[Suicide Junkie]

1) All players submit turns using the old mod for game date 2402.5.
2) The host uses the NEW mod to process the turn from 2402.5 to 2402.6
3) The players use the new mod to play their turns for 2402.6

Nobody has to miss any turns or anything. As long as the new mod is similar to the old one, things will go smoothly.