This card tracks a proposal that's currently part of the Community Wishlist Survey: https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey
The Wishlist Survey voting phase lasts until Dec 14th. After the voting has concluded, the top proposals will form the backlog for the Community Tech team to investigate and address.
See also T113004: Make it easy to fork, branch, and merge pages (or more), which may overlap/duplicate.
Add ability to create own branch of page and ability to merge that version into main history (main branch). This would help to avoid most of edit wars and make comparing of different versions easier.
--AS (talk) 10:13, 27 May 2015 (UTC)