User:Jdlrobson/T374499

Old markup

This is a warning message with old markup.

Currently:

This is a warning message with new markup.

Currently not supported by opt-in skins ( legacy Vector, Modern, Timelesswithout Category gadget loading Codex.) in article namespace.
- Supported in MediaWiki namespace for messages used in UI e.g. editor form.
Supported by Minerva
Supported by Vector 2022
In future, compatible will be compatible with any stable Codex that is created by https://phabricator.wikimedia.org/T363607
Consistent with other message boxes across the MediaWiki interface

At time of writing (17th September) the following pages are impacted.

JS / CSS - 48 pages
- This is officially supported.
- ACTION: can safely use the new markup in all skins with Codex module dependency.
Content - 276 pages
- MediaWiki namespace - 132 pages
  - This is officially supported.
  - ACTION: can safely use the new markup in all skins. For gadgets, you can add mediawiki.htmlform.codex.styles as a dependency to guarantee the styles are loaded in legacy skins
- Help - 10 pages
  - Consider using a screenshot. If not, follow recommendation for other.
- Other 134 pages
  - ACTION: Migrate to Codex markup or alternative template.
  - If using Codex, and needing support for opt-in skins (Vector,Timeless,Monobook) you will need to load the associated styles via a template gadget at time of writing via JavaScript (`page-with-codex[ResourceLoader|default|skins=timeless,monobook,vector|dependencies=mediawiki.htmlform.codex.styles]|`)
  - While legacy skins are not supported currently, we are considering alternative methods for loading the code in legacy skins and this markup will work in future.