Eh, can't really remember the number, maybe around 3.5, in late 2008 or somewhen in 2009. It was the update that introduced new non-shaders visuals. I had a shitty laptop back then so playing with shaders was not an option if I wanted to have a stable FPS count. Felt like a decent step forward back then. No other change made such an impact for me. Things like ray tracing, revamped in-game shop, flames, 3D items, etc etc, all that other stuff, never lived up to my expectations, or, to phrase it differently, to my hopes for the deeper and more drastic changes of the game itself/its engine.
It may be nostalgia talking, but I have generally fond memories of updates from that time, coming with codenames, new colors, new packs, booster promotions and all that. I remember stacking as many 50tc booster as I could afford via mobile and playing hundreds of games, especially in judo, since it was so fast, to gain tc for a head texture first, then for a whole set, trails, better joints, better textures and so it went. Funny, I remember it took me maybe 4 months to reach 4th dan, then I switched to wushu and generally no grab mods so the progress slowed down. Still, it took me maybe a year to get to 10th dan, another one to get Master aaaand, with my enthusiasm for the game decreasing and life knocking on the door, another 4 years to get last 5k games for a custom.
Good times. Salute to all the guys that disappeared over the years, I'm sometimes wondering what they're up to nowadays.
Sorry for the blogpost, just suddenly felt like going down a memory lane a bit :^)