WRT to LHT framesets, rear dropouts changed to Breezer-style in 2008/9. Fork changed in 2012 to include bosses in fork crown. No other changes (that were made public knowledge) other than color since beginning of model production in 2002.

sage green=2002-2004

olive green=2008 Some of the olive green (darker color than the original sage green) have Breezer dropouts:

https://pedalrevolutionblog.files.wo...011/02/041.jpg

If your olive green LHT has breezer dropouts, then it's late production 2008, or 2009, since color runs didn't necessarily start/end with calendar years.