All deprecated methods that may have been removed in 2.10.7 and broke a ton of hooks to other plugins are restored with a set time of removal at 2.13.0. This should provide enough time for these hooks to update.
PlaceholderExpansion#register() is no longer deprecated
Registering placeholders must be done through PlaceholderExpansion#register(). Any plugins or expansions that register through PlaceholderAPI#registerPlaceholderHook() will fail gracefully, encouraging the end user to nag the developer to update.
maven repository artifactid is restored to lowercase as it has always been.
Command text has been reformatted a bit and also include missing help commands.
ChatColor is now parsed when placeholders are parsed again.
/papi dump will now provide some good debugging information to provide to HelpChat if you have issues.
There are quite a few other small changes that might not affect anyone but if you are interested you can check them out in the
commit history.