This update just addresses a few important bugs that were present in 2.1.7 release.
Changelog
Code (Text):
* (Bukkit) Fix possible crash when searching for safe teleport location in nether.
* (Bukkit) Fix entity placement protection.
* (Bukkit) Fix player interact protection due to caching issues.
* Fix '/ignoreclaims' not working properly.
* (Sponge) Always check item interact protection to support mods.
* Remove block-break access from sign-use flag definition.
* Remove animal spawns from blacklist.
Note: If you deny animal spawns in your world, you will need to open up blacklist.conf and remove the entity-spawn section which blacklists animals. This will allow GD to process animal spawns and deny when needed.