Send as a reply to https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/BNKJARHTTLU7VIW7UTT3MCHBNDMTU5IU/
This is a reminder of the upcoming Codex v2.0.0-rc.1 release scheduled for 29 April 2025, which will ride the train the week of 5 May 2025. This first release candidate will include all known breaking changes. Assuming know major issues are discovered, v2.0.0 will be released on 13 May 2025 and ride the train the week of 19 May 2025.
Breaking Changes
Developers using Codex are encouraged to check for breaking changes documented at https://www.mediawiki.org/wiki/Codex/Release_Timeline/2.0#Breaking_changes to avoid compatibility issues. Phabricator tasks have already been filed for known areas that need to be updated based on codesearch but this may not be comprehensive.
Visual Changes
With the exception of some interfaces in MonoBook detailed at https://www.mediawiki.org/wiki/Codex/Release_Timeline/2.0#Visual_changes, readers and editors should not experience any major visual changes as part of this release.
Codex components and interfaces that use Codex design tokens may look slightly different but any changes should be either negligible or improvements. Some potentially noticeable visual changes include:
- Dialog titles have increased in size.
- Spacing between binary inputs within groups has reduced.
- Padding in non-inline Messages has reduced.
The changes to the typography scale will be visible to readers only once Codex font modes are incorporated into the font preferences features of Vector 2022, which will happen at a later time (tracked in T391891).
A complete picture of the testing effort prior to release is documented in T386298. Issues discovered in beta during testing post-release will be tracked in T392379 and issues discovered as part of the train deployment will be tracked in T392390.
[Sender's name], on behalf of the Design System Team