Upgrade to Angular 22 (or 21)

[tdonohue]

Description

Angular 22 is now available (as of June 2026), so we should upgrade our User Interface (currently running Angular 20) to the latest version. If an upgrade to Angular 22 is complicated, then we should minimally upgrade to Angular 21 (released in Nov 2025)

As part of the upgrade, we should also investigate whether it's easy to backport any Angular upgrade to DSpace 10.x and/or 9.x. For the Angular 20 upgrade in DSpace 10.0, we found the upgrade could be backported to 9.x. This may not always be possible, but it's worth keeping in mind.

Resources:

• Angular update guide: https://angular.dev/update-guide
• https://blog.angular.dev/announcing-angular-v22-c52bb83a4664
• https://blog.angular.dev/announcing-angular-v21-57946c34f14b
• Our prior upgrade to 20.0: Angular 20 upgrade #4804

Tentatively scheduling for 11.0, but this needs a volunteer to investigate the complexity of this upgrade.

Related work

• Updating our Node/NPM requirements (as noted in Update Node and NPM requirements for DSpace 11 #6245) may require an upgrade to Angular 22 as it's the first release that supports Node.js v26 per the version compatibility docs at https://angular.dev/reference/versions

[alexandrevryghem]

@tdonohue: Atmire would like to claim this issue

[tdonohue]

Thanks @alexandrevryghem for volunteering for this alongside the semi-related tickets #4784 and #6173 . I've assigned all three to you, but feel free to delegate to others on your team as necessary.