Update UPGRADE.md
Update UPGRADE.md
bankiru/Stash,csburton/Stash,bankiru/Stash,csburton/Stash,graphis/Stash,jaredtking/Stash,alawnchen/Stash,localheinz/Stash,localheinz/Stash,andrerom/Stash,tedious/Stash,theUniC/Stash,theUniC/Stash,andrerom/Stash,AndrewCarterUK/Stash,jaredtking/Stash,graphis/Stash,AndrewCarterUK/Stash,alawnchen/Stash,tedious/Stash