Update to angular 21 by shlomoa · Pull Request #531 · angular-split/angular-split · GitHub

Moved to angular 21 and ran over all stages properly including manual verification

Updated .gitignore with PLAN.md

- Update ngx-bootstrap to v21 - Update typescript-eslint - Migrate to inject() function (Angular 21) - Update peerDependencies in library

Update to angular 21

LGTM,
But I'm unsure if we are ready to move to V21?
@Harpush @Jefiozie, when you both are Ok, feel free to merge.

Pull request overview

Upgrades the workspace (demo app + angular-split library) to Angular 21, aligning build tooling/config and refactoring DI usage to Angular’s inject() pattern.

Changes:

Upgrade Angular/tooling dependencies and switch Angular builders to @angular/build.
Update TS config to moduleResolution: "bundler" and refactor components/services to use inject().
Update library peer dependencies to Angular >=21 and adjust CI Node matrix.

Reviewed changes

Copilot reviewed 16 out of 19 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
tsconfig.json	Switch module resolution to bundler and adjust compiler options formatting.
src/main.ts	Adds provideZoneChangeDetection() during app bootstrap.
src/app/ui/components/topbar.component.ts	Refactors DI from constructor injection to inject().
src/app/changelog/changelog.service.ts	Refactors DI to inject() while keeping service behavior.
src/app/changelog/changelog.component.ts	Refactors DI to inject() and keeps observable wiring.
src/app/app.component.ts	Refactors Router DI to inject() and keeps scroll-on-nav behavior.
projects/angular-split/tsconfig.lib.json	Switch library TS module resolution to bundler.
projects/angular-split/src/lib/split/split.component.ts	Adjusts DOCUMENT import source for library internals.
projects/angular-split/src/lib/split-custom-events-behavior.directive.ts	Adjusts DOCUMENT import source for directive internals.
projects/angular-split/package.json	Bumps Angular peer dependency floor to >=21.
package.json	Upgrades Angular/tooling deps, adds/adjusts wireit scripts, updates ngx-bootstrap version.
angular.json	Switches builders to @angular/build:* and adds schematic defaults.
CHANGELOG.md	Adds 21.0.0 release notes entry.
.gitignore	Adds PLAN.md to ignored files.
.github/workflows/tests.yml	Updates CI Node versions tested.
.github/workflows/lint.yml	Updates CI Node versions tested.
.github/workflows/build.yml	Updates CI Node versions tested.
.github/copilot-instructions.md	Adds repo-specific Copilot guidance document.

Comments suppressed due to low confidence (1)

package.json:174

lib_build no longer copies LICENSE/README into dist/angular-split, but ng-packagr config only lists _theme.css as an asset. This likely means the published package will miss LICENSE/README unless they are added to ng-package.json assets or the copy step is restored.

    "lib_build": {
      "command": "ng build angular-split",
      "files": [
        "projects/angular-split/"
      ],
      "output": [
        "dist/angular-split"
      ]

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@shlomoa Thanks for your PR.
Can you address the AI-nits, as it's not wrong ;)

We have still some stuff which are bot v20. For example:

The demo site is v19
The stackblitz is v19

I guess there are more places... Maybe we should align to v20 first and then move to v21 while applying those changes in v21 too?

Also the changelog still works weird I think.

@SanderElias @Jefiozie

…ular-split into update_to_angular_21

Sorry folks, first experience on a github project.

Committed fixes to the issues flagged by github copilot.
Validated as much as I could.

This is not critical for me, but I would like to see this completed successfully.
How can I help ?

@shlomoa, I restarted the Copilot review after your changes. It probably will find a couple of nits.
Then @Harpush mentioned we should also address the StackBlitz and the demo site, since they're still on v19.
And we should check whether those are really the last 2, or if we have older versions elsewhere too.

Perhaps it is a bit too much to address all of those in this same PR, and I think @Jefiozie has ownership of the StackBlitz to begin with?

Pull request overview

Copilot reviewed 25 out of 28 changed files in this pull request and generated 2 comments.

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And I just noticed there are merge conflicts; These should be addressed anyhow.
@shlomoa, can you please merge the upstream changes into your PR?

# Conflicts: # package-lock.json # package.json # projects/angular-split/tsconfig.lib.json # src/app/app.component.ts # src/app/changelog/changelog.component.ts # tsconfig.json

@copilot @SanderElias @Jefiozie
Cleaned fixed and tested

Any updates?

We were so close, any news?

shlomoa and others added 14 commits February 9, 2026 11:51

added copilot instructions

2124b4c

Updated .gitignore with PLAN.md

build: restore dependencies (npm install)

0df4960

build(deps): update Angular Core and CLI to v20

47e87ed

build(deps): update angular-eslint packages to v20

8280721

build(deps): update ngx-bootstrap to v20

d2f904a

build: update to Angular 20 and fix build scripts

9d52b5c

build: update to Angular 21

7d9bd0d

build: finalize Angular 21 update

91fdd3a

- Update ngx-bootstrap to v21 - Update typescript-eslint - Migrate to inject() function (Angular 21) - Update peerDependencies in library

docs: update CHANGELOG for Angular 21 update

6984d24

ci: update node versions for Angular 21

06022b1

Merge pull request #1 from shlomoa/update_to_angular_21

e5f1d20

Update to angular 21

build: update supported node versions to 24

05f9ed2

build: additional updates (to be stashed in rebase)

2544c03

Merge branch 'main' into update_to_angular_21

54048ac

SanderElias requested review from Jefiozie and Copilot February 16, 2026 13:32

Copilot started reviewing on behalf of SanderElias February 16, 2026 13:32 View session

SanderElias approved these changes Feb 16, 2026

View reviewed changes

Copilot AI reviewed Feb 16, 2026

View reviewed changes

SanderElias added 2 commits February 17, 2026 16:44

Merge branch 'main' into update_to_angular_21

1c428b2

Merge branch 'main' into update_to_angular_21

01df0d3

shlomoa added 5 commits February 22, 2026 13:23

fix(packaging): fixed issues flaged by github AI agent

f945a47

Merge branch 'update_to_angular_21' of https://github.com/shlomoa/ang…

a205db9

…ular-split into update_to_angular_21

fix(build): fixed all AI requirements

3910106

fix: enabled cleaner install

99d4cb6

fix: updated several package versions

bc13682

SanderElias requested a review from Copilot February 24, 2026 10:29

Copilot started reviewing on behalf of SanderElias February 24, 2026 10:30 View session

Copilot AI reviewed Feb 24, 2026

View reviewed changes

Comment thread src/app/changelog/changelog.service.ts

Comment thread projects/angular-split/tsconfig.lib.json Outdated

shlomoa added 4 commits April 20, 2026 13:04

Merge branch 'main' into pr/shlomoa/531

19150c7

# Conflicts: # package-lock.json # package.json # projects/angular-split/tsconfig.lib.json # src/app/app.component.ts # src/app/changelog/changelog.component.ts # tsconfig.json

fix: updated configuration files

04bf5df

fix: handle async marked.parse result

7b02025

fix: fixed strict linting issues

a310dd9

This was referenced Aug 18, 2026

build: update to angular 22 #538

Open

Call for Maintainers: Keeping angular-split future-proof #537

Open

Update to angular 21 by shlomoa · Pull Request #531 · angular-split/angular-split · GitHub

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Update to angular 21 - #531

Update to angular 21#531shlomoa wants to merge 25 commits intoangular-split:mainangular-split/angular-split:mainfrom shlomoa:update_to_angular_21shlomoa/angular-split:update_to_angular_21Copy head branch name to clipboard

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Update to angular 21#531
shlomoa wants to merge 25 commits into
angular-split:mainfrom
shlomoa:update_to_angular_21

Harpush commented Feb 20, 2026 •
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shlomoa commented Apr 20, 2026 •
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