This update should be compatible with worlds using version 1.7.1, and fixes some bugs as well as further aids in fixing some undesirable behaviors of the vanilla Ender Dragon.

Dragons:

• Dragon attacks that target players, and especially those that check for flying players, no longer target players in Spectator mode, and some don't target players in Creative mode that previously did.
• Increased the area and modified the location at which Dragons remove flowing water near them. This prevents the water from pushing the Dragon downward, which is behavior of the vanilla Ender Dragon that greatly impacts the fun and challenge introduced by the pack.

Rewards:

• Improved the performance of the Dragonsight enchantment. It now performs fewer checks, more optimally. It is still expected to cause some lag due to the number of entities, but the impact from actually scanning the area should be greatly reduced.