Updating
If updating from 3.0.6.x, just copy this jar over the old one (after taking backups!). Otherwise, follow instructions for V3.0.6.

Reminder: Version 4.0 onwards will require Java 8.

Bug Fixes/Additions

• [Major] All players unless they are in creative mode have fly removed when they log out.
• [Exploit] Players can get unlimited TNT with a piston push glitch on 1.9.4 servers. Added option to config.yml (general.allowtntpushing). Disallow if you have this issue (set it to false).
• [Minor] Player could use Tab Complete such as /is invite <tab> to find out that vanished players existed (e.g. players that had done /vanish).
• [Minor] Console error occurs if chat prefixes are set to "" (nothing)
• [Minor] Setting island protection size to zero prevents players from doing anything on their island. This is actually correct behavior but some admins wanted zero to mean "no protection". Now if the protection size is set to zero, it will be set to the island distance size and a warning given in the console.
• Vietnamese locale added. To have it appear, rename/remove your locale folder so that it will be regenerated.