Mercurial is one of the distributed version control system.
It’s very useful when linkage Eclipse and VCS plugin, friendly to see diffs, histories.
But some issues to install MercurialEclipse.
as repository, you can only choose “CodeBeamer etc…”, MercurialEclipse doesn’t appear. (Currently 2015-05-25)
And I checked following article:
Set repository URL as
then MercurialEclipse appeared in list and could be installed.