Bukkit

• /hr cancel [name] for cancelling a race
• clear arenas on server reload/shutdown
• /hr join command
• Java 1.6 support
• multiple rounds
• fix countdown bugs <-
• optionally announce winners
• Race statistics

Coming soon:

• arena cycling
• shop
• more bugfixes :P

If you find any bugs, please report them to me, I'll upload a hotfix as soon as possible. Have fun :)

• ModifyWorld throws errors when HorseRacingPlus sets a passenger on a horse.. Can't do anything here.