**User story**
As an engineer, I want aliases to have a dedicated and granular usage tracking key, especially in different languages (e.g., A.en, A.fr), so that alias changes are tracked per language and reduce irrelevant noise in the DB and watchlist.
**Background**
Alias changes are ~20% of all change propagation
Currently, they are all in the O usage, which can’t be scoped
Currently rated as an M ticket
How labels previously have been granularized .
https://phabricator.wikimedia.org/T172914
https://phabricator.wikimedia.org/T90436
**Acceptance Criteria**
[x] Implement alias usage tracking with A.<lang> keys
[x] Ensure that the languages in the tracking in client are correct. Making sure wbc_entity_usage table had the correct language.
[x] Ensure other usages still work as usual, except O aspect
[x] Ensure that alias updates no longer cause noise in unrelated languages’ watchlists
[x] Set up collapsing limit (probably 10) configuration for aliases.
[x] Remove aliases from Miscellaneous
[x] Set up translation https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/1177406
[x] Update docs in repo
[] Update this doc after merge https://www.mediawiki.org/wiki/Wikibase/Schema/wbc_entity_usage
[] Let community know that noisy alias notifications will disappear (there are related tickets but the exact one needs to be found to report)
**Success Metric**
~20% less changes are propagated.