I have seen people saying that 7105 and 7106 of Windows 7 are RC builds and the RC will be > 7100. Well all I can say to those people is that you’re wrong. Basically, after build 7076 the tree was split. 7077 was compiled as an RC ESCROW build (winmain_win7rc) and the winmain lab bumped its build number up to 7105. 7077 and on are code frozen, meaning no feature changes will occur in that branch (the RC branch. This allows them to work out the bugs to deliver a high quality RC release. “7105 or higher are NOT RC builds, but rather winmain builds pushing towards RTM. 7077, 7078, 7079, 7080 etc… are all RC ESCROW builds. When the RC has passed testing, they will compile the final RC build as 7100,” explained Chris.