Il team di sviluppo Angular sta decisamente andando con i piedi di piombo in questo rilascio della quinta versione del popolarissimo client-side framework, poco ma sicuro: la release 5.0.0, inizialmente prevista per il 18 settembre, ha subito un ritardo imprevisto che ha portato gli sviluppatori a posticipare il rilascio di oltre un mese, portandolo al 23 ottobre. Il rapido succedersi di release candidate durante quelle settimane lasciava ben sperare che stavolta la data sarebbe stata rispettata, ma così non è stato: ad oggi 27 ottobre non ci sono ancora notizie sull'effettiva data di pubblicazione della final.

Non ci resta che accontentarci dell'ennesima Release Candidate - la 5.0.0-rc.7, uscita il 26 ottobre 2017 sul repository GitHub ufficiale del progetto - nella speranza di poter presto contare su notizie più confortanti.

Se volete essere tra i primi a conoscere l'effettiva data di uscita, vi consigliamo di tenere d'occhio il changelog ufficiale su GitHub: noi provvederemo ad informarvi ad ogni aggiornamento.

Nel frattempo, ecco i principali cambiamenti che il codice di Angular ha subito dalla 5.0.0-rc.0 alla nuovissima 5.0.0-rc.7:

5.0.0-rc.7 (2017-10-27)

Bug Fixes

• compiler: don’t store invalid state when using
  listLazyRoutes (#19953) (4a23df3)
• compiler: make watch mode work on windows (#19953) (f4d5729), closes #19951
• compiler: recover from structural errors in watch mode (#19953) (d343bf7)
• compiler: translate emit diagnostics with
  noEmitOnError: true . (#19953) (9ce7f0e), closes #19935
• service-worker: don't block initialization on registration (#19936) (47caebf)
• service-worker: fix improper call of Observable.merge (#19962) (14016c7)
• service-worker: listen for messages on the right event source (#19954) (5cfd9c6)

5.0.0-rc.6 (2017-10-25)

Bug Fixes

• compiler: automatically set
  emitDecoratorMetadata when
  "annotationsAs": "static fields” (#19927) (ef08330), closes #19916
• compiler: don’t type check templates with
  skipTemplateCodegen (#19909) (18bce59)
• compiler-cli: only use error collector when needed. (#19912) (9b26455)
• compiler-cli: produce correct paths for windows output (#19915) (6cc042e)

5.0.0-rc.5 (2017-10-24)

Bug Fixes

• compiler-cli: report all diagnostic error messages (#19886) (a82f863)

5.0.0-rc.4 (2017-10-24)

Bug Fixes

• bazel: don't console.error from the compile helper (#19879) (5da96c7)
• compiler: correctly calculate the outDir if it repeats a parts of the
  rootDir . (#19836) (fc0b1d5), closes #19718
• service-worker: include versionedFiles in the manifest hashTable (#19837) (90d1423)

5.0.0-rc.3 (2017-10-18)

Bug Fixes

• animations: always fire inner trigger callbacks even if blocked by parent animations (#19753) (5a9ed2d), closes #19100
• animations: ensure animateChild() works with all inner leave animations (#19006) (#19532) (#19693) (f42d317)
• animations: ensure inner :leave animations do not remove node when skipped (#19532) (#19693) (d035175)
• bazel: fix the output directory for extractor to be genfiles/ instead of bin/ (#19716) (405ccc7)
• common: attempt to JSON.parse errors for JSON responses (#19773) (04ab9f1)
• compiler: generate correct imports for type check blocks (#19582) (60bdcd6)
• compiler: prepare for future Bazel semantics of += (#19717) (836c889)
• compiler-cli: diagnostics file paths relative to cwd, not tsconfig (#19748) (56774df)
• compiler-cli: do not add references to files outside of
  rootDir (#19770) (25cbc98)
• router: RouterLinkActive should update its state right after checking the children (#19449) (6f2939d), closes #18983
• service-worker: add missing annotation for SwPush (#19721) (15a8429)
• service-worker: freshness strategy should clone response for cache (#19764) (396c241)
• service-worker: PushEvent.data has to be decoded (#19764) (3bcf0cf)
• service-worker: use posix path resolution for generation of ngsw.json (#19527) (621f87b)

5.0.0-rc.2 (2017-10-12)

Bug Fixes

• animations: properly support boolean-based transitions and state changes (#19279) (a8920eb), closes #9396 #12337
• compiler: correctly calculate the out path on windows (#19601) (d30ce19), closes #19543
• compiler-cli: produce smaller source maps for templates (#19578) (f83989b)

Performance Improvements

• animations: reduce size of bundle by removing AST classes (#19539) (d5c9c5f)
• compiler: only type check input files when using bazel (#19581) (0b06ea1)
• compiler: skip type check and emit in bazel in some cases. (#19646) (a22121d)
• compiler: speed up loading of summaries for bazel. (#19581) (81167d9)

5.0.0-rc.1 (2017-10-06)

Bug Fixes

• compiler: always emit summaries for jit with ng_module bazel rule. (1058b2a)
• don’t rely on
  goog.DEBUG but on
  COMPILED instead (db74f44)
• compiler: add typings for
  COMPILED . (0038712)
• compiler: also count generated files to determine whether to use single file emit (7c5ecb5)
• compiler: disallow references for select and index evaluation (f3f4c3d)
• compiler: don’t use
  ng:// in AOT source maps, and never point to the original source file (01f7112), closes #19538
• compiler: only don’t emit already emitted files in incremental compilation (caa5195)
• compiler: properly work on windows (696af79), closes #19492
• compiler: set
  emitSkipped to false for incremental compilation (c412913)
• service-worker: several misc fixes for corner cases (f10f8db)
• upgrade: call
  ngOnInit() after
  ngOnChanges() (on components with inputs) (eef7d8a), closes #18913
• upgrade: correctly run change detection when
  propagateDigest is false (617b3d2)
• upgrade: ensure downgraded components are destroyed in the Angular zone (4e6aa9c)

Performance Improvements

• compiler: don’t emit summaries for jit by default (b086891)
• compiler: fix perf issue in loading aot summaries in jit compiler (fbc9537)
• compiler: only emit changed files for incremental compilation (745b59f)

5.0.0-rc.0 (2017-09-28)

Bug Fixes

• animations: properly support the query limit option value (b54368b), closes #19232
• common: use correct pipe name in error messages (#19403) (f9b0863), closes #19373
• compiler: add parens around binary / ternary expressions (3799f43)
• compiler: allow to use flat modules and summaries (ec2be5d)
• compiler: allow to use lowering with
  export * . (e31a76c)
• compiler: also create
  .ngfactory.js files in non obvious cases (#19301) (1a647c3)
• compiler: collect non exported symbols in d.ts files (#19301) (62602b9)
• compiler: correctly derive
  fileExists for generated files (#19301) (f2bad19)
• compiler: correctly map error message locations (#19424) (ff5b050)
• compiler: do not consider a reference with members as a reference (#19454) (b3db3f8)
• compiler: don’t lower property accesses of exported symbols (#19301) (45747ed)
• compiler: don’t type check property access of literal maps (#19301) (04997c8)
• compiler: implement i18n with new compiler (627f048), closes #19429
• compiler: make sure our out path calculation is correct (2f6ae52)
• compiler: make sure to detect paths that start with
  rootDir correctly (bb1665c), closes #19362
• compiler: make watch mode work with
  declaration: false (7c1d3e0), closes #19464
• compiler: remove deprecated
  Compiler.ngGetContentSelectors() (#19347) (f57b7df)
• compiler: skip   when trimming / removing whitespaces (#19310) (13613d4), closes #19304
• compiler: support
  noResolve (#19301) (c76da27)
• compiler: various squashed fixes for the new ngc (a8a9660)
• compiler: work well with
  forwardRef with
  useValue /
  useFactory (1dacae2)
• compiler-cli: do not validate metadata from declaration files (#19324) (4767902), closes #18867
• compiler-cli: don't join errors with comma (#19331) (e889c68)
• compiler-cli: don't rewrite imports when annotating for closure (#19444) (f24ea59)
• create proper externs so that closure does not clobber e.g.
  ng for internal variables (#19423) (b21a1d1)
• compiler-cli: set source file ranges in node emitter (#19348) (27c6638)
• compiler-cli: update ngtools2 EmitFlags (#19375) (e224e3d)
• core: make dynamic & inline code checking behave the same (#19189) (473a577)
• http: introduce named type for HttpParams options (#19360) (8a0e458)
• language-service: do not report errors for
  OpaqueToken (#19427) (c1b029a)
• router: fix activation events toString and docs (#19147) (2c4107c)
• router: resolve and guards should be able to reject with null and undefined (#19418) (a9d32a3), closes #17148
• tsc-wrapped: deduplicate metadata only when the module is the same (#19249) (b6b18c1), closes #19219
• don’t use the global
  ng at all with closure enhanced optimizations (a7798f2)

Features

• animations: support negative query limit values (86ffacf), closes #19259
• compiler: enabled strict checking of parameters to an
  @Injectable (#19412) (dfb8d21)
• compiler: reuse the TypeScript typecheck for template typechecking. (#19152) (996c7c2)
• core: support for bootstrap with custom zone (#17672) (344a5ca)
• platform-server: add an API to transfer state from server (#19134) (cfd9ca0)
• service-worker: introduce the @angular/service-worker package (#19274) (d442b68)

Performance Improvements

• compiler: make the creation of
  ts.Program faster. (#19275) (edd5f5a)
• compiler: only use tsickle if needed (#19275) (8f95b75)
• compiler: speed up watch mode (#19275) (6665d76)

BREAKING CHANGES

• compiler: The method
  ngGetContentSelectors() , deprecated in Angular 4.0, has been removed. Use
  ComponentFactory.ngContentSelectors instead.

Per il momento è tutto: se volete avere maggiori informazioni sulle novità di Angular vi consigliamo di dare un'occhiata anche alla chat ufficiale del progetto su Gitter!

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