The R6 server update for Battlefield 4 servers was rolled out early this morning. This update serves just one purpose and that is to "fix the most common server crash."
UPDATE #3 (Nov 4):
Fixing server crashes
New server update (R6) was rolled out across all platforms to fix the most common server crash.

See? I told you.

Feel free to report back on if you're still experiencing a ton of crashes after playing on some updated servers today. Not that we have any power here to fix it, but it's nice to hear from you once in a while.