Angular2 team just released beta.16 which brings new features mostly in router and a number of fixes for forms, compiler etc. Here is the full list:

Bug Fixes

• angular_1_router: Removed arrow function from module template (d094a85), closes #8076
• build: ignore Dart warnings for external code. (4140405)
• codegen: add explicit any to class fields (c8d00dc), closes #8204 #8205
• compiler: only call pure pipes if their input changed. (8db6215)
• compiler: properly implement pure pipes and change pipe syntax (152a117)
• compiler: support string tokens with . inside. (cc86fee)
• compiler: use DI order for change detection order. (67d05eb), closes #8198
• core: various minor compiler fixes (2f70457), closes #8162
• forms: ensure select model updates in firefox and ie (c3daccd), closes #6573 #8148
• forms: improve error message when ngFormModel is missing a form (12837e1), closes #8136 #8143
• forms: number input should report null when blank (e69cb40), closes #6932 #8141
• metadata: emit metadata rooted at ‘angular2’ (9889c21), closes #8144 #8147
• release: Fix the package.json zone.js requirement to 0.6.12 (6103aa0)
• tests: remove payload size check (22c05b0)
• transformers: support query.read (386cc5d), closes #8172
• upgrade: clean up scope when element is destroyed (0fc9ec2), closes #8102

Features

• html_lexer: support special forms used by i18n { exp, plural, =0 {} } (7f29766)
• html_parser: support special forms used by i18n { exp, plural, =0 {} } (7c9717b)
• i18n: add custom placeholder names (bb9fb21), closes #7799 #8057
• i18n: add support for nested expansion forms (c6244d1), closes #7977
• i18n: support plural and gender special forms (88b0a23)
• NgTemplateOutlet: add NgTemplateOutlet directive (f4e6994), closes #7615 #8021
• router: add Router and RouterOutlet (5a897cf), closes #8173
• router: add router metadata (ef67a0c)
• router: add UrlSegment, RouteSegment, and Tree (90a1f7d)
• router: implement recognizer (ef6163e)
• router: implement RouterUrlParser (f698567)
• test: Implement fakeAsync using the FakeAsyncTestZoneSpec from zone.js. (bab81a9), closes #8142
• tests: manage asynchronous tests using zones (8490921), closes #7735

BREAKING CHANGES

• injectAsync is now deprecated. Instead, use the async function to wrap any asynchronous tests. Before:

it('should wait for returned promises', injectAsync([FancyService], (service) => {
  return service.getAsyncValue().then((value) => { expect(value).toEqual('async value'); });
}));
it('should wait for returned promises', injectAsync([], () => {
  return somePromise.then(() => { expect(true).toEqual(true); });
}));

After:

it('should wait for returned promises', async(inject([FancyService], (service) => {
  service.getAsyncValue().then((value) => { expect(value).toEqual('async value'); });
})));
// Note that if there is no injection, we no longer need `inject` OR `injectAsync`.
it('should wait for returned promises', async(() => {
  somePromise.then() => { expect(true).toEqual(true); });
}));

• inject can no longer wrap fakeAsync while fakeAsync can wrap inject. So the order in existing tests with inject and fakeAsync has to be switched as follows: Before:

inject([...], fakeAsync((...) => {...}))

After:

fakeAsync(inject([...], (...) => {...}))

• – pipes now take a variable number of arguments, and not an array that contains all arguments.

Angular team is working hard to give as the RC1 and you can see the progress here.