New: implemented /aach generate command, which generates one advancement per achievement on Minecraft 1.12 servers, therefore integrating the achievement and advancement systems! Read the documentation for more information.
New: implemented additional Experience and IncreaseMaxHealth reward types.
New: added HideNoPermissionCategories parameter, to hide categories in /aach list when player does not have the relevant category permission.
Fix: categories with empty names specified in lang.yml are hidden in /aach list as they were prior to version 5.1.
Fix: /aach list now correctly uses the Message parameter once the achievement is received.
Fix: fixed value doubling in /aach stats after performing /aach reload.
Fix: various other fixes to support Minecraft 1.12.
Other: implemented new getPlayersTotalAchievements API method.
