User blog comment:DShiv6Man/Client version at tournaments/@comment-6906412-20130715084150

The reason why the LCS players are a week or two behind in patch version compared to live is because when the new patches come out, they need time to practice to see what champions are stronger or weaker with buffs, nerfs, item changes, etc. so they can play their best during the LCS games. Depending on the impact of the patch changes, team comps and strategies have to be changed accordingly. The 3.8 jungle changes made a big difference, and so have the 3.9 champion buffs/nerfs. Next week, we will get to see what the LCS pros make of the Jayce nerf, the new Draven passive, the Oracle's changes, etc.