RHEL6 shipped yesterday. This is the first RHEL release I've seen all the way through from inception to release, and it's definitely been an interesting (and mostly enjoyable!) experience.
I got curious about what exactly I'd been doing in that time:
synephrine:~/xserver% git log -p --author=ajax xorg-server-1.1.1..xorg-server-1.7.7 | diffstat | tail -1
3402 files changed, 55908 insertions(+), 307854 deletions(-)
Not a bad start.