Installing the Mercurial client under OSX

Recent OSX machines come with Subversion and Git clients preinstalled.

Type ...

  which hg 

...  to check if Mercurial is installed.

Go to ...

  http://mercurial.selenic.com/

... and click "Download now" if Mercurial isn't installed on your system.

The link above points to the official site.

The download link is prominently displayed and easy to find.