Angular 4.3.0 已正式发布，该版本主要是 bug 修复和新功能的添加，详细如下：
Bug 修复：
compiler: avoid emitting self importing factories
compiler-cli: find lazy routes in nested module import arrays
core: add needed closure compiler warning suppression
core: argument destructuring sometimes breaks strictNullChecks
language-service: infer any ngForOf of type any
language-service: rollup tslib into the language service package
router: fix outdated homepage url in NPM package
router: update the version placeholder so that it gets replaced during the build
tsc-wrapped: report errors for invalid ast forms
tsc-wrapped: support as and class expressions
tsc-wrapped: skip collecting metadata for default functions
upgrade: bring the dynamic version closer to the static one
新特性
animations: support disabling animations for sub elements
common/http: new HttpClient API
common/http: on-by-default XSRF support in HttpClient
compiler: adds support for quoted object keys in the parser
compiler: do not evaluate metadata expressions that can use references
compiler: update the schema by extracting from latest chrome
compiler: add support ::ng-deep
compiler-cli: add parameters to ngc main needed by bazel rules
compiler-cli: new compiler api and command-line using TypeScript transformers
core: update zone.js to 0.8.12
router: add router-level events for GuardsCheck and Resolve
upgrade: fix support for directive.link in upgraded components
软件详情：https://github.com/angular/angular/blob/master/CHANGELOG.md
下载地址：https://github.com/angular/angular/archive/4.3.0.zip
来自:开源中国社区
