Maya
mGear 3 released – open source rigging framework for Maya
mGear is an open source rigging and animation framework for Maya that has been used in production by studios like Assembly, Triggerfish, Blur, Snowball and more. Version 3 adds a long list of new features which you can read in the official announcement including support for Maya 2019. You can see demos of mGear 3's new features in this Youtube Playlist