Benchpress

Benchpress is a framework for e2e performance tests. See here for an example project.

The sources for this package are in the main Angular repo. Please file issues and pull requests against that repo.

License: MIT

Why?

There are so called "micro benchmarks" that essentially use a stop watch in the browser to measure time (e.g. via performance.now()). This approach is limited to time, and in some cases memory (Chrome with special flags), as metric. It does not allow to measure:

• rendering time: e.g. the time the browser spends to layout or paint elements. This can e.g. used to test the performance impact of stylesheet changes.
• garbage collection: e.g. how long the browser paused script execution, and how much memory was collected. This can be used to stabilize script execution time, as garbage collection times are usually very unpredictable. This data can also be used to measure and improve memory usage of applications, as the garbage collection amount directly affects garbage collection time.
• distinguish script execution time from waiting: e.g. to measure the client side only time that is spent in a complex user interaction, ignoring backend calls.
• measure fps to assert the smoothness of scrolling and animations.

This kind of data is already available in the DevTools of modern browsers. However, there is no standard way to use those tools in an automated way to measure web app performance, especially not across platforms.

Benchpress tries to fill this gap, i.e. allow to access all kinds of performance metrics in an automated way.

How it works

Benchpress uses webdriver to read out the so called "performance log" of browsers. This contains all kinds of interesting data, e.g. when a script started/ended executing, gc started/ended, the browser painted something to the screen, ...

As browsers are different, benchpress has plugins to normalizes these events.

Features

• Provides a loop (so called "Sampler") that executes the benchmark multiple times
• Automatically waits/detects until the browser is "warm"
• Reporters provide a normalized way to store results:
  • console reporter
  • file reporter
  • Google Big Query reporter (coming soon)
• Supports micro benchmarks as well via console.time() / console.timeEnd()
  • console.time() / console.timeEnd() mark the timeline in the DevTools, so it makes sense to use them in micro benchmark to visualize and understand them, with or without benchpress.
  • running micro benchmarks in benchpress leverages the already existing reporters, the sampler and the auto warmup feature of benchpress.

Supported browsers

• Chrome on all platforms
• Mobile Safari (iOS)
• Firefox (work in progress)

How to write a benchmark

A benchmark in benchpress is made by an application under test and a benchmark driver. The application under test is the actual application consisting of html/css/js that should be tests. A benchmark driver is a webdriver test that interacts with the application under test.

A simple benchmark

Let's assume we want to measure the script execution time, as well as the render time that it takes to fill a container element with a complex html string.

The application under test could look like this:

index.html:

<button id="reset" onclick="reset()">Reset</button>
<button id="fill" onclick="fill()">fill innerHTML</button>
<div id="container"></div>
<script>
  var container = document.getElementById('container');
  var complexHtmlString = '...'; // TODO

  function reset() { container.innerHTML = ''; }

  function fill() {
    container.innerHTML = complexHtmlString;
  }
</script>

A benchmark driver could look like this:

// A runner contains the shared configuration
// and can be shared across multiple tests.
var runner = new Runner(...);

driver.get('http://myserver/index.html');

var resetBtn = driver.findElement(By.id('reset'));
var fillBtn = driver.findElement(By.id('fill'));

runner.sample({
  id: 'fillElement',
  // Prepare is optional...
  prepare: () {
    resetBtn.click();
  },
  execute: () {
    fillBtn.click();
    // Note: if fillBtn would use some asynchronous code,
    // we would need to wait here for its end.
  }
});

Measuring in the browser

If the application under test would like to, it can measure on its own. E.g.

index.html:

<button id="measure" onclick="measure()">Measure document.createElement</button>
<script>
  function measure() {
    console.time('createElement*10000');
    for (var i=0; i<10000; i++) {
      document.createElement('div');
    }
    console.timeEnd('createElement*10000');
  }
</script>

When the measure button is clicked, it marks the timeline and creates 10000 elements. It uses the special names createElement*10000 to tell benchpress that the time that was measured is for 10000 calls to createElement and that benchpress should take the average for it.

A test driver for this would look like this:

driver.get('.../index.html');

var measureBtn = driver.findElement(By.id('measure'));
runner.sample({
  id: 'createElement test',
  microMetrics: {
    'createElement': 'time to create an element (ms)'
  },
  execute: () {
    measureBtn.click();
  }
});

When looking into the DevTools Timeline, we see a marker as well:

Custom Metrics Without Using console.time

It's also possible to measure any "user metric" within the browser by setting a numeric value on the window object. For example:

bootstrap(App)
  .then(() => {
    window.timeToBootstrap = Date.now() - performance.timing.navigationStart;
  });

A test driver for this user metric could be written as follows:

describe('home page load', function() {
  it('should log load time for a 2G connection', done => {
    runner.sample({
      execute: () => {
        browser.get(`http://localhost:8080`);
      },
      userMetrics: {
        timeToBootstrap: 'The time in milliseconds to bootstrap'
      },
      providers: [
        {provide: RegressionSlopeValidator.METRIC, useValue: 'timeToBootstrap'}
      ]
    }).then(done);
  });
});

Using this strategy, benchpress will wait until the specified property name, timeToBootstrap in this case, is defined as a number on the window object inside the application under test.

Smoothness Metrics

Benchpress can also measure the "smoothness" of scrolling and animations. In order to do that, the following set of metrics can be collected by benchpress:

• frameTime.mean: mean frame time in ms (target: 16.6ms for 60fps)
• frameTime.worst: worst frame time in ms
• frameTime.best: best frame time in ms
• frameTime.smooth: percentage of frames that hit 60fps

To collect these metrics, you need to execute console.time('frameCapture') and console.timeEnd('frameCapture') either in your benchmark application or in you benchmark driver via webdriver. The metrics mentioned above will only be collected between those two calls and it is recommended to wrap the time/timeEnd calls as closely as possible around the action you want to evaluate to get accurate measurements.

In addition to that, one extra provider needs to be passed to benchpress in tests that want to collect these metrics:

benchpress.sample(providers: [{provide: bp.Options.CAPTURE_FRAMES, useValue: true}], ... )

Requests Metrics

Benchpress can also record the number of requests sent and count the received "encoded" bytes since window.performance.timing.navigationStart:

• receivedData: number of bytes received since the last navigation start
• requestCount: number of requests sent since the last navigation start

To collect these metrics, you need the following corresponding extra providers:

benchpress.sample(providers: [
  {provide: bp.Options.RECEIVED_DATA, useValue: true},
  {provide: bp.Options.REQUEST_COUNT, useValue: true}
], ... )

Best practices

• Use normalized environments

  • metrics that are dependent on the performance of the execution environment must be executed on a normalized machine
  • e.g. a real mobile device whose cpu frequency is set to a fixed value.
    • see our build script
    • this requires root access, e.g. via a userdebug build of Android on a Google Nexus device (see here and here)
  • e.g. a calibrated machine that does not run background jobs, has a fixed cpu frequency, ...

• Use relative comparisons

  • relative comparisons are less likely to change over time and help to interpret the results of benchmarks
  • e.g. compare an example written using a ui framework against a hand coded example and track the ratio

• Assert post-commit for commit ranges

  • running benchmarks can take some time. Running them before every commit is usually too slow.
  • when a regression is detected for a commit range, use bisection to find the problematic commit

• Repeat benchmarks multiple times in a fresh window

  • run the same benchmark multiple times in a fresh window and then take the minimal average value of each benchmark run

• Use force gc with care

  • forcing gc can skew the script execution time and gcTime numbers, but might be needed to get stable gc time / gc amount numbers

• Open a new window for every test

  • browsers (e.g. chrome) might keep JIT statistics over page reloads and optimize pages differently depending on what has been loaded before

Detailed overview

Definitions:

• valid sample: a sample that represents the world that should be measured in a good way.
• complete sample: sample of all measure values collected so far

Components:

• Runner

  • contains a default configuration
  • creates a new injector for every sample call, via which all other components are created

• Sampler

  • gets data from the metrics
  • reports measure values immediately to the reporters
  • loops until the validator is able to extract a valid sample out of the complete sample (see below).
  • reports the valid sample and the complete sample to the reporters

• Metric

  • gets measure values from the browser
  • e.g. reads out performance logs, DOM values, JavaScript values

• Validator

  • extracts a valid sample out of the complete sample of all measure values.
  • e.g. wait until there are 10 samples and take them as valid sample (would include warmup time)
  • e.g. wait until the regression slope for the metric scriptTime through the last 10 measure values is >=0, i.e. the values for the scriptTime metric are no more decreasing

• Reporter

  • reports measure values, the valid sample and the complete sample to backends
  • e.g. a reporter that prints to the console, a reporter that reports values into Google BigQuery, ...

• WebDriverAdapter

  • abstraction over the used web driver client
  • one implementation for every webdriver client E.g. one for selenium-webdriver Node.js module, dart async webdriver, dart sync webdriver, ...

• WebDriverExtension

  • implements additional methods that are standardized in the webdriver protocol using the WebDriverAdapter
  • provides functionality like force gc, read out performance logs in a normalized format
  • one implementation per browser, e.g. one for Chrome, one for mobile Safari, one for Firefox

14.0.0-next.0 (2022-01-26)

language-service

13.2.0 (2022-01-26)

Deprecations

• The CachedResourceLoader and RESOURCE_CACHE_PROVIDER symbols were previously necessary in some cases to test AOT-compiled components with View Engine, but they are no longer needed since Ivy.

• The ComponentFactory and ComponentFactoryResolver classes are deprecated. Since Ivy, there is no need to resolve Component factories. Please use other APIs where you Component classes can be used directly (without resolving their factories).

• Since Ivy, the CompilerOptions.useJit and CompilerOptions.missingTranslation config options are unused, passing them has no effect.

  | Commit | Type | Description | | -- | -- | -- | | 9c11183e74 | docs | deprecate CachedResourceLoader and RESOURCE_CACHE_PROVIDER symbols (#44749) | | 9f12e7fea4 | docs | deprecate ComponentFactory and ComponentFactoryResolver symbols (#44749) | | 4e95a316ce | docs | deprecate unused config options from the CompilerOptions interface (#44749) |

  compiler

  | Commit | Type | Description | | -- | -- | -- | | a4ab6d6b72 | feat | add support for safe calls in templates (#44580) | | abd1bc8039 | fix | correct spans when parsing bindings with comments (#44785) | | ed67a074ce | fix | properly compile DI factories when coverage reporting is enabled (#44732) |

  compiler-cli

  | Commit | Type | Description | | -- | -- | -- | | fa835b5a29 | feat | enable extended diagnostics by default (#44712) | | 73424def13 | feat | provide the animations for DirectiveMeta (#44630) | | fe3e4d6865 | fix | Handle ng-template with structural directive in indexer (#44788) | | 7316e72ec5 | fix | properly index <svg> elements when on a template (#44785) | | 100091ebf0 | fix | remove leftover _extendedTemplateDiagnostics requirements (#44777) | | d2ae96f742 | fix | skip ExtendedTemplateCheckerImpl construction if there were configuration errors (#44778) |

  core

  | Commit | Type | Description | | -- | -- | -- | | 5626b34264 | fix | consistently use namespace short name rather than URI (#44766) | | 94bfcdd9de | fix | error if NgZone.isInAngularZone is called with a noop zone (#44800) |

  forms

  | Commit | Type | Description | | -- | -- | -- | | 72092ebd26 | feat | Allow a FormControl to use initial value as default. (#44434) | | f7aa937cac | fix | Make some minor fixups for forward-compatibility with typed forms. (#44540) |

  language-service

  | Commit | Type | Description | | -- | -- | -- | | af2a1317cb | feat | support completions for animation (#44630) |

  router

  | Commit | Type | Description | | -- | -- | -- | | 5a4ddfd4f5 | feat | Allow symbol keys for Route data and resolve properties (#44519) |

  Special Thanks

  Alex Rickabaugh, Andrew Kushnir, Andrew Scott, Dario Piotrowicz, Derek Cormier, Doug Parker, Douglas Parker, Dylan Hunn, George Kalpakas, Jessica Janiuk, JoostK, Kristiyan Kostadinov, Martin Probst, Oleg Postoev, Stephanie Tuerk, Tim Bowersox, Wiley Marques, Yousaf Nawaz, dario-piotrowicz, iRealNirmal, ivanwonder and shejialuo

13.1.3 (2022-01-19)

animations

13.1.2 (2022-01-12)

animations

13.1.1 (2021-12-15)

animations

13.1.0 (2021-12-09)

Deprecations

• The downgradeModule function calls with NgModule factories are deprecated. Please use NgModule class based downgradeModule calls instead.

  common

• TestRequest from @angular/common/http/testing no longer accepts ErrorEvent when simulating XHR errors. Instead instances of ProgressEvent should be passed, matching with the native browser behavior.
  | Commit | Type | Description | | -- | -- | -- | | dbc46d68b9 | docs | deprecate factory-based signature of the downgradeModule function (#44090) |

  common

  | Commit | Type | Description | | -- | -- | -- | | 489cf42cd0 | fix | incorrect error type for XHR errors in TestRequest (#36082) | | 13362972bb | perf | code size reduction of ngFor directive (#44315) |

  compiler

  | Commit | Type | Description | | -- | -- | -- | | c85bcb0c63 | feat | reference ICU message IDs from their placeholders (#43534) |

  core

  | Commit | Type | Description | | -- | -- | -- | | 5dff077d50 | feat | add migration to remove entryComponents (#44308) | | e65a245a0b | feat | add migration to remove entryComponents (#44322) | | d56e3f43a1 | feat | support TypeScript 4.5 (#44164) |

  http

  | Commit | Type | Description | | -- | -- | -- | | d452b388bd | feat | add has() method to HttpContext class (#43887) |

  localize

  | Commit | Type | Description | | -- | -- | -- | | d3cf222a81 | feat | support "associated message ids" for placeholders (#43534) |

  ngcc

  | Commit | Type | Description | | -- | -- | -- | | 41265919aa | fix | correctly resolve UMD dependencies (#44381) |

  upgrade

  | Commit | Type | Description | | -- | -- | -- | | 34f990986c | feat | support NgModule class as an argument of the downgradeModule function (#43973) |

  Special Thanks

  Alex Rickabaugh, Andrew Kushnir, Andrew Scott, Doug Parker, Dustin M. Eastway, Dylan Hunn, George Kalpakas, HyperLife1119, Jelle Bruisten, Jessica Janiuk, Joey Perrott, JoostK, Kristiyan Kostadinov, Markus Doggweiler, Paul Gschwendtner, Pei Wang, Pete Bacon Darwin and dario-piotrowicz

13.0.3 (2021-12-01)

compiler-cli

13.0.2 (2021-11-17)

This release contains various API docs improvements.

Special Thanks

Andrew Kushnir, Armen Vardanyan, Dylan Hunn, Joey Perrott, Martin von Gagern, Paul Gschwendtner, Pete Bacon Darwin, Ramesh Thiruchelvam, dario-piotrowicz and fusho-takahashi

13.0.1 (2021-11-10)

compiler

13.1.0-next.0 (2021-11-03)

compiler

13.0.0 (2021-11-03)

Blog post "Angular v13 is now available".

Breaking Changes

common

• The behavior of the SpyLocation used by the RouterTestingModule has changed to match the behavior of browsers. It no longer emits a 'popstate' event when Location.go is called. In addition, simulateHashChange now triggers both a hashchange and a popstate event. Tests which use location.go and expect the changes to be picked up by the Router should likely change to simulateHashChange instead. Each test is different in what it attempts to assert so there is no single change that works for all tests. Each test using the SpyLocation to simulate browser URL changes should be evaluated on a case-by-case basis.

  core

• TypeScript versions older than 4.4.2 are no longer supported.

• NodeJS versions older than v12.20.0 are no longer supported due to the Angular packages using the NodeJS package exports feature with subpath patterns.

• The WrappedValue class can no longer be imported from @angular/core, which may result in compile errors or failures at runtime if outdated libraries are used that are still using WrappedValue. The usage of WrappedValue should be removed as no replacement is available.

  forms

• A new type called FormControlStatus has been introduced, which is a union of all possible status strings for form controls. AbstractControl.status has been narrowed from string to FormControlStatus, and statusChanges has been narrowed from Observable<any> to Observable<FormControlStatus>. Most applications should consume the new types seamlessly. Any breakage caused by this change is likely due to one of the following two problems: (1) the app is comparing AbstractControl.status against a string which is not a valid status; or, (2) the app is using statusChanges events as if they were something other than strings.

  router

• The default url serializer would previously drop everything after and including a question mark in query parameters. That is, for a navigation to /path?q=hello?&other=123, the query params would be parsed to just {q: 'hello'}. This is incorrect because the URI spec allows for question mark characers in query data. This change will now correctly parse the params for the above example to be {v: 'hello?', other: '123'}.

• Previously null and undefined inputs for routerLink were equivalent to empty string and there was no way to disable the link's navigation. In addition, the href is changed from a property HostBinding() to an attribute binding (HostBinding('attr.href')). The effect of this change is that DebugElement.properties['href'] will now return the href value returned by the native element which will be the full URL rather than the internal value of the RouterLink href property.

• When storing and retrieving a DetachedRouteHandle, the Router traverses the Route children in order to correctly allow storing a parent route when there are several possible child Route configs that can be stored. This allows a RouteReuseStrategy to store a parent Route and a child, while preserving the ability to change the child route while restoring the parent. Some implementations of RouteReuseStrategy will need to be updated to correctly store and retrieve the DetachedRouteHandle of descendants as well as the stored parent ActivatedRouteSnapshot. Previously, the Router would only store the parent, making it impossible to change descendant paths when a stored parent was retrieved. See #20114.

• The router will no longer replace the browser URL when a new navigation cancels an ongoing navigation. This often causes URL flicker and was only in place to support some AngularJS hybrid applications. Hybrid applications which rely on the navigationId being present on initial navigations that were handled by the Angular router should instead subscribe to NavigationCancel events and perform the location.replaceState themselves to add navigationId to the Router state. In addition, tests which assert urlChanges on the SpyLocation may need to be adjusted to account for the replaceState which is no longer triggered.

• It is no longer possible to use Route.loadChildren using a string value. The following supporting classes were removed from @angular/core:

• NgModuleFactoryLoader

• SystemJsNgModuleFactoryLoader

The @angular/router package no longer exports these symbols:

• SpyNgModuleFactoryLoader
• DeprecatedLoadChildren

The signature of the setupTestingRouter function from @angular/core/testing has been changed to drop its NgModuleFactoryLoader parameter, as an argument for that parameter can no longer be created.

service-worker

• The return type of SwUpdate#activateUpdate and SwUpdate#checkForUpdate changed to Promise<boolean>.

Although unlikely, it is possible that this change will cause TypeScript type-checking to fail in some cases. If necessary, update your types to account for the new return type.

Deprecations

core

• Angular no longer requires component factories to dynamically create components. The factory-based signature of the ViewContainerRef.createComponent function is deprecated in favor of a different signature that allows passing component classes instead.

• The getModuleFactory function is deprecated in favor of the getNgModuleById one. With Ivy it's possible to work with NgModule classes directly, without retrieving corresponding factories, so the getNgModuleById should be used instead.

• Ivy made it possible to avoid the need to resolve Component and NgModule factories. Framework APIs allow to use Component and NgModule Types directly. As a result, the PlatformRef.bootstrapModuleFactory and a factory-based signature of the ApplicationRef.bootstrap method are now obsolete and are now deprecated. The PlatformRef.bootstrapModuleFactory calls can be replaced with PlatformRef.bootstrapModule ones. The ApplicationRef.bootstrap method allows to provide Component Type, so this can be used a replacement for the factory-based calls.

• In ViewEngine, JIT compilation required special providers (like Compiler, CompilerFactory, etc) to be injected in the app and corresponding methods to be invoked. With Ivy, JIT compilation takes place implicitly if the Component, NgModule, etc have not already been AOT compiled. Those special providers were made available in Ivy for backwards-compatibility with ViewEngine to make the transition to Ivy smoother. Since ViewEngine is deprecated and will soon be removed, those symbols are now deprecated as well:

• ModuleWithComponentFactories

• Compiler
• CompilerFactory
• JitCompilerFactory
• NgModuleFactory

Important note: this deprecation doesn't affect JIT mode in Ivy (JIT remains available with Ivy).

• In Ivy, AOT summary files are unused in TestBed. Passing AOT summary files in TestBed has no effect, so the aotSummaries usage in TestBed is deprecated and will be removed in a future version of Angular.

  platform-server

• The renderModuleFactory symbol in @angular/platform-server is no longer necessary as of Angular v13.

The renderModuleFactory calls can be replaced with renderModule.

service-worker

• The SwUpdate#activated observable is deprecated.

The SwUpdate#activated observable only emits values as a direct response to calling SwUpdate#activateUpdate() and was only useful for determining whether the call resulted in an update or not. Now, the return value of SwUpdate#activateUpdate() can be used to determine the outcome of the operation and therefore using SwUpdate#activated does not offer any benefit.

• The SwUpdate#availalbe observable is deprecated.

The new SwUpdate#versionUpdates observable provides the same information and more. Therefore, it is possible to rebuild the same behavior as SwUpdate#availalbe using the events emitted by SwUpdate#versionUpdates and filtering for VersionReadyEvent events. As a result, the SwUpdate#availalbe observable is now redundant.

#

12.2.15 (2021-12-08)

ngcc

12.2.14 (2021-12-01)

compiler

12.2.13 (2021-11-03)

compiler-cli

12.2.12 (2021-10-27)

compiler-cli

12.2.11 (2021-10-20)

ngcc

12.2.10 (2021-10-13)

Special Thanks

Alan Agius, Daniel Díaz, David Shevitz, Doug Parker, George Kalpakas, Joe Martin (Crowdstaffing), Tanguy Nodet, Thomas Turrell-Croft, dario-piotrowicz, hchiam, markostanimirovic and mgechev

12.2.9 (2021-10-06)

core

12.2.8 (2021-09-30)

compiler-cli

12.2.7 (2021-09-22)

common

12.2.6 (2021-09-15)

animations

12.2.5 (2021-09-08)

router

12.2.4 (2021-09-01)

compiler-cli

12.2.3 (2021-08-25)

service-worker

12.2.2 (2021-08-18)

animations

12.2.1 (2021-08-11)

router

12.2.0 (2021-08-04)

core

12.1.5 (2021-08-04)

This release contains various API docs improvements.

12.2.0-rc.0 (2021-07-28)

compiler-cli

12.1.4 (2021-07-28)

compiler-cli

12.2.0-next.3 (2021-07-21)

animations

12.1.3 (2021-07-21)

animations

12.2.0-next.2 (2021-07-14)

bazel

12.1.2 (2021-07-14)

bazel

12.2.0-next.1 (2021-06-30)

compiler

12.1.1 (2021-06-30)

compiler-cli

12.2.0-next.0 (2021-06-24)

This release contains the same set of changes as 12.1.0.

12.1.0 (2021-06-24)

compiler

12.1.0-next.6 (2021-06-16)

compiler

12.0.5 (2021-06-16)

compiler

12.1.0-next.5 (2021-06-09)

common

12.0.4 (2021-06-09)

common

12.1.0-next.4 (2021-06-02)

compiler-cli

12.0.3 (2021-06-02)

compiler-cli

12.0.2 (2021-05-26)

forms

12.1.0-next.3 (2021-05-26)

forms

12.1.0-next.2 (2021-05-19)

common

12.0.1 (2021-05-19)

benchpress

12.0.0 (2021-05-12)

Blog post "Angular v12 is now available".

Bug Fixes

• animations: ensure consistent transition namespace ordering (#19854) (01cc995)
• animations: update supported range of node versions to only include LTS versions (#41822) (e918250)
• animations: cleanup DOM elements when the root view is removed (#41059) (c49b280)
• animations: allow animations on elements in the shadow DOM (#40134) (dad42c8), closes #25672
• animations: cleanup DOM elements when the root view is removed (#41001) (a31da48)
• bazel: update supported range of node versions to only include LTS versions (#41822) (8503246)
• bazel: update build tooling for latest changes in rules_nodejs (#40710) (696f7bc)
• bazel: update integration test to use rules_nodejs@3.1.0 (#40710) (34de89a)
• bazel: update type castings for JSON.parse usage (#40710) (2c90391)
• benchpress: update type castings for JSON.parse usage (#40710) (e721a5d)
• common: add right ContentType for boolean values with HttpClient request body(#38924) (#41885) (922a602)
• common: update supported range of node versions to only include LTS versions (#41822) (f2b6fd8)
• common: viewport scroller not finding elements inside the shadow DOM (#41644) (c0f5ba3), closes #41470
• common: temporarily re-export and deprecate XhrFactory (#41393) (7dfa446)
• common: cleanup location change listeners when the root view is removed (#40867) (38524c4), closes #31546
• common: allow number or boolean as http params (#40663) (91cdc11), closes #23856
• common: avoid mutating context object in NgTemplateOutlet (#40360) (d3705b3), closes #24515
• compiler: preserve @page rules in encapsulated styles (#41915) (3e365ba), closes #26269
• compiler: strip scoped selectors from @font-face rules (#41815) (2a11cda), closes #41751
• compiler: update supported range of node versions to only include LTS versions (#41822) (bae8126)
• compiler: non-literal inline templates incorrectly processed in partial compilation (#41583) (ab257b3)
• compiler: not generating update instructions for ng-template inside alternate namespaces (#41669) (2bcbbda), closes #41308
• compiler: avoid parsing EmptyExpr with a backwards span (#41581) (e1a2930)
• compiler: handle case-sensitive CSS custom properties (#41380) (e112e32), closes #41364
• compiler: include used components during JIT compilation of partial component declaration (#41353) (ff9470b), closes #41104 #41318
• compiler: support multiple :host-context() selectors (#40494) (07b7af3), closes #19199
• compiler: update type castings for JSON.parse usage (#40710) (f728490)
• compiler-cli: use '' for the source map URL of indirect templates (#41973) (7a4d980), closes #40854
• compiler-cli: expose the linker as a Babel plugin (#41918) (8fdac8f)
• compiler-cli: prefer non-aliased exports in reference emitters (#41866) (75bb931), closes #41443 #41277
• compiler-cli: allow linker to process minified booleans (#41747) (1fb6724), closes #41655
• compiler-cli: match string indexed partial declarations (#41747) (f885750), closes #41655
• compiler-cli: update supported range of node versions to only include LTS versions (#41822) (5b463f4)
• compiler-cli: autocomplete literal types in templates. (#41456) (#41645) (8b2b5ef)
• compiler-cli: do not error with prepocessing if component has no inline styles (#41602) (a5fe8b9)
• compiler-cli: ensure the compiler tracks ts.Programs correctly (#41291) (deacc74)
• compiler-cli: prevent eliding default imports in incremental recompilations (#41557) (7f16515), closes #41377
• compiler-cli: resolve rootDirs to absolute (#41359) (3e0fda9), closes #36290
• compiler-cli: add useInlining option to type check config (#41043) (09aefd2), closes #40963
• compiler-cli: readConfiguration existing options should override options in tsconfig (#40694) (b7c4d07)
• compiler-cli: extend angularCompilerOptions in tsconfig from node (#40694) (5eb1954), closes #36715
• compiler-cli: update ngcc integration tests for latest changes in rules_nodejs (#40710) (d7f5755)
• compiler-cli: update type castings for JSON.parse usage (#40710) (b75d7cb)
• core: do not retain dynamically compiled components and modules (#42003) (1449c5c), closes #19997
• core: invoke profiler around ngOnDestroy lifecycle hooks (#41969) (e9ddc57)
• core: AsyncPipe now compatible with RxJS 7 (#41590) (9759bca)
• core: handle multiple i18n attributes with expression bindings (#41882) (73c6c64), closes #41869
• core: update supported range of node versions to only include LTS versions (#41822) (f9c1f08)
• core: detect synthesized constructors that have been downleveled using TS 4.2 (#41305) (274dc15), closes #41298
• core: Switch emitDistinctChangesOnlyDefaultValue to true (#41121) (7096246)
• core: remove duplicated EMPTY_OBJ constant (#41066) (bf158e7)
• core: remove duplicated EMPTY_ARRAY constant (#40991) (e12d9de)
• core: allow EmbeddedViewRef context to be updated (#40360) (a3e1719), closes #24515
• core: make DefaultIterableDiffer keep the order of duplicates (#23941) (a826926), closes #23815
• core: NgZone coaleascing options should trigger onStable correctly (#40540) (22f9e45)
• elements: update supported range of node versions to only include LTS versions (#41822) (4f5d094)
• elements: update type castings for JSON.parse usage (#40710) (efd4149)
• forms: update supported range of node versions to only include LTS versions (#41822) (dc975ba)
• http: complete the request on timeout (#39807) (61a0b6d), closes #26453
• http: emit error on XMLHttpRequest abort event (#40767) (3897265), closes #22324
• language-service: update supported range of node versions to only include LTS versions (#41822) (9b6198c)
• language-service: use script versions for incremental compilations (#41475) (78236bf)
• language-service: Only provide Angular property completions in templates (#41278) (0226a11)
• language-service: Add plugin option to force strictTemplates (#41062) (e9e7c33)
• language-service: use single entry point for Ivy and View Engine (#40967) (e986a97)
• localize: relax error to warning for missing target (#41944) (35ceed2), closes #21690
• localize: update supported range of node versions to only include LTS versions (#41822) (658ed1f)
• localize: update type castings for JSON.parse usage (#40710) (4b469c9)
• ngcc: detect synthesized constructors that have been downleveled using TS 4.2 (#41305) (8d3da56), closes #41298
• platform-browser: prevent memory leak of style nodes if shadow DOM encapsulation is used (#42005) (d555555), closes #36655
• platform-browser: update supported range of node versions to only include LTS versions (#41822) (ea05cfd)
• platform-browser: configure XhrFactory to use BrowserXhr (#41313) (e0028e5), closes #41311
• platform-browser: update type castings for JSON.parse usage (#40710) (7ecfd2d)
• platform-browser-dynamic: update supported range of node versions to only include LTS versions (#41822) (bc45029)
• platform-server: update supported range of node versions to only include LTS versions (#41822) (4b9d4fa)
• router: update supported range of node versions to only include LTS versions (#41822) (0067edd)
• router: Only retrieve stored route when reuse strategy indicates it should reattach (#30263) (a4ff071), closes #23162
• router: recursively merge empty path matches (#41584) (1179dc8), closes #41481
• router: fragment can be null (#37336) (b555160), closes #23894 #34197
• router: update type castings for JSON.parse usage (#40710) (350dada)
• service-worker: update supported range of node versions to only include LTS versions (#41822) (6b823d7)
• service-worker: update type castings for JSON.parse usage (#40710) (4f7ff96)
• upgrade: preserve $interval.flush when ngMocks is being used (#30229) (87dc851)
• upgrade: update supported range of node versions to only include LTS versions (#41822) (10c4523)

Build System

• ng_package no longer generate minified UMDs (#41425) (5a8bc1b)

Features

• animations: update supported range of node versions (#41544) (547363a)
• animations: add support for disabling animations through BrowserAnimationsModule.withConfig (#40731) (29d8a0a)
• bazel: update supported range of node versions (#41544) (d583d92)
• common: update supported range of node versions (#41544) (e0250e5)
• common: add historyGo method to Location service (#38890) (e05a6f3)
• common: support ICU standard "stand alone day of week" with DatePipe (#40766) (c56ecab), closes #26922
• common: implement appendAll() method on HttpParams (#20930) (575a2d1), closes #20798
• compiler: support nullish coalescing in templates (#41437) (ec27bd4), closes #36528
• compiler: update supported range of node versions (#41544) (75cc813)
• compiler: emit @PURE or @pureOrBreakMyCode annotations in the generated code (#41096) (9c21028)
• compiler-cli: mark ability to use partial compilation mode as stable (#41518) (6ba67c6), closes #41496
• compiler-cli: update supported range of node versions (#41544) (b7bd238)
• compiler-cli: support transforming component style resources (#41307) (1de04b1)
• compiler-cli: support producing Closure-specific PURE annotations (#41021) (fbc9df1)
• core: introduce getDirectiveMetadata global debugging utility (#41525) (a07f303)
• core: update supported range of node versions (#41544) (e66a5fb)
• core: support forwardRef in providedIn of Injectable declaration (#41426) (f7c294e), closes #41205
• core: add migration for XhrFactory import (#41313) (95ff5ec)
• core: drop support for TypeScript 4.0 and 4.1 (#41158) (fa04894)
• core: support TypeScript 4.2 (#41158) (59ef409)
• core: manually annotate de-sugarred core tree-shakable providers with @pureOrBreakMyCode (#41096) (03d47d5)
• core: more precise type for APP_INITIALIZER token (#40986) (ca721c2), closes #40729
• core: drop support for zone.js 0.10.x (#40823) (aaf9b31), closes angular/angular-cli#20034
• core: support APP_INITIALIZER work with observable (#33222) (ca17ac5), closes #15088
• elements: update supported range of node versions (#41544) (12fc08b)
• forms: update supported range of node versions (#41544) (a0006a6)
• forms: add emitEvent option for AbstractControl-based class methods (#31031) (4ec045e), closes #29662
• forms: introduce min and max validators (#39063) (8fb83ea), closes #16352
• http: introduce HttpContext request context (#25751) (1644d64)
• http: expose a list of human-readable http status codes (#23548) (6fe3a1d), closes #23543
• language-service: implement signature help (#41581) (c7f9516)
• language-service: update supported range of node versions (#41544) (86621be)
• language-service: add perf tracing to LanguageService (#41319) (90f85da)
• language-service: add command for getting components for a template file (#40655) (5cde4ad)
• language-service: Add diagnostics to suggest turning on strict mode (#40423) (ecae75f)
• language-service: Implement getRenameInfo (#40439) (4e8198d)
• language-service: initial implementation for findRenameLocations (#40140) (9a5ac47)
• language-service: view template typecheck block (#39974) (d482f5c)
• localize: update supported range of node versions (#41544) (590d4dd)
• localize: add scripts to migrate away from legacy message IDs (#41026) (1735430)
• ngcc: support __read helper as used by TypeScript 4.2 (#41201) (66e9970)
• ngcc: support __spreadArray helper as used by TypeScript 4.2 (#41201) (7b1214e) #40394
• platform-browser: update supported range of node versions (#41544) (ef0d1c3)
• platform-browser-dynamic: update supported range of node versions (#41544) (b714f7b)
• platform-server: update supported range of node versions (#41544) (c901b4d)
• platform-server: allow shimming the global env sooner (#40559) (43ecf8a), closes #24551 #39950 #39950
• router: update supported range of node versions (#41544) (c30b171)
• router: add migration for ActivatedRouteSnapshot.fragment (#41092) (190fa07), closes #37336
• router: Add more fine-tuned control in routerLinkActiveOptions (#40303) (6c05c80), closes #13205
• router: Allow for custom router outlet implementations (#40827) (a82fddf)
• service-worker: update supported range of node versions (#41544) (fc597f1)
• upgrade: update supported range of node versions (#41544) (beafa22)

Performance Improvements

• common: remove unused methods from DomAdapter (#41102) (3c66b10)
• compiler: reduce amount of generated code for safe accesses and nullish coalescing (#41563) (9a3b82f), closes #41437 #41491
• compiler-cli: allow incremental compilation in the presence of redirected source files (#41448) (ffea31f)
• compiler-cli: cache results of absoluteFromSourceFile (#41475) (fab1a64)
• core: minor improvements to listener instructions (#41807) (9346d61)
• core: avoid storing LView in ngContext (#41358) (990067a), closes #41047
• core: optimize getDirectives (#41525) (f7e391a)

BREAKING CHANGES

• Minified UMD bundles are no longer included in the distributed NPM packages.
• animations: DOM elements are now correctly removed when the root view is removed. If you are using SSR and use the app's HTML for rendering, you will need to ensure that you save the HTML to a variable before destorying the app. It is also possible that tests could be accidentally relying on the old behavior by trying to find an element that was not removed in a previous test. If this is the case, the failing tests should be updated to ensure they have proper setup code which initializes elements they rely on.
• common: Methods of the PlatformLocation class, namely onPopState and onHashChange, used to return void. Now those methods return functions that can be called to remove event handlers.
• common: The methods of the HttpParams class now accept string | number | boolean instead of string for the value of a parameter. If you extended this class in your application, you'll have to update the signatures of your methods to reflect these changes.
• compiler-cli: Linked libraries no longer generate legacy i18n message ids. Any downstream application that provides translations for these messages, will need to migrate their message ids using the localize-migrate command line tool.
• core: Angular no longer maintains support for node v10
• core: Previously the ng.getDirectives function threw an error in case a given DOM node had no Angular context associated with it (for example if a function was called for a DOM element outside of an Angular app). This behavior was inconsistent with other debugging utilities under ng namespace, which handled this situation without raising an exception. Now calling the ng.getDirectives function for such DOM nodes would result in an empty array returned from that function.
• core: Switching default of emitDistinctChangesOnlyDefaultValue which changes the default behavior and may cause some applications which rely on the incorrect behavior to fail.

emitDistinctChangesOnly flag has also been deprecated and will be removed in a future major release.

The previous implementation would fire changes QueryList.changes.subscribe whenever the QueryList was recomputed. This resulted in an artificially high number of change notifications, as it is possible that recomputing QueryList results in the same list. When the QueryList gets recomputed is an implementation detail, and it should not be the thing that determines how often change event should fire.

Unfortunately, fixing the behavior outright caused too many existing applications to fail. For this reason, Angular considers this fix a breaking fix and has introduced a flag in @ContentChildren and @ViewChildren, that controls the behavior.

export class QueryCompWithStrictChangeEmitParent {
  @ContentChildren('foo', {
    // This option is the new default with this change.
    emitDistinctChangesOnly: true,
  })
  foos!: QueryList<any>;
}

For backward compatibility before v12 emitDistinctChangesOnlyDefaultValue was set to false. This change changes the default to true.

• core: The type of the APP_INITIALIZER token has been changed to more accurately reflect the types of return values that are handled by Angular. Previously, each initializer callback was typed to return any, this is now Promise<unknown> | Observable<unknown> | void. In the unlikely event that your application uses the Injector.get or TestBed.inject API to inject the APP_INITIALIZER token, you may need to update the code to account for the stricter type.

Additionally, TypeScript may report the TS2742 error if the APP_INITIALIZER token is used in an expression of which its inferred type has to be emitted into a .d.ts file. To workaround this, an explicit type annotation is needed, which would typically be Provider or Provider[].

• core: Minimum supported zone.js version is 0.11.4

• forms: The emitEvent option was added to the following FormArray and FormGroup methods:

• FormGroup.addControl

• FormGroup.removeControl
• FormGroup.setControl
• FormArray.push
• FormArray.insert
• FormArray.removeAt
• FormArray.setControl
• FormArray.clear

If your app has custom classes that extend FormArray or FormGroup classes and override the above-mentioned methods, you may need to update your implementation to take the new options into account and make sure that overrides are compatible from a types perspective.

• forms: Previously min and max attributes defined on the <input type="number"> were ignored by Forms module. Now presence of these attributes would trigger min/max validation logic (in case formControl, formControlName or ngModel directives are also present on a given input) and corresponding form control status would reflect that.
• platform-browser: XhrFactory has been moved from @angular/common/http to @angular/common.

Before

import {XhrFactory} from '@angular/common/http';

After

import {XhrFactory} from '@angular/common';

• router: Strict null checks will report on fragment potentially being null. Migration path: add null check.
• router: The type of the RouterLinkActive.routerLinkActiveOptions input was expanded to allow more fine-tuned control. Code that previously read this property may need to be updated to account for the new type.

11.2.14 (2021-05-12)

core

12.1.0-next.1 (2021-05-05)

Bug Fixes

• common: add body as an optional property on the options of HttpClient.delete (#19438) (#41723) (6b8baad)
• compiler-cli: expose the linker as a Babel plugin (#41918) (6eafaa7)
• compiler-cli: prefer non-aliased exports in reference emitters (#41866) (35450c7), closes #41443 #41277
• core: handle multiple i18n attributes with expression bindings (#41882) (9b4b281), closes #41869

Features

• compiler: support directive selectors with attributes containing $ (#41567) (1758d02), closes #41244 #41500 #41500

Performance Improvements

• core: minor improvements to listener instructions (#41807) (6581a1b)

BREAKING CHANGES

• Minified UMD bundles are no longer included in the distributed NPM packages.
• core: Angular no longer maintains support for node v10
• core: Previously the ng.getDirectives function threw an error in case a given DOM node had no Angular context associated with it (for example if a function was called for a DOM element outside of an Angular app). This behavior was inconsistent with other debugging utilities under ng namespace, which handled this situation without raising an exception. Now calling the ng.getDirectives function for such DOM nodes would result in an empty array returned from that function.
• compiler-cli: Linked libraries no longer generate legacy i18n message ids. Any downstream application that provides translations for these messages, will need to migrate their message ids using the localize-migrate command line tool.

11.2.13 (2021-05-05)

Bug Fixes

• animations: ensure consistent transition namespace ordering (#19854) (a58562a)
• common: add right ContentType for boolean values with HttpClient request body(#38924) (#41885) (ae0fa08)
• core: AsyncPipe now compatible with RxJS 7 (#41590) (7a86ebf)
• core: handle multiple i18n attributes with expression bindings (#41912) (345f5c4), closes #41869
• localize: relax error to warning for missing target (#41944) (3150f9f), closes #21690

11.2.12 (2021-04-28)

Bug Fixes

• compiler: strip scoped selectors from [@font-face](https://github.com/font-face) rules (#41815) (de39b49), closes #41751
• upgrade: preserve $interval.flush when ngMocks is being used (#30229) (dd46b87)

11.2.11 (2021-04-21)

Bug Fixes

• common: viewport scroller not finding elements inside the shadow DOM (#41644) (3aa9235), closes #41470
• compiler-cli: autocomplete literal types in templates (296f887)
• router: Only retrieve stored route when reuse strategy indicates it should reattach (#30263) (f4376fc), closes #23162
• router: recursively merge empty path matches (#41584) (8d62813), closes #41481

11.2.10 (2021-04-14)

Bug Fixes

• compiler-cli: prevent eliding default imports in incremental recompilations (#41586) (43050a1), closes #41377
• compiler-cli: show a more specific error for Ivy NgModules (#41534) (09eb125)
• core: error if DebugRenderer2.destroyNode is called twice in a row (#41565) (419c189)
• language-service: bound attributes should not break directive matching (#41597) (3dbcc7f), closes /github.com/angular/angular/blob/cdf1ea1951fb7187b1f6c9bb8a847c859c41e0b8/packages/compiler/src/render3/view/util.ts#L174-L206
• language-service: resolve to the pre-compiled style when compiled css url is provided (#41538) (3d54980), closes angular/vscode-ng-language-service#1263
• language-service: use 'any' instead of failing for inline TCBs (#41513) (f76873e), closes #41395
• router: handle new navigations from a NavigationEnd event (#41262) (#41511) (e34299a), closes #37460
• router: Remove information about attached component when deactivating route (#41381) (646f4a1), closes #41379

Performance Improvements

• compiler-cli: allow incremental compilation in the presence of redirected source files (#41587) (616145e)

11.2.9 (2021-04-07)

Bug Fixes

• bazel: add missing dependency on tslib (#41480) (8d005e5), closes 11.2.8/src/api-extractor/index.js#L20
• compiler-cli: Allow analysis to continue with invalid style url (#41403) (#41489) (07131fa)
• compiler-cli: fix extending angularCompilerOptions from non relative extension less TypeScript configuration files (#41349) (e0165fd), closes #41343

Features

• bazel: allow setting compilationMode in ng_module rule (#41418) (e6da38a)

Performance Improvements

• core: add private hooks around user code executed by the runtime (#41421) (94af9d9)
• language-service: add perf tracing to LanguageService (#41401) (7b0a800)

11.2.8 (2021-04-01)

Bug Fixes

• compiler: handle case-sensitive CSS custom properties (#41380) (f9da272), closes #41364

11.2.7 (2021-03-24)

Bug Fixes

• compiler: correctly process multiple rules containing :host selectors (#41261) (f358d6b), closes #41237
• compiler-cli: add useInlining option to type check config (#41268) (57644e9), closes #40963
• core: remove obsolete check for [class] and [className] presence (#41254) (8a53b54)
• language-service: show suggestion when type inference is suboptimal (#41072) (18cd7a0), closes angular/vscode-ng-language-service#1155 #41042

11.2.6 (2021-03-17)

Bug Fixes

• core: remove duplicated EMPTY_OBJ constant (#41153) (fa97166)
• forms: properly handle the change to the FormGroup shape (#40829) (60ac964), closes #13788
• localize: render correct closing tag placeholder names in XLIFF 2 (#41152) (7dbb550), closes #41142
• localize: trim extracted equiv-text values (#41180) (ed6c09a), closes #41176
• ngcc: do not compile JavaScript sources if typings-only processing is repeated (#41209) (be050b2), closes #41198

Performance Improvements

• forms: avoid direct references to the Validators class (#41189) (#41220) (804b6b6)
• forms: make FormBuilder class tree-shakable (#41126) (ffc93e0)
• forms: make RadioControlRegistry class tree-shakable (#41126) (6414590)
• forms: make built-in ControlValueAccessors more tree-shakable (#41146) (#41197) (5908eda)

11.2.5 (2021-03-10)

Bug Fixes

• bazel: fix incorrect rollup plugin method signature (#41101) (925746b)
• language-service: Only provide dom completions for inline templates (#41078) (a05eb13)

Performance Improvements

• compiler-cli: avoid module resolution in cycle analysis (#40948) (532ae73)
• compiler-cli: detect semantic changes and their effect on an incremental rebuild (#40947) (e35ecea), closes #34867 #40635 #40728
• compiler-cli: ensure module resolution cache is reused for type-check program (#39693) (16f90ca)
• compiler-cli: use bound symbol in import graph in favor of module resolution (#40948) (2035b15)

11.2.4 (2021-03-03)

Bug Fixes

• compiler: allow binding to autocomplete property on select and textarea elements (#40928) (20fb638), closes #39490
• compiler: ensure JIT compilation of ɵɵngDeclarePipe() works (#40929) (55eb7b5)
• compiler: recover from an incomplete open tag at the end of a file (#41054) (c675acd)
• compiler-cli: readConfiguration existing options should override options in tsconfig (#40694) (#41036) (2f3e2df)
• compiler-cli: ensure ngcc can handle wildcard base-paths (#41033) (27d55f6), closes #41014
• compiler-cli: extend angularCompilerOptions in tsconfig from node (#40694) (#41036) (e3ccd56), closes /github.com/microsoft/TypeScript/blob/b346f5764e4d500ebdeff7086e43690ea533a305/src/compiler/commandLineParser.ts#L2603-L2628 #36715
• language-service: Add plugin option to force strictTemplates (#41063) (95f748c)
• language-service: Always attempt HTML AST to template AST conversion for LS (#41068) (6dd5497), closes angular/vscode-ng-language-service#1140
• language-service: can't provide the Input and Output custom binding property name (#41005) (1b1b65e)
• language-service: don't show external template diagnostics in ts files (#41070) (9322e6a), closes #41032
• language-service: only provide template results on reference requests (#41041) (ef87953)
• language-service: provide element completions after open tag < (#41068) (f09e7ab), closes angular/vscode-ng-language-service#1140
• ngcc: do not fail hard when a format-path points to a non-existing or empty file (#40985) (06ff277), closes /github.com/angular/angular/blob/3077c9a1f89c5bd75fb96c16e/packages/compiler-cli/ngcc/src/main.ts#L124 #40965

11.2.3 (2021-02-24)

Performance Improvements

• language-service: Skip Angular analysis when quick info requested outside a template (#40956) (0dd1fac)

11.2.2 (2021-02-22)

Bug Fixes

• animations: error when setting position before starting animation (#28255) (f1c64b3)
• http: emit error on XMLHttpRequest abort event (#40786) (4a32579), closes #22324
• http: ignore question mark when params are parsed (#40610) (3b884ed), closes #28722
• platform-browser: ensure that Hammer loader is called only once (#40911) (f8055f6), closes #25995

Performance Improvements

• core: use ngDevMode to tree-shake warning (#40876) (c8a2e3a)
• language-service: short-circuit LS operations when we know there is no Angular information to provide (#40946) (73a3ff1)

11.2.1 (2021-02-17)

Bug Fixes

• compiler: handle :host-context and :host in the same selector (#40494) (ab8ea87), closes #14349
• compiler: support multiple :host-context() selectors (#40494) (c20e304), closes #19199
• compiler: support multiple selectors in :host-context() (#40494) (fb0ce21)
• compiler-cli: set TS original node on imported namespace identifiers (#40711) (87ac052)
• core: address Trusted Types bug in Chrome 83 (#40815) (b5f2070)
• http: complete the request on timeout (#40771) (a2a5b4a)
• router: fix load interaction of navigation and preload strategies (#40389) (4906bf6), closes #26557 #22842 #26557 #26557 #22842 #26557
• router: fix load interaction of navigation and preload strategies (#40389) (bba1981), closes #26557 #22842 #26557 #26557 #22842 #26557

11.2.0 (2021-02-10)

Bug Fixes

• animations: properly track listeners for a removed element (#40712) (74cb759)
• common: date is not correctly formatted when year is between 0 and 99 (#40448) (bf85f04), closes #40377
• compiler: include parenthesis in expression source spans (#40740) (e99c4e2), closes #40721
• compiler: throw error for duplicate template references (#40538) (7e0ff8c), closes #40536
• compiler-cli: don't crash when we can't resolve a resource (#40660) (95446fb), closes angular/vscode-ng-language-service#1079
• core: properly move embedded views of dynamic component's projectable nodes (#37167) (9ae21ee), closes #37120
• localize: improve invalid syntax in extraction error message (#40724) (24600ff)
• localize: support downleveled inlined helper localize calls (#40754) (415ad8d), closes #40702
• router: stop emitting to event observable on destroy (#40638) (737bc7a), closes #40502

11.2.0-rc.0 (2021-02-03)

This release contains the same set the of changes as 11.2.0-next.1.

11.2.0-next.1 (2021-02-03)

Bug Fixes

• common: parse YYYY-MM strings as UTC dates (#40620) (4c5f18d), closes #33944
• common: parse YYYY strings as UTC dates (#40629) (46d4326), closes #33944 #40620
• compiler: Don't set expression text to synthetic $implicit when empty (#40583) (9d396f8)
• compiler: exclude trailing whitespace from element source spans (#40513) (7a6d1e2), closes #39148
• compiler-cli: preserve user line endings in diagnostic template parse (#40597) (caafac2)
• core: ensure the type T of EventEmitter<T> can be inferred (#40644) (5c54767), closes #40637
• core: remove duplicated EMPTY_ARRAY constant (#40587) (cabe8be)

Performance Improvements

• language-service: update NgCompiler via resource-only path when able (#40585) (07a3d7a)

11.1.2 (2021-02-03)

Bug Fixes

• common: parse YYYY-MM strings as UTC dates (#40620) (cafd4f5), closes #33944
• common: parse YYYY strings as UTC dates (#40629) (b823049), closes #33944 #40620
• compiler: Don't set expression text to synthetic $implicit when empty (#40583) (5dab521)
• compiler: exclude trailing whitespace from element source spans (#40513) (726ec88), closes #39148
• compiler-cli: preserve user line endings in diagnostic template parse (#40597) (00eeebf)
• core: ensure the type T of EventEmitter<T> can be inferred (#40644) (8f9ba8e), closes #40637
• core: remove duplicated EMPTY_ARRAY constant (#40587) (abdf25c)

Performance Improvements

• language-service: update NgCompiler via resource-only path when able (#40680) (0047eb3)

11.1.1 (2021-01-27)

Bug Fixes

• compiler-cli: handle pseudo cycles in inline source-maps (#40435) (566206b), closes #40408
• compiler-cli: use Map rather than object for map of partial linkers (#40563) (33e0f2b)
• core: fix possible XSS attack in development through SSR (#40525) (97ec6e4)
• core: improve injector debug information in ngDevMode (#40476) (4bb38c9)
• forms: allow patchValue() method of FormGroup and FormArray classes to skip null values (#40534) (2fab148), closes #36672 #21021
• forms: properly cleanup in cases when FormControlName has no CVA (#40526) (72fc6aa), closes #39235 #40521
• language-service: implement realpath to resolve symlinks (#40593) (77efc27)
• language-service: recognize incomplete pipe bindings with whitespace (#40346) (d88f18e)
• localize: include meaning in generated ARB files (#40546) (5661298), closes #40506
• router: always stringify matrix parameters (#25095) (a8a27ef), closes #23165
• router: Fix occasional error when creating url tree in IE 11 and Edge (#40488) (69fd942)
• service-worker: handle error with console.error (#40236) (37710b9)

Features

• language-service: Add diagnostics to suggest turning on strict mode (#40568) (defa627)

Performance Improvements

• compiler-cli: introduce fast path for resource-only updates (#40561) (156103c)
• core: simplify bloom bucket computation (#40489) (106734a)

11.1.0 (2021-01-20)

Bug Fixes

• animations: getAnimationStyle causes exceptions in older browsers (#29709) (66d863f)
• animations: replace copy of query selector node-list from "spread" to "for" (#39646) (bfa197f), closes #38551
• common: add HttpParamsOptions to the public api (#35829) (b33b89d), closes #20276
• common: Prefer to use pageXOffset / pageYOffset instance of scrollX / scrollY (#28262) (b1d300d)
• compiler: correct the KeySpan for animation events and properties (#40347) (524415e)
• compiler: incorrectly interpreting some HostBinding names (#40233) (1045465), closes #40220 #40230 #18698
• compiler: recover event parse when animation event name is empty (#39925) (15b15be)
• compiler: avoid duplicate i18n blocks for i18n attrs on elements with structural directives (#40077) (caa4666), closes #39942
• compiler: handle strings inside bindings that contain binding characters (#39826) (dc6d40e), closes #39601
• compiler: disallow i18n of security-sensitive attributes (#39554) (c8a99ef)
• compiler: ensure that placeholders have the correct sourceSpan (#39717) (0462a61), closes #39671
• compiler: only promote Trusted Types to constants when necessary (#39554) (4916870)
• compiler: report better error on interpolation in an expression (#30300) (94e790d)
• compiler-cli: do not duplicate repeated source-files in rendered source-maps (#40237) (3158858)
• compiler-cli: remove classes in .d.ts files from provider checks (#40118) (973bb40)
• animations: implement getPosition in browser animation builder (#39983) (ca08625)
• compiler-cli: correct incremental behavior even with broken imports (#39923) (c7c5b2f)
• compiler-cli: remove the concept of an errored trait (#39923) (6d42954)
• compiler-cli: track poisoned scopes with a flag (#39923) (0823622)
• compiler-cli: report error when a reference target is missing instead of crashing (#39805) (453b32f), closes #38618 #39744
• core: fix possible XSS attack in development through SSR. (#40136) (47d9b6d)
• core: set ngDevMode to false when calling enableProdMode() (#40124) (70b4816)
• core: Allow passing AbstractType to the inject function (#37958) (a1b6ad0)
• core: Ensure OnPush ancestors are marked dirty when events occur (#39833) (68d4a74), closes #39832
• core: meta addTag() adds incorrect attribute for httpEquiv (#32531) (ff0a90e)
• core: migration error if program contains files outside of the project (#39790) (1a26f6d), closes #39778
• core: not invoking object's toString when rendering to the DOM (#39843) (11cd37f), closes #38839
• core: remove duplicated noop function (#39761) (066126a)
• core: support Attribute DI decorator in deps section of a token (#37085) (f5cbf0b), closes #36479
• core: remove application from the testability registry when the root view is removed (#39876) (df27027), closes #22106
• core: Support extending differs from root NgModule (#39981) (5fc4508), closes #25015 #11309 #18554
• core: unsubscribe from the onError when the root view is removed (#39940) (5a3a154)
• core: QueryList should not fire changes if the underlying list did not change. (#40091) (76f3633)
• core: fix fakeAsync() error messages (#40442) (ad2b50b)
• forms: error if control is removed as a result of another one being reset (#40462) (2c5ad5c), closes #33401
• forms: clean up connection between FormControl/FormGroup and corresponding directive instances (#39235) (a384961), closes #20007 #37431 #39590
• language-service: fix go to definition for template variables and references (#40455) (#40491) (3e134e4)
• language-service: Paths on Windows should be normalized (#40492) (b8e47e2), closes /github.com/angular/vscode-ng-language-service/blob/9fca9c66510974c26d5c21b31adb9fa39ac0a38a/server/src/session.ts#L594
• language-service: report non-template diagnostics (#40331) (4db89f4)
• language-service: diagnostic and definition should work for absolute url (#40406) (625d2c2)
• language-service: reinstate overridden compiler option after change (#40364) (811cacc)
• language-service: Support 'find references' for two-way bindings (#40185) (ebb7ac5)
• language-service: Support 'go to definition' for two-way bindings (#40185) (a9d8c22)
• language-service: Support completions of two-way bindings (#40185) (7d74853)
• language-service: Do not include $event parameter in reference results (#40158) (d466db8), closes #40157
• language-service: include compilerOptions.rootDir in rootDirs (#40243) (a62416c), closes angular/vscode-ng-language-service#1039
• language-service: LSParseConfigHost.resolve should not concat abs paths (#40242) (0264f76)
• language-service: return all typecheck files via getExternalFiles (#40162) (183fb7e)
• language-service: shorthand syntax with variables (#40239) (12cb39c)
• language-service: force compileNonExportedClasses: false in LS (#40092) (028e4f7)
• language-service: Prevent matching nodes after finding a keySpan (#40047) (1bf1b68)
• language-service: do not return external template that does not exist (#39898) (2b84882)
• language-service: do not treat file URIs as general URLs (#39917) (3b70098)
• localize: ensure extracted messages are serialized in a consistent order (#40192) (212245f), closes #39262
• ngcc: copy (and update) source-maps for unmodified source files (#40429) (e2e3862), closes #40358
• service-worker: handle error with ErrorHandler (#39990) (74e42cf), closes #39913
• router: correctly handle string command in outlets (#39728) (c33a823), closes #18928
• router: lazy loaded modules without RouterModule.forChild() won't cause an infinite loop (#36605) (6675b6f), closes #29164
• router: remove duplicated getOutlet function (#39764) (5fa7673)
• service-worker: correctly handle failed cache-busted request (#39786) (6046419), closes #39775 #39775
• upgrade: avoid memory leak when removing downgraded components (#39965) (6dc43a4), closes #26209 #39911 #39921
• upgrade: fix HMR for hybrid applications (#40045) (b4b21bd), closes #39935

Performance Improvements

• animations: use ngDevMode to tree-shake warning (#39964) (9ebe423)
• common: use ngDevMode to tree-shake warnings (#39964) (f022efa)
• core: use ngDevMode to tree-shake checkNoChanges (#39964) (e1fe9ec)
• core: use ngDevMode to tree-shake warnings (#39959) (8b0cccc)
• core: make DI decorators tree-shakable when used for useFactory deps config (#40145) (0664d75), closes #40143
• forms: use ngDevMode to tree-shake _ngModelWarning (#39964) (7954c8d)
• ngcc: do not copy files that have been processed (#40429) (798aae4)

Features

• common: allow any Subscribable in async pipe (#39627) (c7f4abf)
• compiler: recover expression parsing in more malformed pipe cases (#39437) (e336572)
• compiler: support recovery of malformed property writes (#39103) (e44e10b)
• compiler: add schema for Trusted Types sinks (#39554) (358c50e)
• compiler: support error reporting in I18nMetaVisitor (#39554) (bb70a9b)
• compiler: support tagged template literals in code generator (#39122) (ef89274)
• compiler: allow trailing comma in array literal (#22277) (8d613c1), closes #20773
• compiler-cli: implement partial directive declaration linking (#39518) (87e9cd6)
• compiler-cli: partial compilation of directives (#39518) (8c0a92b)
• compiler-cli: add support for using TypeScript 4.1 (#39571) (a7e7c21)
• compiler-cli: support for partial compilation of components (#39707) (e75244e)
• compiler-cli: expose function to allow short-circuiting of linking (#40137) (7dcf286)
• compiler-cli: JIT compilation of component declarations (#40127) (d4327d5)
• compiler-cli: JIT compilation of directive declarations (#40101) (9186f1f)
• core: add shouldCoalesceRunChangeDetection option to coalesce change detections in the same event loop. (#39422) (5e92d64), closes #39348 #39348
• core: adds get method to QueryList (#36907) (a965589), closes #29467
• core: Add schematic to fix invalid Route configs (#40067) (805b4f9)
• language-service: log Angular compiler options (#40364) (6a9e328)
• language-service: autocomplete pipe binding expressions (#40032) (cbb6eae)
• language-service: autocompletion of element tags (#40032) (e42250f)
• language-service: autocompletion within expression contexts (#39727) (93a8326)
• language-service: complete attributes on elements (#40032) (66378ed)
• language-service: completions for structural directives (#40032) (2a74431)
• language-service: enable get references for directive and component from template (#40054) (973f797)
• language-service: Add "find references" capability to Ivy integrated LS (#39768) (06a782a)
• language-service: implement autocompletion for global properties (Ivy) (#39250) (28a0bcb)
• language-service: Implement go to definition for style and template urls (#39202) (563fb6c)
• localize: support Application Resource Bundle (ARB) translation file format (#36795) (5684ac5)
• platform-browser: add doubletap HammerJS support (#26362) (b5c0f9d), closes #23954
• router: add relativeTo as an input to routerLink (#39720) (112324a), closes #13523

11.0.9 (2021-01-13)

Bug Fixes

• compiler: incorrectly inferring content type of SVG-specific title tag (#40259) (642c45b), closes #31503
• compiler-cli: prevent stack overflow in decorator transform for large number of files (#40374) (ff36485), closes #40276
• ngcc: compute the correct package paths for target entry-points (#40376) (584b78a), closes #40352 #40357
• router: better ngZone checking for warning (#25839) (adf42da), closes #25837
• service-worker: allow checking for updates when constantly polling the server (#40234) (a7befd5), closes #40207
• service-worker: ensure SW stays alive while notifying clients about unrecoverable state (#40234) (c01b5ea)

11.0.8 (2021-01-11)

Bug Fixes

• core: memory leak if view container host view is destroyed while view ref is not (#40219) (f691e85), closes #38648
• forms: handle standalone <form> tag correctly in NgControlStatusGroup directive (#40344) (b3f322f), closes #38391
• router: Remove usage of Object.values to avoid the need for a polyfill (#40370) (c44dd84)

11.0.7 (2021-01-07)

Bug Fixes

• router: correctly deactivate children with componentless parent (#40196) (7060ae2), closes /github.com/angular/angular/blob/362f45c4bf1bb49a90b014d2053f4c4474d132c0/packages/router/src/operators/activate_routes.ts#L151-L158 #20694
• router: Remove usage of Object.entries to avoid the need for a polyfill (#40340) (6429be1)

11.0.6 (2021-01-06)

Bug Fixes

• compiler: don't report parse error for interpolation inside string in property binding (#40267) (7977509), closes #39826 #39601
• compiler: incorrectly encapsulating selectors with escape sequences (#40264) (1bfbfaa), closes #31844
• compiler-cli: handle \r\n line-endings correctly in source-mapping (#40187) (b865b32), closes #40169 #39654
• compiler-cli: ngcc - remove outdated link (#40285) (0b00d65), closes #39837
• core: Call onDestroy in production mode as well (#40120) (632fe60), closes #39876 #40105
• core: ensure sanitizer works if DOMParser return null body (#40107) (add7cbb), closes #39834
• core: error if detectChanges is called at the wrong time under specific circumstances (#40206) (ef13e83), closes #38611
• core: take @Host into account while processing useFactory arguments (#40122) (#40313) (45838c0)
• router: apply redirects should match named outlets with empty path parents (#40029) (#40315) (f542e4e), closes #38379 #38379 #39952 #10726 #30410
• router: Ensure named outlets with empty path parents are recognized (#40029) (#40315) (c722c43)
• router: Router should focus element after scrolling (#40241) (a1dcfc5), closes #30067

11.0.5 (2020-12-16)

Bug Fixes

• compiler: handle strings inside bindings that contain binding characters (#39826) (f5aab2b), closes #39601
• core: fix possible XSS attack in development through SSR. (#40136) (0aa220b)
• core: set ngDevMode to false when calling enableProdMode() (#40124) (922f492)
• upgrade: fix HMR for hybrid applications (#40045) (c4c7509), closes #39935

11.0.4 (2020-12-09)

Bug Fixes

• animations: implement getPosition in browser animation builder (#39983) (5a765f0)
• compiler-cli: correct incremental behavior even with broken imports (#39967) (adeeb84)
• compiler-cli: remove the concept of an errored trait (#39967) (0aa35ec)
• compiler-cli: track poisoned scopes with a flag (#39967) (178cc51)
• core: remove application from the testability registry when the root view is removed (#39876) (3680ad1), closes #22106
• core: unsubscribe from the onError when the root view is removed (#39940) (35309bb)
• language-service: do not return external template that does not exist (#39898) (6b6fcd7)
• language-service: do not treat file URIs as general URLs (#39917) (829988b)
• service-worker: handle error with ErrorHandler (#39990) (588dbd3), closes #39913
• upgrade: avoid memory leak when removing downgraded components (#39965) (97310d3), closes #26209 #39911 #39921

Performance Improvements

• animations: use ngDevMode to tree-shake warning (#39964) (72aad32)
• common: use ngDevMode to tree-shake warnings (#39964) (bf3de9b)
• core: use ngDevMode to tree-shake checkNoChanges (#39964) (2fbb684)
• core: use ngDevMode to tree-shake warnings (#39959) (1e3534f)
• forms: use ngDevMode to tree-shake _ngModelWarning (#39964) (735556d)

11.0.3 (2020-12-02)

Bug Fixes

• animations: getAnimationStyle causes exceptions in older browsers (#29709) (cb1d77a)
• animations: replace copy of query selector node-list from "spread" to "for" (#39646) (e95cd2a), closes #38551
• common: Prefer to use pageXOffset / pageYOffset instance of scrollX / scrollY (#28262) (5692607)
• compiler: ensure that placeholders have the correct sourceSpan (#39717) (8ec7156), closes #39671
• compiler: report better error on interpolation in an expression (#30300) (6dc74fd)
• compiler-cli: report error when a reference target is missing instead of crashing (#39805) (8634611), closes #38618 #39744
• core: Ensure OnPush ancestors are marked dirty when events occur (#39833) (01c1bfd), closes #39832
• core: meta addTag() adds incorrect attribute for httpEquiv (#32531) (3114b0a)
• core: migration error if program contains files outside of the project (#39790) (7dcc212), closes #39778
• core: not invoking object's toString when rendering to the DOM (#39843) (75e22ab), closes #38839
• core: remove duplicated noop function (#39761) (26a1337)
• core: support Attribute DI decorator in deps section of a token (#37085) (aaa3111), closes #36479
• router: correctly handle string command in outlets (#39728) (50c19a2), closes #18928
• router: remove duplicated getOutlet function (#39764) (df231ad)
• service-worker: correctly handle failed cache-busted request (#39786) (7bf73d7), closes #39775 #39775

DEPRECATIONS

• forms: Mark the {[key: string]: any} type for the options property of the FormBuilder.group method as deprecated. Using AbstractControlOptions gives the same functionality and is type-safe.

11.0.2 (2020-11-19)

Bug Fixes

• router: migration incorrectly replacing deprecated key (#39763) (0237845), closes #38762 #39755

11.0.1 (2020-11-18)

Bug Fixes

• compiler-cli: incorrectly type checking calls to implicit template variables (#39686) (e05cfdd), closes #39634 * compiler-cli: setComponentScope should only list used components/pipes (#39662) (8d317df) * core: handle !important in style property value (#39603) (978f081), closes #35323 * core: not inserting ViewContainerRef nodes when inside root of a component (#39599) (20db90a), closes #39556 * core: remove deprecated wtfZoneSpec from NgZone (#37864) (e02bea8), closes #33949
• forms: more precise control cleanup (#39623) (050cea9)
• http: queue jsonp <script> tag onLoad event handler in microtask (#39512) (10e4ac0), closes #39496

Performance Improvements

• compiler: optimize computation of i18n message ids (#39694) (1891455)
• compiler: use raw bytes to represent utf-8 encoded strings (#39694) (882ff8f)
• compiler-cli: reduce filesystem hits during resource resolution (#39604) (a7adcbd)

11.0.0 (2020-11-11)

Blog post "Version 11 of Angular Now Available".

Bug Fixes

• bazel: only providing stamping information if the --stamp flag is used (#39392) (84e09a0)
• common: do not round up fractions of a millisecond in DatePipe (#38009) (26f2820), closes #37989
• common: mark locale data arrays as readonly (#30397) (6acea54), closes #27003
• common: add params and reportProgress options to HttpClient.put() overload (#37873) (dd8d8c8), closes #23600
• common: correct and simplify typing of KeyValuePipe (#37447) (4dfe0fa)
• common: correct and simplify typing of AsyncPipe (#37447) (5f815c0)
• common: correct and simplify typing of I18nPluralPipe (#37447) (3b919ef)
• common: correct typing and implementation of SlicePipe (#37447) (4744c22)
• common: let case conversion pipes accept type unions with null (#37447) (c7d5555), closes #36259
• common: add boolean to valid json for testing (#37893) (3c474ec), closes #20690
• common: update locales using new CLDR data (#39343) (3738233)
• common: change the week-numbering year format from r -> Y (#39495) (feda78e)
• compiler: source span for microsyntax text att should be key span (#38766) (8f349b2)
• compiler: promote constants in templates to Trusted Types (#39211) (6e18d2d)
• compiler: do not throw away render3 AST on errors (#39413) (d76beda)
• compiler: treat i18n attributes with no bindings as static attributes (#39408) (bf1caa7), closes #38231
• compiler: preserve this.$event and this.$any accesses in expressions (#39323) (a8e0db7), closes #30278
• compiler: ensure that i18n message-parts have the correct source-span (#39486) (63f9e16)
• compiler: skipping leading whitespace should not break placeholder source-spans (#39486) (b8e9b3d), closes #39195
• compiler-cli: compute source-mappings for localized strings (#38645) (7e0b3fd)
• compiler-cli: generate let statements in ES2015+ mode (#38775) (123bff7)
• compiler-cli: perform DOM schema checks even in basic mode in g3 (#38943) (40975e0)
• compiler-cli: type checking of expressions within ICUs (#39072) (0a16e60), closes #39064
• compiler-cli: generating invalid setClassMetadata call in ES5 for class with custom decorator (#39527) (b0bbc1f), closes #39509
• compiler-cli: report missing pipes when fullTemplateTypeCheck is disabled (#39320) (67ea7b6), closes #38195
• compiler-cli: avoid duplicate diagnostics about unknown pipes (#39517) (c68ca49)
• compiler-cli: do not drop non-Angular decorators when downleveling (#39577) (f51cf29), closes #39574
• core: remove CollectionChangeRecord symbol (#38668) (fdea180)
• core: ensure TestBed is not instantiated before override provider (#38717) (c8f056b)
• core: use single quotes for relative link resolution migration to align with style guide (#39070) (8894706)
• core: migrate relative link resolution with single quotes (#39102) (049b453)
• core: use Trusted Types policy in inert DOM builder (#39208) (7d49299)
• core: use Trusted Types policy in createNamedArrayType() (#39209) (f6d5cdf)
• core: guard reading of global ngDevMode for undefined. (#36055) (f541e5f)
• core: do not error when ngDevMode is undeclared (#39415) (cc32932)
• core: store ICU state in LView rather than in TView (#39233) (0992b67), closes #37021 #38144 #38073
• core: markDirty() should only mark flags when really scheduling tick. (#39316) (3b6497b), closes #39296
• core: access injected parent values using SkipSelf (#39464) (7cb9e19)
• elements: update the view of an OnPush component when inputs change (#39452) (dd28855), closes #38948
• forms: ensure to emit statusChanges on subsequent value update/validations (#38354) (d9fea85), closes #20424 #14542
• forms: type NG_VALUE_ACCESSOR injection token as array (#29723) (2b1b718), closes #29351
• forms: improve types of directive constructor arguments (#38944) (246de9a)
• forms: include null in .parent of abstract control (#32671) (f4f1bcc), closes #16999
• forms: remove validators while cleaning up a control (#39234) (43b4940)
• language-service: hybrid visitor returns parent node of BoundAttribute (#38995) (323be39)
• language-service: [Ivy] hybrid visitor should not locate let keyword (#39061) (70e13dc)
• language-service: [Ivy] create compiler only when program changes (#39231) (8f1317f)
• localize: render placeholder types in extracted XLIFF files (#39398) (32163ef), closes #38791
• localize: serialize all the message locations to XLIFF (#39411) (f5710c6), closes #39330
• ngcc: ensure that "inline exports" can be interpreted correctly (#39267) (822b838)
• ngcc: capture UMD/CommonJS inner class implementation node correctly (#39346) (fc2e3cc)
• platform-server: resolve absolute URL from baseUrl (#39334) (b4e8399)
• platform-webworker: remove @angular/platform-webworker and @angular/platform-webworker-dynamic (#38846) (93c3d8f)
• router: fix arguments order for call to shouldReuseRoute (#26949) (3817e5f), closes #16192
• router: support lazy loading for empty path named outlets (#38379) (926ffcd), closes #12842
• router: set relativeLinkResolution to corrected by default (#25609) (837889f)
• router: properly assign ExtraOptions to Router in RouterTestingModule (#39096) (d8c0534), closes #23347
• router: allow undefined inputs on routerLink (#39151) (b0b4953)
• router: create schematic for preserveQueryParams (#38762) (93ee05d)
• router: remove preserveQueryParams symbol (#38762) (783a5bd)
• router: fix incorrect type signature for createUrlTree (#39347) (161b278)
• router: ensure all outlets are used when commands have a prefix (#39456) (b2f3952)
• service-worker: fix condition to check for a cache-busted request (#36847) (5be4edf)

Features

• common: add ISO week-numbering year formats support to formatDate (#38828) (984ed39)
• common: stricter types for DatePipe (#37447) (daf8b7f)
• common: stricter types for number pipes (#37447) (7b2aac9)
• compiler: parse and recover on incomplete opening HTML tags (#38681) (6ae3b68), closes #38596
• compiler: add keySpan to Variable node (#38965) (239968d)
• compiler-cli: TemplateTypeChecker operation to get Symbol from a template node (#38618) (c4556db)
• compiler-cli: add ability to get Symbol of Templates and Elements in component template (#38618) (cf2e8b9)
• compiler-cli: add ability to get Symbol of AST expression in component template (#38618) (f56ece4)
• compiler-cli: add ability to get symbol of reference or variable (#38618) (19598b4)
• compiler-cli: define interfaces to be used for TemplateTypeChecker (#38618) (9e77bd3)
• compiler-cli: support getting resource dependencies for a source file (#38048) (5dbf357)
• core: add automated migration to replace async with waitForAsync (#39212) (5ce71e0)
• core: add automated migration to replace ViewEncapsulation.Native (#38882) (0e733f3)
• core: add initialNavigation schematic (#36926) (0ec7043)
• core: add Trusted Types workaround for Function constructor (#39209) (5913e5c)
• core: create internal Trusted Types module (#39207) (0875fd2)
• core: depend on type definitions for Trusted Types (#39207) (c4266fb)
• core: remove ViewEncapsulation.Native (#38882) (4a1c12c)
• forms: add migration for AbstractControl.parent accesses (#39009) (aeec223), closes #32671
• language-service: add getDefinitionAndBoundSpan (go to definition) (#39101) (3975dd9)
• language-service: add quick info for inline templates in ivy (#39060) (904adb7)
• language-service: [Ivy] getSemanticDiagnostics for external templates (#39065) (63624a2)
• language-service: add getTypeDefinitionAtPosition (go to type definition) (#39145) (a84976f)
• language-service: add module name to directive quick info (#39121) (4604fe9)
• router: add migration to update calls to navigateByUrl and createUrlTree with invalid parameters (#38825) (7849fdd)
• router: add relativeLinkResolution migration to update default value (#38698) (15ea811)
• router: add new initialNavigation options to replace legacy (#37480) (c4becca)
• service-worker: add UnrecoverableStateError (#36847) (036a2fa), closes #36539
• service-worker: add the option to prefer network for navigation requests (#38565) (a206852), closes #38194

Performance Improvements

• compiler-cli: only emit directive/pipe references that are used (#38539) (077f516)
• compiler-cli: optimize computation of type-check scope information (#38539) (297c060)
• compiler-cli: only generate template context declaration when used (#39321) (1ac0500)
• core: do not recurse into modules that have already been registered (#39514) (5c13c67), closes #39487
• router: use ngDevMode to tree-shake error messages in router (#38674) (db21c4f)

BREAKING CHANGES

• common:
  • 6acea54: The locale data API has been marked as returning readonly arrays, rather than mutable arrays, since these arrays are shared across calls to the API. If you were mutating them (e.g. calling sort(), push(), splice(), etc.) then your code will no longer compile. If you need to mutate the array, you should now make a copy (e.g. by calling slice()) and mutate the copy.
  • 26f2820: When passing a date-time formatted string to the DatePipe in a format that contains fractions of a millisecond, the milliseconds will now always be rounded down rather than to the nearest millisecond. Most applications will not be affected by this change. If this is not the desired behaviour then consider pre-processing the string to round the millisecond part before passing it to the DatePipe.
  • 4744c22: The slice pipe now returns null for the undefined input value, which is consistent with the behavior of most pipes. If you rely on undefined being the result in that case, you now need to check for it explicitly.
  • 4dfe0fa: The typing of the keyvalue pipe has been fixed to report that for input objects that have number keys, the result will contain the string representation of the keys. This was already the case and the types have simply been updated to reflect this. Please update the consumers of the pipe output if they were relying on the incorrect types. Note that this does not affect use cases where the input values are Maps, so if you need to preserve numbers, this is an effective way.
  • 7b2aac9: The signatures of the number pipes now explicitly state which types are accepted. This should only cause issues in corner cases, as any other values would result in runtime exceptions.
  • daf8b7f: The signature of the date pipe now explicitly states which types are accepted. This should only cause issues in corner cases, as any other values would result in runtime exceptions.
  • 5f815c0: The async pipe no longer claims to return undefined for an input that was typed as undefined. Note that the code actually returned null on undefined inputs. In the unlikely case you were relying on this, please fix the typing of the consumers of the pipe output.
  • c7d5555: The case conversion pipes no longer let falsy values through. They now map both null and undefined to null and raise an exception on invalid input (0, false, NaN) just like most "common pipes". If your code required falsy values to pass through, you need to handle them explicitly.
• compiler:
  • 736e064: TypeScript 3.9 is no longer supported, please upgrade to TypeScript 4.0.
• compiler-cli:
  • 0a16e60: Expressions within ICUs are now type-checked again, fixing a regression in Ivy. This may cause compilation failures if errors are found in expressions that appear within an ICU. Please correct these expressions to resolve the type-check errors.
• core:
  • fdea180: CollectionChangeRecord has been removed, use IterableChangeRecord instead.
  • c8f056b: If you call TestBed.overrideProvider after TestBed initialization, provider overrides are not applied. This behavior is consistent with other override methods (such as TestBed.overrideDirective, etc) but they throw an error to indicate that, when the check was missing in the TestBed.overrideProvider function. Now calling TestBed.overrideProvider after TestBed initialization also triggers an error, thus there is a chance that some tests (where TestBed.overrideProvider is called after TestBed initialization) will start to fail and require updates to move TestBed.overrideProvider calls before TestBed initialization is completed.
  • 4ca1c73: In v10, IE 9, 10, and IE mobile support was deprecated. In v11, Angular framework removes IE 9, 10, and IE mobile support completely. Supporting outdated browsers like these increases bundle size, code complexity, and test load, and also requires time and effort that could be spent on improvements to the framework. For example, fixing issues can be more difficult, as a straightforward fix for modern browsers could break old ones that have quirks due to not receiving updates from vendors.
  • 4a1c12c: ViewEncapsulation.Native has been removed. Use ViewEncapsulation.ShadowDom instead. Existing usages will be updated automatically by ng update.
• forms:
  • d9fea85: Previously if FormControl, FormGroup and FormArray class instances had async validators defined at initialization time, the status change event was not emitted once async validators completed. After this change the status event is emitted into the statusChanges observable. If your code relies on the old behavior, you can filter/ignore this additional status change event.
  • 246de9a: Directives in the @angular/forms package used to have any[] as a type of validators and asyncValidators arguments in constructors. Now these arguments are properly typed, so if your code relies on directive constructor types it may require some updates to improve type safety.
  • f4f1bcc: Type of AbstractFormControl.parent now includes null. null is now included in the types of .parent. If you don't already have a check for this case, the TypeScript compiler might complain. A v11 migration exists which adds the non-null assertion operator where necessary. In an unlikely case your code was testing the parent against undefined with strict equality, you'll need to change this to === null instead, since the parent is now explicitly initialized with null instead of being left undefined.
• platform-server:
  • b4e8399: If you use useAbsoluteUrl to setup platform-server, you now need to also specify baseUrl. We are intentionally making this a breaking change in a minor release, because if useAbsoluteUrl is set to true then the behavior of the application could be unpredictable, resulting in issues that are hard to discover but could be affecting production environments.
• platform-webworker:
  • 93c3d8f: @angular/platform-webworker and @angular/platform-webworker-dynamic have been removed as they were deprecated in v8.
• router:
  • 3817e5f: This change corrects the argument order when calling RouteReuseStrategy#shouldReuseRoute. Previously, when evaluating child routes, they would be called with the future and current arguments would be swapped. If your RouteReuseStrategy relies specifically on only the future or current snapshot state, you may need to update the shouldReuseRoute implementation's use of "future" and "current" ActivatedRouteSnapshots.
  • e4f4d18: While the new parameter types allow a variable of type NavigationExtras to be passed in, they will not allow object literals, as they may only specify known properties. They will also not accept types that do not have properties in common with the ones in the Pick. To fix this error, only specify properties from the NavigationExtras which are actually used in the respective function calls or use a type assertion on the object or variable: as NavigationExtras.
  • 837889f: This commit changes the default value of relativeLinkResolution from 'legacy' to 'default'. If your application previously used the default by not specifying a value in the ExtraOptions and uses relative links when navigating from children of empty path routes, you will need to update your RouterModule to specifically specify 'legacy' for relativeLinkResolution. See https://angular.io/api/router/ExtraOptions#relativeLinkResolution for more details.
  • c4becca: The initialNavigation property for the options in RouterModule.forRoot no longer supports legacy_disabled, legacy_enabled, true, or false as valid values. legacy_enabled (the old default) is instead enabledNonBlocking.
  • c4becca: enabled is deprecated as a valid value for the RouterModule.forRoot initialNavigation option. enabledBlocking has been introduced to replace it.
  • 783a5bd: preserveQueryParams has been removed, use queryParamsHandling: "preserve" instead.
  • b0b4953: If you were accessing the RouterLink values of queryParams, fragment or queryParamsHandling you might need to relax the typing to also accept undefined and null.

Code Refactoring

• compiler: remove support for TypeScript 3.9 (#39313) (736e064)
• router: adjust type of parameter in navigateByUrl and createUrlTree to be more accurate (#38227) (e4f4d18), closes #18798

10.2.3 (2020-11-09)

Bug Fixes

• compiler: ensure that i18n message-parts have the correct source-span (#39589) (e67a331)
• compiler: skipping leading whitespace should not break placeholder source-spans (#39589) (2b684b7), closes #39195
• compiler-cli: avoid duplicate diagnostics about unknown pipes (#39517) (861e4fa)
• compiler-cli: do not drop non-Angular decorators when downleveling (#39577) (1c6cf8a), closes #39574

10.2.2 (2020-11-04)

Bug Fixes

• compiler-cli: report missing pipes when fullTemplateTypeCheck is disabled (#39320) (71d0063), closes #38195
• core: markDirty() should only mark flags when really scheduling tick. (#39316) (8c82106), closes #39296
• router: Ensure all outlets are used when commands have a prefix (#39456) (85d5242)

Performance Improvements

• core: do not recurse into modules that have already been registered (#39514) (812355c), closes #39487

10.2.1 (2020-10-28)

Bug Fixes

• bazel: only providing stamping information if the --stamp flag is used (#39392) (ed88407)
• core: do not error when ngDevMode is undeclared (#39415) (fcebc83)
• localize: render placeholder types in extracted XLIFF files (#39459) (ea1baf9), closes #38791
• localize: serialize all the message locations to XLIFF (#39411) (db51de8), closes #39330
• ngcc: capture UMD/CommonJS inner class implementation node correctly (#39346) (bdaa714)

10.2.0 (2020-10-21)

Bug Fixes

• core: guard reading of global ngDevMode for undefined. (#36055) (02405f1)
• platform-server: Resolve absolute URL from baseUrl (#39334) (71fb99f)

BREAKING CHANGES

• platform-server: If you use useAbsoluteUrl to setup platform-server, you now need to also specify baseUrl. We are intentionally making this a breaking change in a minor release, because if useAbsoluteUrl is set to true then the behavior of the application could be unpredictable, resulting in issues that are hard to discover but could be affecting production environments.

10.1.6 (2020-10-14)

Bug Fixes

• compiler: incorrectly encapsulating @import containing colons and semicolons (#38716) (52a0c6b), closes #38587
• compiler-cli: support namespaced query types in directives (#38959) (#39272) (f752ab9)
• elements: detect matchesSelector prototype without IIFE (#37799) (952fd86), closes #24551
• ngcc: ensure that "inline exports" can be interpreted correctly (#39272) (e08d021)
• ngcc: handle aliases in UMD export declarations (#38959) (#39272) (9963c5d), closes #38947
• ngcc: map exports to the current module in UMD files (#38959) (#39272) (13c4a7b)
• ngcc: support inline export declarations in UMD files (#38959) (#39272) (9c875b3), closes #38947

build

• upgrade angular build, integration/bazel and @angular/bazel package to rule_nodejs 2.2.0 (#39182) (7628c36)

Performance Improvements

• ngcc: do not rescan program source files when referenced from multiple root files (#39254) (5221df8), closes #39240

10.1.5 (2020-10-07)

Bug Fixes

• router: update getRouteGuards to check if the context outlet is activated (#39049) (771f731), closes #39030
• compiler: Recover on malformed keyed reads and keyed writes (#39004) (f50313f), closes #38596

10.1.4 (2020-09-30)

Bug Fixes

• compiler-cli: enable @types discovery in incremental rebuilds (#39011) (6e99427), closes #38979

10.1.3 (2020-09-23)

Bug Fixes

• http: Fix error message when we call jsonp without importing HttpClientJsonpModule (#38756) (3902ec0)
• ngcc: fix compilation of ChangeDetectorRef in pipe constructors (#38892) (093c3a1), closes #38666 #38883

Reverts

• feat(router): better warning message when a router outlet has not been instantiated (#38920) (04d0aa6)

10.1.2 (2020-09-16)

Bug Fixes

• compiler: detect pipes in ICUs in template binder (#38810) (ec2dbe7), closes #38539 #38539 #38539
• core: clear the RefreshTransplantedView when detached (#38768) (edb7f90), closes #38619
• localize: ensure that formatOptions is optional (#38787) (a47383d)
• router: Ensure routes are processed in priority order and only if needed (#38780) (9c51ba3), closes #38691
• upgrade: add try/catch when downgrading injectables (#38671) (5de2ac3), closes #37579

Performance Improvements

• compiler-cli: only emit directive/pipe references that are used (#38843) (5658405)
• compiler-cli: optimize computation of type-check scope information (#38843) (ebede67)
• ngcc: introduce cache for sharing data across entry-points (#38840) (58411e7)
• ngcc: reduce maximum worker count (#38840) (ea36466)

10.1.1 (2020-09-09)

Bug Fixes

• compiler: correct confusion between field and property names (#38685) (a1c34c6)
• compiler-cli: compute source-mappings for localized strings (#38747) (b4eb016), closes #38588
• compiler-cli: ensure that a declaration is available in type-to-value conversion (#38684) (56d5ff2), closes #38670
• core: reset tView between tests in Ivy TestBed (#38659) (efc7606), closes #38600
• localize: do not expose NodeJS typings in $localize runtime code (#38700) (4de8dc3), closes #38692
• localize: enable whitespace preservation marker in XLIFF files (#38737) (190dca0), closes #38679
• localize: install [@angular](https://github.com/angular)/localize in devDependencies by default (#38680) (dbab744), closes #38329
• localize: render context of translation file parse errors (#38673) (32f33f0), closes #38377
• localize: render location in XLIFF 2 even if there is no metadata (#38713) (ab4f953), closes #38705
• ngcc: use aliased exported types correctly (#38666) (6a28675), closes #38238
• router: If users are using the Alt key when clicking the router links, prioritize browser’s default behavior (#38375) (309709d)

Performance Improvements

• core: use ngDevMode to tree-shake error messages (#38612) (b084bff)

10.1.0 (2020-09-02)

Features

• bazel: provide LinkablePackageInfo from ng_module (#37623) (6898eab)
• common: add ReadonlyMap in place of Map in keyValuePipe (#37311) (3373453), closes #37308
• compiler-cli: add SourceFile.getOriginalLocation() to sourcemaps package (#32912) (6abb8d0)
• compiler-cli: Add compiler option to report errors when assigning to restricted input fields (#38249) (71138f6)
• compiler-cli: add support for TypeScript 4.0 (#38076) (0fc44e0)
• compiler-cli: explain why an expression cannot be used in AOT compilations (#37587) (712f1bd)
• compiler: support unary operators for more accurate type checking (#37918) (874792d), closes #20845 #36178
• core: rename async to waitForAsync to avoid confusing (#37583) (8f07429)
• core: support injection token as predicate in queries (#37506) (97dc85b), closes #21152 #36144
• core: update reference and doc to change async to waitAsync. (#37583) (8fbf40b)
• forms: AbstractControl to store raw validators in addition to combined validators function (#37881) (ad7046b)
• localize: allow duplicate messages to be handled during extraction (#38082) (cf9a47b), closes #38077
• localize: expose canParse() diagnostics (#37909) (ec32eba), closes #37901
• localize: implement message extraction tool (#32912) (190561d)
• platform-browser: Allow sms-URLs (#31463) (fc5c34d), closes #31462
• platform-server: add option for absolute URL HTTP support (#37539) (d37049a), closes #37071
• router: better warning message when a router outlet has not been instantiated (#30246) (1609815)

Bug Fixes

• bazel: fix integration test for bazel building (#38629) (dd82f2f)
• common: date pipe gives wrong week number (#37632) (ef1fb6d), closes #33961
• common: narrow NgIf context variables in template type checker (#36627) (9c8bc4a)
• compiler-cli: avoid creating value expressions for symbols from type-only imports (#37912) (18098d3), closes #37900
• compiler-cli: ensure source-maps can handle webpack:// protocol (#32912) (decd95e)
• compiler-cli: only read source-map comment from last line (#32912) (07a07e3)
• compiler-cli: type-check inputs that include undefined when there's coercion members (#38273) (7525f3a)
• compiler: incorrectly inferring namespace for HTML nodes inside SVG (#38477) (0dda97e), closes #37218
• compiler: mark NgModuleFactory construction as not side effectful (#38147) (7f8c222)
• core: Allow modification of lifecycle hooks any time before bootstrap (#35464) (737506e), closes #30497
• core: detect DI parameters in JIT mode for downleveled ES2015 classes (#38463) (ca07da4), closes #38453
• core: determine required DOMParser feature availability (#36578) (#36578) (c509243)
• core: do not trigger CSP alert/report in Firefox and Chrome (#36578) (#36578) (b950d46), closes #25214
• core: move generated i18n statements to the consts field of ComponentDef (#38404) (cb05c01)
• elements: run strategy methods in correct zone (#37814) (8df888d), closes #24181
• forms: handle form groups/arrays own pending async validation (#22575) (77b62a5), closes #10064
• language-service: non-existent module format in package output (#37623) (413a0fb)
• localize: ensure required XLIFF parameters are serialized (#38575) (f0af387), closes #38570
• localize: extract the correct message ids (#38498) (ac461e1)
• localize: render ICU placeholders in extracted translation files (#38484) (81c3e80)
• localize: render text of extracted placeholders (#38536) (14e90be)
• ngcc: detect synthesized delegate constructors for downleveled ES2015 classes (#38463) (3b9c802), closes #38453 #38453
• router: defer loading of wildcard module until needed (#38348) (8f708b5), closes #25494
• router: fix navigation ignoring logic to compare to the browser url (#37716) (a5ffca0), closes #16710 #13586
• router: properly compare array queryParams for equality (#37709) (#37860) (1801d0c)
• router: remove parenthesis for primary outlet segment after removing auxiliary outlet segment (#24656) (#37163) (71f008f)
• router: restore 'history.state' object for navigations coming from Angular router (#28108) (#28176) (df76a20)

Code Refactoring

• router: export DefaultRouteReuseStrategy to Router public_api (#31575) (ca79880)

Performance Improvements

• compiler-cli: don't emit template guards when child scope is empty (#38418) (1388c17)
• compiler-cli: fix regressions in incremental program reuse (#37641) (5103d90)
• compiler-cli: only generate directive declarations when used (#38418) (fb8f4b4)
• compiler-cli: only generate type-check code for referenced DOM elements (#38418) (f42e6ce)
• forms: use internal ngDevMode flag to tree-shake error messages in prod builds (#37821) (201a546), closes #37697
• ngcc: shortcircuit tokenizing in ESM dependency host (#37639) (bd7f440)
• ngcc: use EntryPointManifest to speed up noop ProgramBaseEntryPointFinder (#37665) (9318e23)
• router: apply prioritizedGuardValue operator to optimize CanLoad guards (#37523) (d7dd295)

10.0.14 (2020-08-26)

10.0.12 (2020-08-24)

Bug Fixes

• compiler-cli: adding references to const enums in runtime code (#38542) (814b436), closes #38513
• core: remove closing body tag from inert DOM builder (#38454) (5528536)
• localize: include the last placeholder in parsed translation text (#38452) (57d1a48)
• localize: parse all parts of a translation with nested HTML (#38452) (07b99f5), closes #38422

Features

• language-service: introduce hybrid visitor to locate AST node (#38540) (66d8c22)

10.0.11 (2020-08-19)

Bug Fixes

• router: ensure routerLinkActive updates when associated routerLinks change (resubmit of #38349) (#38511) (0af9533), closes #18469

10.0.10 (2020-08-17)

Bug Fixes

• common: Allow scrolling when browser supports scrollTo (#38468) (b32126c), closes #30630
• core: detect DI parameters in JIT mode for downleveled ES2015 classes (#38500) (863acb6), closes #38453
• core: error if CSS custom property in host binding has number in name (#38432) (cb83b8a), closes #37292
• core: fix multiple nested views removal from ViewContainerRef (#38317) (d5e09f4), closes #38201
• ngcc: detect synthesized delegate constructors for downleveled ES2015 classes (#38500) (f3dd6c2), closes #38453 #38453
• router: ensure routerLinkActive updates when associated routerLinks change (#38349) (989e8a1), closes #18469

10.0.9 (2020-08-12)

Bug Fixes

• common: ensure scrollRestoration is writable (#30630) (#38357) (58f4b3a), closes #30629
• compiler: evaluate safe navigation expressions in correct binding order (#37911) (f5b9d87), closes #37194
• compiler-cli: avoid creating value expressions for symbols from type-only imports (#38415) (ca2b4bc), closes #37912
• compiler-cli: infer quote expressions as any type in type checker (#37917) (5b87c67), closes #36568
• compiler-cli: mark eager NgModuleFactory construction as not side effectful (#38320) (016a41b), closes #38147
• compiler-cli: match wrapHost parameter types within plugin interface (#38004) (df01a82)
• compiler-cli: preserve quotes in class member names (#38387) (c9acb7b), closes #38311
• core: prevent NgModule scope being overwritten in JIT compiler (#37795) (3acebdc), closes #37105
• core: queries not matching string injection tokens (#38321) (32109dc), closes #38313 #38315
• core: Store the currently selected ICU in LView (#38345) (ee5123f)
• platform-server: remove styles added by ServerStylesHost on destruction (#38367) (7f11149)
• router: prevent calling unsubscribe on undefined subscription in RouterPreloader (#38344) (4151314)
• service-worker: fix the chrome debugger syntax highlighter (#38332) (f5d5bac)

10.0.8 (2020-08-04)

Bug Fixes

• compiler: add PURE annotation to getInheritedFactory calls (#38291) (03d8e31)
• compiler: update unparsable character reference entity error messages (#38319) (cea4678), closes #26067

10.0.7 (2020-07-30)

Bug Fixes

• compiler: Metadata should not include methods on Object.prototype (#38292) (879ff08)

10.0.6 (2020-07-28)

Bug Fixes

• compiler: share identical stylesheets between components in the same file (#38213) (264950b), closes #38204
• compiler-cli: Add support for string literal class members (#38226) (b1e7775)
• core: Attribute decorator attributeName is mandatory (#38131) (1c4fcce), closes #32658
• core: unify the signature between ngZone and noopZone (#37581) (d5264f5)

10.0.5 (2020-07-22)

Bug Fixes

• compiler: properly associate source spans for implicitly closed elements (#38126) (e80278c), closes #36118
• compiler-cli: ensure file_system handles mixed Windows drives (#38030) (dba4023), closes #36777
• core: Allow modification of lifecycle hooks any time before bootstrap (#38119) (14b4718), closes #30497
• core: error due to integer overflow when there are too many host bindings (#38014) (7b6e73c), closes #37876 #37876
• core: incorrectly validating properties on ng-content and ng-container (#37773) (17ddab9)

10.0.4 (2020-07-15)

Bug Fixes

• bazel: ng_module rule does not expose flat module information in Ivy (#36971) (b76a2dc)
• compiler: check more cases for pipe usage inside host bindings (#37883) (a94383f), closes #34655 #37610
• language-service: non-existent module format in package output (#37778) (12f1773)
• language-service: remove completion for string (#37983) (387e838)
• ngcc: report a warning if ngcc tries to use a solution-style tsconfig (#38003) (e3b8010), closes #36386
• service-worker: correctly handle relative base href (#37922) (b186db7), closes #25055 #25055
• service-worker: correctly serve ngsw/state with a non-root SW scope (#37922) (dc42c97), closes #30505

Features

• bazel: provide LinkablePackageInfo from ng_module (#37778) (6cd10a1), closes /github.com/bazelbuild/rules_nodejs/blob/9a5de3728b05bf1647bbb87ad99f54e626604705/internal/linker/link_node_modules.bzl#L144-L146

10.0.3 (2020-07-08)

Bug Fixes

• core: handle spaces after select and plural ICU keywords (#37866) (790bb94)

9.1.12 (2020-07-08)

Bug Fixes

• core: infinite loop if injectable using inheritance has a custom decorator (6c1ab47), closes #35733

10.0.2 (2020-06-30)

Bug Fixes

• core: determine required DOMParser feature availability (#36578) (#37783) (12a71bc)
• core: do not trigger CSP alert/report in Firefox and Chrome (#36578) (#37783) (b0b7248), closes #25214
• core: don't consider inherited NG_ELEMENT_ID during DI (#37574) (64b0ae9), closes #36235
• core: error when invoking callbacks registered via ViewRef.onDestroy (#37543) (75b119e), closes #36213
• core: error when invoking callbacks registered via ViewRef.onDestroy (#37543) (#37783) (df2cd37), closes #36213
• core: fake_async_fallback should have the same logic with fake-async (#37680) (7a91b23)
• elements: fire custom element output events during component initialization (#37570) (89e16ed), closes /github.com/angular/angular/blob/c0143cb2abdd172de1b95fd1d2c4cfc738640e28/packages/elements/src/create-custom-element.ts#L167-L170 /github.com/angular/angular/blob/c0143cb2abdd172de1b95fd1d2c4cfc738640e28/packages/elements/src/create-custom-element.ts#L164 /github.com/angular/angular/blob/c0143cb2abdd172de1b95fd1d2c4cfc738640e28/packages/elements/src/component-factory-strategy.ts#L158 #36141
• language-service: incorrect autocomplete results on unknown symbol (#37518) (7c0b25f)
• ngcc: ensure lockfile is removed when analyzeFn fails (#37739) (1a1f99a)
• ngcc: prevent including JavaScript sources outside of the package (#37596) (4b90b6a), closes #37508

Performance Improvements

• compiler-cli: fix memory leak in retained incremental state (#37835) (57a518a)

10.0.1 (2020-06-26)

Bug Fixes

• core: cleanup DOM elements when root view is removed (#37600) (64f2ffa), closes #36449
• forms: change error message (#37643) (c5bc2e7)
• forms: correct usage of selectedOptions (#37620) (dfb58c4), closes #37433
• http: avoid abort a request when fetch operation is completed (#37367) (a5d5f67)
• language-service: reinstate getExternalFiles() (#37750) (ad6680f)
• migrations: do not incorrectly add todo for @Injectable or @Pipe (#37732) (13020b9), closes #37726
• router: RouterLinkActive should run CD when setting isActive (#21411) (a8ea817), closes #15943 #19934
• router: add null support for RouterLink directive (#32616) (69948ce)
• router: fix error when calling ParamMap.get function (#31599) (3190ccf)

Performance Improvements

• compiler-cli: fix regressions in incremental program reuse (#37690) (96b96fb)

10.0.0 (2020-06-24)

Blog post "Version 10 of Angular Now Available".

Release Highlights & Update instructions

To learn about the release highlights and our CLI-powered automated update workflow for your projects please check out the v10 release announcement.

Features

• bazel: expose explicit mapping from closure to devmode files (#36262) (ba796bb)
• bazel: simplify ng_package by dropping esm5 and fesm5 (#36944) (9dbb30f)
• compiler-cli: report error if undecorated class with Angular features is discovered (#36921) (4c92cf4)
• compiler: Propagate value span of ExpressionBinding to ParsedProperty (#36133) (d714b95)
• compiler: add dependency info and ng-content selectors to metadata (#35695) (32ce8b1)
• compiler: add name spans for property reads and method calls (#36826) (eb34aa5)
• core make generic mandatory for ModuleWithProviders (#36892) (20cc3ab)
• core update to tslib 2.0 and move to direct dependencies (#37198), closes #37188
• core: undecorated-classes migration should handle derived abstract classes (#35339) (c24ad56)
• core: undecorated-classes-with-decorated-fields migration should handle classes with lifecycle hooks (#36921) (c6ecdc9)
• language-service: Remove HTML entities autocompletion (#37515) (67bd88b)
• language-service: TS references from template items (#37437) (bf2cb6f)
• language-service: [ivy] Parse Angular compiler options (#36922) (dbd0f8e)
• language-service: [ivy] wrap ngtsc to handle typecheck files (#36930) (1142c37)
• localize: support merging multiple translation files (#36792) (72f534f)
• ngcc: allow async locking timeouts to be configured (#36838) (38f805c)
• ngcc: implement a program-based entry-point finder (#37075) (f3ccd29)
• ngcc: support for new APF where module points to esm2015 output (#36944) (c98a4d6)
• ngcc: support marking an in-progress task as unprocessed (#36626) (4665c35)
• ngcc: support reverting a file written by FileWriter (#36626) (772ccf0)
• platform-server: use absolute URLs from Location for HTTP (#37071) (9edea0b)
• router: allow CanLoad guard to return UrlTree (#36610) (00e6cb1), closes #26521 #28306
• service-worker: include CacheQueryOptions options in ngsw-config (#34663) (dc9f4b9), closes #28443
• service-worker: support timeout in registerWhenStable SW registration strategy (#35870) (00efacf), closes #34464
• service-worker: use ignoreVary: true when retrieving responses from cache (#34663) (ee35e22), closes #36638
• remove TypeScript 3.6 and 3.7 support (#36329) (fbd281c)
• remove support for TypeScript 3.8 (#37129) (6466fb2)