Bukkit

The default config file for version 0.4 looks like this:

File:
  DeleteOnDeath: true
Update:
  Check: true
  Notify: true

File: DeleteOnDeath: Whether or not a player's inventory file is deleted on death. Update: Check: Whether or not the updater checks for a new update. Notify: Whether or not the updater notifies players if a new update is available.

Set anything to false to disable it!