630d931), closes #5994
docs: fix an import in TOOLS_DART.md (3524946), closes #5923
forms: fix SelectControlValueAccessor not to call onChange twice (b44d36c), closes #5969
router: correctly sort route matches with children by specificity (b2bc50d), closes #5848 #6011
router: preserve specificity for redirects (a038bb9), closes #5933
TemplateParser: do not match on attrs that are bindings (9a70f1a), closes #5914

core: improve NoAnnotationError message (197cf09), closes #4866 #5927
core: improve stringify for dart to handle closures (e67ebb7)
core: speed up view creation via code gen for view factories. (7ae23ad), closes #5993
router: support links with just auxiliary routes (2a2f9a9), closes #5930

dart/transform: Avoid unnecessary reads for files with no view (89f32f8), closes #6183

Platform pipes can only contain types and arrays of types,
but no bindings any more.
When using transformers, platform pipes need to be specified explicitly
in the pubspec.yaml via the new config option
platform_pipes.
Compiler.compileInHost now returns a HostViewFactoryRef
Component view is not yet created when component constructor is called.
-> use onInit lifecycle callback to access the view of a component
ViewRef#setLocal has been moved to new type EmbeddedViewRef
internalView is gone, use EmbeddedViewRef.rootNodes to access
the root nodes of an embedded view
renderer.setElementProperty, ..setElementStyle, ..setElementAttribute now
take a native element instead of an ElementRef
Renderer interface now operates on plain native nodes,
instead of RenderElementRefs or RenderViewRefs

いくつかのバグフィックスの他に、エラーメッセージの改善やRouterの機能追加がありますが、メインはView生成機構の破壊的変更ですね。
この件に関しては過去の記事で取り上げています。

RouterはAuxRouteについてもrouterLinkで<a [routerLink]="['/', ['Modal']]">open modal</a>のようにリンクを生成できるようになりました。#5930

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