Update angular-cli 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-devkit/build-angular	15.2.11 → 21.2.3
@angular/cli	15.2.11 → 21.2.3

---

Release Notes

angular/angular-cli (@​angular-devkit/build-angular)

v21.2.3

Compare Source

@​angular/cli

Commit	Type	Description
1505164bb	fix	use parsed package name for migrate-only updates

@​angular/build

Commit	Type	Description
75fa94cad	fix	alias createRequire banner import to avoid duplicate binding
d009aa1ec	fix	only use external packages for polyfills when no local files are present

@​angular/ssr

Commit	Type	Description
f3e0e82c2	fix	disallow x-forwarded-prefix starting with a backslash
b8bcd59b4	fix	ensure unique values in redirect response Vary header
84385411d	fix	support custom headers in redirect responses

v21.2.2

Compare Source

@​angular/cli

Commit	Type	Description
8447d9132	fix	conditionally quote package names when adding dependencies based on host requirements
d2f209823	fix	preserve exact version in ng add when requested
28f4d684a	perf	avoid redundant package version resolution in ng add

@​angular/build

Commit	Type	Description
06010294f	fix	allow any CHROME_BIN for vitest playwright provider
8dec0c62b	fix	normalize line endings for CSP hash generation
58688ebd7	fix	pass process environment variables to prerender workers
4ca61647f	fix	resolve assets correctly during i18n prerendering

v21.2.1

Compare Source

@​angular/cli

Commit	Type	Description
ae4c28d00	fix	correct dev dependency detection logic in ng add
465073bc1	fix	disable npm update notifier in package manager host
36270634f	fix	ensure group members are updated to targeted version
d87dba6af	fix	ignore unknown files when formatting schematic changes

@​schematics/angular

Commit	Type	Description
72d466aa0	fix	prevent adding test dependencies when minimal option is enabled

@​angular-devkit/build-angular

Commit	Type	Description
0019d1c8e	fix	update copy-webpack-plugin to v14.0.0

@​angular/build

Commit	Type	Description
6ad860863	fix	bundle polyfills to preserve execution order in dev server
d17397375	fix	conditionally allow vi.mock for non-relative imports
0d49f86ed	fix	resolve style include paths relative to ng-package.json in unit-test builder
584f6a2d9	fix	treat empty browsers array as undefined in unit-test builder
6699cdc9b	perf	fix memory leak in ng serve with i18n

@​angular/ssr

Commit	Type	Description
43a9dfa66	fix	improve header validation logic
dee3717b3	fix	introduce DI token to signal route discovery process

v21.2.0

Compare Source

@​angular/cli

Commit	Type	Description
0dd04f289	feat	add markdown files to Prettier's formatting list
fbae1b6ab	feat	automatic formatting files modified by schematics
91b9d281f	feat	integrate file formatting into update migrations
98a24d040	feat	standardize MCP tools around workspace/project options
d9cd609c5	fix	correctly parse scoped packages in yarn classic list output
5b05f2500	fix	enable shell option for Prettier execution on Windows platforms
25b8a157d	fix	quote complex range specifiers in package manager
6f29a8c35	fix	renamed files by their new path in the schematic workflow
201a036f2	fix	simplify Angular version compatibility checks and add special handling for local builds of new major versions
cdd26bb66	fix	validate package manager version using semver.valid and throw an error if invalid
bc363af8b	perf	optimize package manager discovery with stat-based probing

@​schematics/angular

Commit	Type	Description
aa7381efd	feat	add a '.prettierrc' file to generated workspaces and add Prettier as dev dependency
f80db6fb7	feat	add ng-add support for Vitest browser providers
5d1df50d8	fix	add actionable feedback to vitest-browser schematic

@​angular/build

Commit	Type	Description
ece30f235	feat	add headless option to unit-test builder
cad7a7c0f	feat	run vitest browser with playwright with OS theme
0b4982720	fix	adjust sourcemap sources when Vitest wrapper is bypassed
1f114a9e8	fix	bundle setup files in unit-test builder for Vitest
fd5cb28c8	fix	explicitly fail when using Vitest runtime mocking
dc899e8a5	fix	normalize allowedHosts in dev-server
26bbea12f	fix	serve extensionless assets without transformation

v21.1.5

Compare Source

@​angular/ssr

Commit	Type	Description
8695d6063	fix	prevent open redirect via X-Forwarded-Prefix header
e4d445ec6	fix	validate host headers to prevent header-based SSRF

v21.1.4

Compare Source

@​angular/build

Commit	Type	Description
7a9dd6b47	fix	correctly resolve absolute setup file paths in Vitest

v21.1.3

Compare Source

@​schematics/angular

Commit	Type	Description
a18196a10	fix	warn when production configuration is missing for service worker

@​angular-devkit/build-angular

Commit	Type	Description
6d05d27ca	fix	address Node.js deprecation DEP0190

v21.1.2

Compare Source

@​angular-devkit/schematics-cli

Commit	Type	Description
e7458c81d	fix	Add boolean type inference for 'true' and 'false' string values in argument parsing

@​angular-devkit/architect

Commit	Type	Description
d66f1fe64	fix	Add boolean type inference for 'true' and 'false' string values in argument parsing

@​angular/build

Commit	Type	Description
80911af67	fix	loosen Vitest dependency checks when runnerConfig is used
2d30639d3	fix	support merging coverage thresholds with Vitest runnerConfig

v21.1.1

Compare Source

@​angular/cli

Commit	Type	Description
151b69587	fix	Remove nonexistent link from MCP response

@​schematics/angular

Commit	Type	Description
9da6d8fa7	fix	correct vscode MCP configuration for new projects
361758c75	fix	remove special characters from jasmine-vitest report filename

@​angular/build

Commit	Type	Description
1b7e3307a	fix	allow application assets in workspace root
d1e596dc5	fix	prevent incorrect catch binding removal in downleveled for-await
98ef0981a	fix	update undici to v7.18.2

v21.1.0

Compare Source

@​angular/cli

Commit	Type	Description
772e6efe7	feat	add 'test' and 'e2e' MCP tools
8efb86318	feat	Add "all" as an experimental tool group
c3c9ac506	feat	Add MCP tools for building and running devservers
d635a6c63	feat	add signal forms lessons
d8b76e93d	fix	correctly handle yarn classic tag manifest fetching
7ab5c0b0a	fix	correctly spawn package managers on Windows in new abstraction
348096623	fix	enhance list_projects MCP tool file system traversal and symlink handling
316fca862	fix	handle array output from npm view in manifest parser
032257a6d	fix	improve signal forms lesson examples in AI tutor
18d74dde8	fix	rename mcp devserver tools to comply with naming spec
1ad773671	fix	update dependency @​modelcontextprotocol/sdk to v1.25.2
45d4f5668	fix	update yarn berry package manager configuration
122ed27c9	fix	use project-local temporary directory in ng add
a15db28b2	perf	cache resolved specific version in package manager abstraction
240588b7e	perf	optimize ng add version discovery

@​schematics/angular

Commit	Type	Description
36cf3afb4	feat	add browserMode option to jasmine-vitest schematic
e71a72ffd	feat	generate detailed migration report for refactor-jasmine-vitest
18cf6c51b	fix	add MCP configuration file to new workspaces

@​angular/build

Commit	Type	Description
1eda0a99f	feat	directly support ng-packagr in unit-test builder
87175f9dc	feat	disable TestBed teardown during debugging in Vitest
1e39c77a4	fix	inject source-map-support for Vitest browser tests
3fd7dcd76	fix	normalize roots to POSIX in test discovery for Windows compatibility
164e7dbbc	fix	resolve test files correctly on Windows when using non-C drives
ad99e00ad	fix	simplify SSL handling for ng serve with SSR (#​31722)

v21.0.6

Compare Source

@​angular/ssr

Commit	Type	Description
730ae6609	fix	handle platform destruction during rendering

v21.0.5

Compare Source

@​angular/cli

Commit	Type	Description
249563749	fix	use narrower types for new MCP TS SDK compatibility

@​schematics/angular

Commit	Type	Description
cbd0718b9	fix	move 'provideZoneChangeDetection' to the root module
33f7cf761	fix	update application schematics for module-based apps to use 'provideZoneChangeDetection'
37b14d1f7	fix	update default app component message
c37dccb09	fix	update default app component welcome message

@​angular/build

Commit	Type	Description
2b9be3a7c	fix	ensure correct project targeting during Vitest debugging

v21.0.4

Compare Source

@​schematics/angular

Commit	Type	Description
b671245b9	fix	improve VS Code background compilation start/end detection
85a28dec7	fix	remove inlineSources from library tsconfig template

@​angular/build

Commit	Type	Description
deb4fff61	fix	add browser condition to resolver for vitest
570ce8d3e	fix	allow non-prefixed requests when using SSR and base href
4dd3c1a32	fix	conditionally manage Vitest UI option
4b8b7caec	fix	ensure tests run when compilation error is resolved
bef4fcecb	fix	remove LmdbCacheStore export from private API

@​angular/ssr

Commit	Type	Description
bb54747da	fix	add leading slash to well-known non-Angular URLs
0cfe2e749	fix	propagate status code to redirect
eadadb848	fix	skip SSR processing for well-known non-Angular URLs like favicon.ico

v21.0.3

Compare Source

@​angular-devkit/build-angular

Commit	Type	Description
5d85f416f	fix	conditionally provide Zone.js change detection in the built-in test main file

@​angular/build

Commit	Type	Description
778b4cffc	fix	Add custom middleware for to present an Angular-tailored message
9b02ab2ee	fix	Ensure disposal of close-javascript-transformer
0fc7d576e	fix	ensure locale base href retains leading slash (#​32040)
b141670a2	fix	inject testing polyfills in Karma unit-test executor
88c18ce68	fix	support NODE_EXTRA_CA_CERTS in SSR SSL plugin

v21.0.2

Compare Source

@​angular/cli

Commit	Type	Description
f1a7116cd	fix	update @modelcontextprotocol/sdk to v1.24.0

@​angular-devkit/schematics

Commit	Type	Description
dc6d9469e	fix	remove lazy imports in node tasks

@​angular/build

Commit	Type	Description
f8a1939fd	fix	add filename truncation to test discovery
86dd3297f	fix	allow overriding Vitest coverage reportsDirectory option

v21.0.1

Compare Source

@​angular/cli

Commit	Type	Description
363496ae0	fix	ensure dependencies are resolved correctly for node modules directory check

@​schematics/angular

Commit	Type	Description
2f58705cb	fix	add missing imports for lifecycle hooks in jasmine-vitest migration
c973bb9ca	fix	add mock names to createSpyObj transformation
4534c9848	fix	do not set esModuleInterop and moduleResolution when module is preserve
16d898e75	fix	fix migration of jasmine.clock().mockDate()
21c3eac72	fix	handle createSpyObj without base name on refactor-jasmine-vitest
b8c99aa4c	fix	improve safety of done callback transformation
4a71e06fc	fix	silently skip when the build target already uses one of the new builders
2ffdae421	fix	support testRunner option in library schematic
145de4a58	fix	warn about loose matching in arrayWithExactContents

@​angular/build

Commit	Type	Description
d097df2d7	fix	correct Vitest coverage path resolution for JSDOM on Windows
cdb607ada	fix	correctly configure per-browser headless mode in Vitest runner
244931ece	fix	correctly invoke isTTY as a function
54d542738	fix	ensure correct URL joining for prerender routes
a28b38bbe	fix	force dev-server to use HTTP/1.1 when using SSR with SSL
59ff867f0	fix	normalize --include paths to posix

@​angular/ssr

Commit	Type	Description
03e231216	fix	handle X-Forwarded-Prefix and APP_BASE_HREF in redirects
3cac01882	fix	prevent redirect loop with encoded query parameters

v21.0.0

Compare Source

Breaking Changes

@​angular/cli

• The ng commands will no longer automatically detect and use cnpm as the package manager. As an alternative use the .npmrc file to ensure npm uses the cnpm registry.

@​angular/build

• • TypeScript versions older than 5.9 are no longer supported.
• The javascriptEnabled option for Less is no longer supported. Projects relying on inline JavaScript within Less files will need to refactor their stylesheets to remove this dependency.

@​schematics/angular

Commit	Type	Description
e417c89f9	feat	Add addTypeToClassName option to relevant schematics
ede5e52bc	feat	add include option to jasmine-to-vitest schematic
c119910f4	feat	add AGENTS.md support to ai-config schematic
d0d2a17b8	feat	add Jasmine spy API transformations to jasmine-to-vitest schematic
e7d955bed	feat	add matcher transformations to jasmine-to-vitest schematic
629f5cb18	feat	add misc transformations to jasmine-to-vitest schematic
4912f3990	feat	add Tailwind CSS option to application schematic and ng new
2a518016d	feat	Applications are zoneless by default
2ffc527b1	feat	configure Vitest for new projects and allow runner choice
58474ec7d	feat	introduce initial jasmine-to-vitest unit test refactor schematic
9f255f2b3	feat	set packageManager in package.json on new projects
4e6c94f21	feat	support different file name style guides in ng new
77741f5ee	fix	add 'update-typescript-lib' migration
f89750b27	fix	add addImports option to jasmine-vitest schematic
9dab5780a	fix	add fixture.whenStable in spec files when zoneless apps
8f0f6a5f1	fix	add migration to update moduleResolution to bundler
e8feba9ee	fix	add missing typeSeparator to main.ts.template file
515b09c4f	fix	add Vitest config generation and runner checks
0e83fe1a8	fix	add warnings and improve Karma config generation
b91fa31f2	fix	align Karma project generation with unified unit-test builder
c967a447c	fix	correct spacing in application spec tsconfig
00d941c43	fix	correct style guide paths for standalone components
e33e77d12	fix	flag '--file-name-style-guide=2016' - wrong import in main.ts
f35b9f331	fix	improve comment preservation in jasmine-to-vitest
6615fcf03	fix	issues in apps generated with '--file-name-style-guide=2016' flag
e304821d5	fix	make ai-config schematic non-destructive
512ad282a	fix	preserve blank lines in jasmine-to-vitest schematic
b524ba426	fix	remove empty i18n-extract target for new projects
8e6e0a293	fix	remove explicit flag for host bindings
afb4d3e37	fix	remove extra space before async in spec templates
b983ea8e5	fix	respect skip-install for tailwind schematic
54c4eae2a	fix	transform Jasmine type annotations in jasmine-to-vitest schematic
14c0a9bac	perf	optimize AST traversal utilities

@​angular/cli

Commit	Type	Description
[58d101d5e](https://redirect.g

---

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⚠ Artifact update problem

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♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

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The artifact failure details are included below:

File name: package-lock.json

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: yah@0.10.0
npm ERR! Found: @angular/compiler-cli@15.2.9
npm ERR! node_modules/@angular/compiler-cli
npm ERR!   dev @angular/compiler-cli@"15.2.9" 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@17.3.7
npm ERR! node_modules/@angular-devkit/build-angular
npm ERR!   dev @angular-devkit/build-angular@"17.3.7" 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 /tmp/renovate/cache/others/npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /tmp/renovate/cache/others/npm/_logs/2024-05-08T14_34_20_834Z-debug-0.log

[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: package-lock.json

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: yah@0.10.0
npm ERR! Found: @angular/compiler-cli@15.2.9
npm ERR! node_modules/@angular/compiler-cli
npm ERR!   dev @angular/compiler-cli@"15.2.9" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer @angular/compiler-cli@"^21.0.0" from @angular-devkit/build-angular@21.2.3
npm ERR! node_modules/@angular-devkit/build-angular
npm ERR!   dev @angular-devkit/build-angular@"21.2.3" 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/2026-03-18T20_49_30_623Z-debug-0.log