V126.96.36.199 fixes a problem detecting the sleep period of the ISS crew for May 22, 2011. V188.8.131.52 is required download for STS-134, Endeavour's final missoin scheduled for a May 16th, 2011 launch. There are three different sleep schedules for this mission, Endeavour's crew, International Space Station Crew, and Expedition 27/28 crew member, Ron Garan. Changes were made to recognize the three different sleep schedules.
Mission Schedules have the full set NASA's Space Shuttle Mission schedules from rev0 to however many the mission requires. Missions in this zip file are: STS-119, STS-122, STS-123, STS-124, STS-125, STS-126, STS-127, STS-128, STS-129, STS-130, STS-131, STS-132, STS-133, STS-134, and STS-135.