Angular 6.0.0 beta1 版本已发布，主要是修复 bug 新增了一些特性。同时发布的还有 Angular 5.2.2，这是一个维护版本，修复了一些 bug 。
6.0.0-beta.1 (2018-01-25)
Bug 修复
common: A null value should remove the style on IE
avoid triggering a cli bug
common: don't remove special characters when extracting CLDR data
common: extract plural function from i18n locale data files for TS 2.6
common: fallback to last defined value for named date and time formats
compiler: add support for marker tags in xliff serializers
compiler: Don't strip /*# sourceURL ... */
compiler: fix ICU select messages to use male/female/other
compiler-cli: do not fold errors past calls in the collector
compiler-cli: do not lower expressions in non-modules
router: don't use ParamsInheritanceStrategy in declarations
特性
compiler: implement "enableIvy" compiler option
core: optional generic type for ElementRef
5.2.2 (2018-01-25)
Bug 修复
common: A null value should remove the style on IE
common: don't remove special characters when extracting CLDR data
common: extract plural function from i18n locale data files for TS 2.6
common: fallback to last defined value for named date and time formats
compiler: add support for marker tags in xliff serializers
compiler: Don't strip /*# sourceURL ... */
compiler: fix ICU select messages to use male/female/other
compiler-cli: do not fold errors past calls in the collector
compiler-cli: do not lower expressions in non-modules
router: don't use ParamsInheritanceStrategy in declarations
原文：https://www.oschina.net/news/92767/angular-6-0-0-beta1