ver=2.01 rev=1
ver=2.10 rev=3
ver=3.00 rev=5
ver=3.20 rev=7
ver=3.30 rev=9
ver=3.41 rev=11
ver=3.40 rev=12
ver=3.51 rev=14
ver=3.52 rev=16
ver=3.50 rev=17
ver=3.60 rev=19
ver=3.70 rev=21
ver=3.80 rev=22