Bukkit

Version 3.1.0:

/Changed TPS estimation code
+Added: "use-internal-tps" option (true by default) to use Spigot's accurate internal TPS instead of estimating
+Added: "Free Memory:" display to /lagg check. It'll show the current free memory in the heap
+Added: "Uptime" display to /lagg check.
+Added: "onGround" flag for entities listed inside the config
+Added: 'hasMeta="myMeta"' flag for entities listed inside the config
/Recoded config updater, fixed all the issues it had
+Added: Config will now be automatically REPAIRED if it fails to load due to syntax errors (Can't repair all error types)
+Added: Configurable Broadcast handling. Disable, or set a permission for broadcasting (In config)

Dropped Java 7 support in favor of Java 8