2013. A bit late!
I’ve been tinkering on or about the Internet since when I was… well, younger :D cca 1995-1996. I remember the Linux kernel had not yet reached 1.0 when I was first introduced to it (or hmm, on second thought… considering the release dates, maybe it just didn’t make it all the way out here so fast :).
Somehow most of the stuff I’ve learned along the years seems to be pretty useless nowadays. Not a nice feeling!