Last modified: 2014-08-28 19:33:55 UTC
I can imagine some users will have little need for the beta/alpha mode. It does things such as enable anonymous editing which they might not like.
Prioritization and scheduling of this bug is tracked on Trello card https://trello.com/c/Ty5JaCqx
Change 155814 had a related patch set uploaded by MaxSem: Allow third parties to disable beta and alpha https://gerrit.wikimedia.org/r/155814
Change 155814 merged by jenkins-bot: Add a configuration setting to disable beta and alpha https://gerrit.wikimedia.org/r/155814