From Git 2.5 (Q2 2015) a replacement for contrib/workdir/git-new-workdir was [http://stackoverflow.com/questions/6270193/multiple-working-directories-with-git/30185564#30185564 builtin] to git.
WARNING. Using the builtin 'git worktree' may not be supported by Eclipse (as at Dec 2017), see [https://bugs.eclipse.org/bugs/show_bug.cgi?id=477475 Bug 477475 - git 2.5 worktree support].
== Browse Git ==