**Acceptance criteria:**
[] Version v1.0 of `mul` language code is deployed to Test Wikidata (set to Full Release, set to Full Release (see T316767)
[] Version v1.0 of `mul` language code is deployed to Beta Wikidata (set to Limited Release, see T316767)
**Community communication:**
Who we needs to keep in the loop and in what way:
Who this could be interesting for and in what way:
Main messages:
* A new world id coming: xxx
* Current tools etc. should all continue to work without problems. Please let us know if you encounter any issues.
Communicate known issues:
* Search for `mul` will only work after reindexing Wikidata (see e.g. T312107)., Reindexing Wikidata takes some days.
* You can only add `mul` labels after you add `mul` to your babels for now. set to Limited Release (see T316767)