We use an ancient Mercurial version. We should upgrade. We should gain some speed by doing so.
Commit pushed to master at https://github.com/mozilla/pontoon https://github.com/mozilla/pontoon/commit/706a079897c5391a2ffe28b83b8a7df2890d23f6 Fix bug 1357425: Upgrade to latest Mercurial (#579)
Did this impact perf of vcs sync in a positive way? Or anything else?
It didn't have any noticeable impact on VCS sync perf.