Version control systems

[Eric]

A metacomment:

As a lurker, and a reader of other languages' mail groups, I just wanted to complement you GHC folks on the quality of your discussion.  You're discussing an issue that people clearly have strong opinions about, yet you've all remained polite and respectful and kept the signal-to-noise ratio of the discussion high, unlike what I see on some the mail groups of some other languages.

It's a pleasure reading even your disagreements.

--Eric