The core of yesterday's update was /copchase being extensively modified. With it, all cops'n'robbers (/cnr) stats and achievements were replaced with /copchase stats and achievements. Namely, arrests in /cnr with arrests in /copchase and robberies with escapes and the 200 arrests and robberies achievements with the 50 arrests and escapes achievements. This includes /stats in-game, the player profiles and the stats page on the website.
My suggestion is simple: restore the old /cnr stats and achievements, while also keeping the new /copchase stats and achievements.
I can think of several reasons to keep both stats. First of all, /cnr and /copchase are fundamentally different minigames. In /cnr, some players rob and others arrest them. For balanced gameplay, there should be more robbers than cops. In /copchase, one player drives and others catch that one player. For balanced gameplay, there should be only one runner and many cops. Also, several people played /cnr for hours on end specifically to get the 200 arrests and robberies achievements. Both for them and for more casual players, all /cnr stats have just vanished. As long as the minigame stays in the server, there is no reason to delete its stats.
My suggestion is simple: restore the old /cnr stats and achievements, while also keeping the new /copchase stats and achievements.
I can think of several reasons to keep both stats. First of all, /cnr and /copchase are fundamentally different minigames. In /cnr, some players rob and others arrest them. For balanced gameplay, there should be more robbers than cops. In /copchase, one player drives and others catch that one player. For balanced gameplay, there should be only one runner and many cops. Also, several people played /cnr for hours on end specifically to get the 200 arrests and robberies achievements. Both for them and for more casual players, all /cnr stats have just vanished. As long as the minigame stays in the server, there is no reason to delete its stats.