There have been a couple of changes to Coop% and Coop All Checkpoints%

If a secondary player plays a role in a speedrun, he must have a screen recording (Speedruns Coop All Checkpoints% will be checked more carefully). Also, now the secondary player may play a not role in the speedrun, as long as the player is not AFK. Also, if you use plcc or LiveSplit timer, the exact time of the speedrun is shown for the player who jumped into the level ending sphere.

The timing rules have been changed to exclude loading times.

"Timing starts when you load into a level and ends when your character freezes after beating the level."

All (non-obsolete) runs have been retimed in accordance with the new rules (with the exception of runs with deleted video evidence). Runs where the new time is different have a Mod Message in the comments. The new rules allow runners to use plcc's timer mod from the Resources. However, using it isn't required.