"I've been wondering that lately. I've been using Subversion
for... well... what seems to be a lot of years now. Looking back at
the dates for Subversion's history and coinciding them with events
that were happening in my life, I'm guessing that I started using
Subversion no later than the end of 2003. (So, maybe
that’s not 'a lot of years now'...) And I was
using CVS from about 2001 until I started with Subversion. During
the majority of that time, I have been either the sole commiter of
the code base that I was working on, or one of very few people
working on the same code.
"Recently, I started a job where I'll likely be working more
mingled in with other developers on the same code at the same
time..."