v1.7:

• Optimized the way individual playtimes are synced.
• Optimized the way toplist is synced when there are multiple instances of PlaytimeLink requesting it.
• Added support for executing commands when players reach specific playtime milestones. --Support for executing them on the bukkit servers will come later.
• Some other smaller fixes.

v1.7.5:

• Playtime syncing will now be handled properly when multiple servers are requesting it at the same time, fixing multiple bugs.
• Reduced unnecessary traffic between the proxy and bukkit servers by changing the way the two plugins communicate.