Commands the processing of commands has been improved (minor changes for server owners)
GUI added an external resource for handling materials (xseries) this adds support for older versions
Translations older versions (especially 1.8.x) created weird symbols in the translation files - non UTF-8 symbols will be removed on server startup (only 1.8!)
Expansions the placeholderapi extention did not work on some versions - this should be fixed.