Update angular monorepo to v21 (major)

[renovate]

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
@angular/animations (source)	17.3.12 → 21.2.9
@angular/common (source)	17.3.12 → 21.2.9
@angular/compiler (source)	17.3.12 → 21.2.9
@angular/compiler-cli (source)	17.3.12 → 21.2.9
@angular/core (source)	17.3.12 → 21.2.9
@angular/forms (source)	17.3.12 → 21.2.9
@angular/platform-browser (source)	17.3.12 → 21.2.9
@angular/platform-browser-dynamic (source)	17.3.12 → 21.2.9
@angular/router (source)	17.3.12 → 21.2.9

---

Release Notes

angular/angular (@​angular/animations)

v21.2.9

Compare Source

core

Commit	Type	Description
f603d4714f	fix	escape forward slashes in transfer state to prevent crawler indexing

http

Commit	Type	Description
540536c386	fix	add CSP nonce support to JsonpClientBackend
63a857b874	fix	Don't on Passthru outside of reactive context

platform-server

Commit	Type	Description
e0b5078cf2	fix	prevent SSRF bypasses via protocol-relative and backslash URLs

router

Commit	Type	Description
684e9fd53d	fix	normalize multiple leading slashes in URL parser

v21.2.8

Compare Source

compiler

Commit	Type	Description
e40d378f3e	fix	handle nested brackets in host object bindings

compiler-cli

Commit	Type	Description
2c6781071f	fix	error for type parameter declarations

core

Commit	Type	Description
82192deda9	fix	handle missing serialized container hydration data
057cc6d09d	fix	remove obsolete iOS cursor pointer hack in event delegation

language-service

Commit	Type	Description
7797671257	fix	get quick info at local var location to align with TS semantics and support type narrowing

v21.2.7

Compare Source

compiler

Commit	Type	Description
fea25d1a60	fix	register SVG animation attributes in URL security context (#​67797)

compiler-cli

Commit	Type	Description
bba5ed8e64	fix	prevent recursive scope checks for invalid NgModule imports

core

Commit	Type	Description
d04ddd73df	fix	prevent binding unsafe attributes on SVG animation elements (#​67797)
8fd896e99a	fix	resolve component import by exact specifier in route lazy-loading schematic
b682c62873	fix	treat object[data] as resource URL context (#​67797)

localize

Commit	Type	Description
3c41e74fdd	fix	validate locale in getOutputPathFn to prevent path traversal

router

Commit	Type	Description
0960592d3d	fix	pass outlet context to split to fix empty path named outlets

v21.2.6

Compare Source

common

Commit	Type	Description
b4ab6ba2e8	fix	avoid redundant image fetch on destroy with auto sizes

compiler

Commit	Type	Description
880a57d4b3	fix	prevent shimCssText from adding extra blank lines per CSS comment

core

Commit	Type	Description
ad0156e056	fix	fixes a regression with animate.leave and reordering

migrations

Commit	Type	Description
73d6b01b47	fix	inject migration not work in multi-project workspace with option path

v21.2.5

Compare Source

compiler

Commit	Type	Description
334ae10168	fix	ensure generated code compiles
23ea431c4e	fix	parse named HTML entities containing digits

compiler-cli

Commit	Type	Description
26c43d14ba	fix	escape template literal in TCB
67e0ba7e03	fix	generic types not filled out correctly in type check block

core

Commit	Type	Description
1890c3008b	fix	clean up dehydrated views during HMR component replacement
bf948be4c2	fix	run linked signal equality check without reactive consumer

migrations

Commit	Type	Description
076d41c3f6	fix	prevent trailing comma syntax errors after removing NgStyle

service-worker

Commit	Type	Description
e19150d2b5	fix	preserve redirect policy on reconstructed asset requests

v21.2.4

Compare Source

compiler

Commit	Type	Description
ed2d324f9c	fix	disallow translations of iframe src

core

Commit	Type	Description
abbd8797bb	fix	reverts "feat(core): add support for nested animations"
d1dcd16c5b	fix	sanitize translated form attributes

v21.2.3

Compare Source

core

Commit	Type	Description
62a97f7e4b	fix	ensure definitions compile
21b1c3b2ee	fix	include signal debug names in their toString() representation
224e60ecb1	fix	sanitize translated attribute bindings with interpolations

v21.2.2

Compare Source

compiler

Commit	Type	Description
1df1697c6e	fix	prevent mutation of children array in RecursiveVisitor

compiler-cli

Commit	Type	Description
c822bf8e76	fix	always parenthesize object literals in TCB
05d022d5e6	fix	ignore generated ngDevMode signal branch for code coverage

forms

Commit	Type	Description
670d1660c4	feat	add 'blur' option to debounce rule

v21.2.1

Compare Source

core

Commit	Type	Description
e2e9a9a531	fix	adds transfer cache to httpResource to fix hydration
b4ec3cc4e4	fix	prevent child animation elements from being orphaned
e923d88398	fix	Prevent removal of elements during drag and drop

http

Commit	Type	Description
277ade97ac	fix	correctly cache blob responses in transfer cache (#​67002)

v21.2.0

Compare Source

common

Commit	Type	Description
18003a33bb	feat	add an 'outlet' injector option for ngTemplateOutlet
8bbe6dc46c	feat	Add Location strategies to manage trailing slash on write
51cc914807	feat	support height in ImageLoaderConfig and built-in loaders

compiler

Commit	Type	Description
72534e2a34	feat	Add support for the instanceof binary operator
95b3f37d4a	feat	Exhaustive checks for switch blocks
04ba09a8d9	feat	support AstVisitor.visitEmptyExpr()
ce80136e7b	fix	optimize away unnecessary restore/reset view calls
3242a61bae	fix	variable counter visiting some expressions twice

compiler-cli

Commit	Type	Description
473dd3e1cb	fix	attach source spans to object literal keys in TCB
a904d9f77b	fix	support nested component declaration
2ea6dfc6c9	fix	update diagnostic to flag no-op arrow functions in listeners

core

Commit	Type	Description
8d5210c9fe	feat	add ChangeDetectionStrategy.Eager alias for Default
92d2498910	feat	add host node to DeferBlockData (#​66546)
ea2016a6dc	feat	add support for nested animations
81cabc1477	feat	add support for TypeScript 6
1ba9b7ac50	feat	resource composition via snapshots
d9923b72a2	feat	support arrow functions in expressions
a7e8abbb7e	fix	correctly handle SkipSelf when resolving from embedded view injector
0806ee3826	fix	prevent animated element duplication with dynamic components in zoneless mode
ed78fa05c7	fix	Remove note to skip arrow functions in best practices

forms

Commit	Type	Description
f56bb07d83	feat	add field param to submit action and onInvalid
ba009b6031	feat	add form directive
22afbb2f36	feat	add parsing support to native inputs (#​66917)
95c386469c	feat	Add passing focus options to form field
95ecce8334	feat	allow setting submit options at form-level
ebae211add	feat	introduce parse errors in signal forms
3937afc316	feat	introduce SignalFormControl for Reactive Forms compatibility
30f0914754	feat	support binding null to number input (#​66917)
dd208ca259	feat	update submit function to accept options object
27397b3f4f	fix	clear parse errors when model updates (#​66917)
63d8005703	fix	preserve custom-control focus context in signal forms
631f60d1f9	fix	preserve parse errors when parse returns value
adfb83146b	fix	simplify design of parse errors
fb05fc86d0	fix	sort error summary by DOM order
567f292e8e	fix	support custom controls as host directives
bdfb60f3e3	fix	use consistent error format returned from parse
d75046bc09	fix	warn when showing hidden field state

language-server

Commit	Type	Description
ebc90c26f5	feat	Add completions and hover info for inline styles
26fd0839c3	feat	Add folding range support for inline styles
573aadef7e	feat	Add quick info for inline styles
6fb39d9b62	feat	Support client-side file watching via onDidChangeWatchedFiles

language-service

Commit	Type	Description
496967e7b1	feat	add JSON schema for angularCompilerOptions
8c21866f49	feat	add linked editing ranges for HTML tag synchronization
d2137928e8	perf	use lightweight project warmup for Angular analysis

router

Commit	Type	Description
b51bab583d	feat	Add partial ActivatedRouteSnapshot information to canMatch params
cf9620f7d0	feat	Make match options optional in isActive
907a94dcec	feat	Update IsActiveMatchOptions APIs to accept a Partial

v21.1.6

Compare Source

Breaking Changes

core

• Angular now only applies known attributes from HTML in translated ICU content. Unknown attributes are dropped and not rendered.

  (cherry picked from commit 306f367)

common

Commit	Type	Description
31d3d56496	fix	fix LCP image detection with duplicate URLs

compiler-cli

Commit	Type	Description
24b578ce90	fix	detect uninvoked functions in defer trigger expressions

core

Commit	Type	Description
b858309532	fix	block creation of sensitive URI attributes from ICU messages

v21.1.5

Compare Source

No user facing changes in this release

v21.1.4

Compare Source

compiler

Commit	Type	Description
caab23dfe6	fix	add geolocation element to schema

core

Commit	Type	Description
2b99eaa019	fix	capture animation dependencies eagerly to avoid destroyed injector
d6aeac504c	fix	Fix flakey test due to document injection

forms

Commit	Type	Description
0d1acd0165	feat	support signal-based schemas in validateStandardSchema

http

Commit	Type	Description
3905015ccc	fix	correctly parse ArrayBuffer and Blob in transfer cache

v21.1.3

Compare Source

core

Commit	Type	Description
2b254bc050	fix	linkedSignal.update should propagate errors
e5110b4fa1	fix	export DirectiveWithBindings
2cf4da0ea1	fix	hold constructors weakly in DepsTracker cache
70a5b651be	fix	prevent element duplication with dynamic components

forms

Commit	Type	Description
6f75b6e3f6	fix	Resolves debounce promise on abort in debounceForDuration

localize

Commit	Type	Description
4c7126d23b	fix	add support for unit-test builder in ng-add schematic

router

Commit	Type	Description
d6268c0bbb	fix	limit UrlParser recursion depth to prevent stack overflow
49a36f4cc7	perf	Use .bind to avoid holding other closures in memory

v21.1.2

Compare Source

forms

Commit	Type	Description
9f99b14882	fix	only touch visible, interactive fields on submit

language-service

Commit	Type	Description
c57b0355b5	fix	Detect local project version on creation

router

Commit	Type	Description
21ecdc036a	fix	Do not intercept reload events with Navigation integration

v21.1.1

Compare Source

compiler-cli

Commit	Type	Description
0e1f1ed573	fix	drop .tsx extension for generated relative imports

core

Commit	Type	Description
05adfcf8f2	fix	handle Set in class bindings

forms

Commit	Type	Description
d89a80a970	feat	Ability to manually register a form field binding in signal forms
cb75f9ce85	fix	fix control value syncing on touch

v21.1.0

Compare Source

Deprecations

upgrade

• VERSION from @angular/upgrade is deprecated. Please use the entry from @angular/upgrade/static instead.

common

Commit	Type	Description
d8790972be	feat	Add custom transformations for Cloudflare and Cloudinary image loaders
a6b8cb68af	feat	support custom transformations in ImageKit and Imgix loaders

compiler

Commit	Type	Description
640693da8e	feat	Add support for multiple swich cases matching
0ad3adc7c6	fix	Support empty cases

core

Commit	Type	Description
99ad18a4ee	feat	Add stability debugging utility
a0dfa5fa86	feat	support rest arguments in function calls
6e18fa8bc9	feat	support spread elements in array literals
e407280ab5	feat	support spread expressions in object literals
06be8034bb	fix	Microtask scheduling should be used after any application synchronization
b4f584cf42	fix	return StaticProvider for providePlatformInitializer

forms

Commit	Type	Description
1ea5c97703	feat	allow focusing bound control from field state

platform-browser

Commit	Type	Description
ec9dc94cee	feat	add context to createApplication
ab67988d2e	feat	resolve JIT resources in createApplication

router

Commit	Type	Description
5edceffd04	feat	add controls for route cleanup
a03c82564d	feat	Add scroll behavior controls on router navigation
e44839b016	feat	Add standalone function to create a comptued for isActive
c25d749d85	feat	Execute RunGuardsAndResolvers function in injection context
1c00ab42f8	feat	extend paramters of RedirectFunction to include paramMap and queryParamMap
7003e8d241	feat	Publish Router's integration with platform Navigation API as experimental
c84d372778	feat	Support wildcard params with segments trailing (#​64737)

upgrade

Commit	Type	Description
75fe8f8af9	refactor	deprecate VERSION export

v21.0.9

Compare Source

forms

Commit	Type	Description
82d556a8fb	fix	Ensure the control instruction comes after the other bindings
[0055f3cc79](https://redirect.github.com/angular/an

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⚠️ Artifact update problem

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The artifact failure details are included below:

File name: web/autosubliminal/package-lock.json

npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR! 
npm ERR! While resolving: @angular-devkit/build-angular@17.3.17
npm ERR! Found: @angular/compiler-cli@21.2.9
npm ERR! node_modules/@angular/compiler-cli
npm ERR!   dev @angular/compiler-cli@"21.2.9" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer @angular/compiler-cli@"^17.0.0" from @angular-devkit/build-angular@17.3.17
npm ERR! node_modules/@angular-devkit/build-angular
npm ERR!   dev @angular-devkit/build-angular@"17.3.17" from the root project
npm ERR! 
npm ERR! Conflicting peer dependency: @angular/compiler-cli@17.3.12
npm ERR! node_modules/@angular/compiler-cli
npm ERR!   peer @angular/compiler-cli@"^17.0.0" from @angular-devkit/build-angular@17.3.17
npm ERR!   node_modules/@angular-devkit/build-angular
npm ERR!     dev @angular-devkit/build-angular@"17.3.17" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! 
npm ERR! See /runner/cache/others/npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /runner/cache/others/npm/_logs/2026-04-16T10_07_10_839Z-debug-0.log

[coveralls]

coverage: 44.655%. remained the same — renovate/major-angular-monorepo into development