v0.2.0 release. Not suggested for general use, and is of alpha/ path finder quality. Some of the improvements over v0.1.0 release:

• Improved board and architecture support
• Add support for multiple motor channels
• Improved microstepping support
• Numerous bug fixes

For the most part, v0.2.0 and v0.1.0 are protocol compatible with v0.2.0 strictly adding features. Starting with v0.3.0, compatibility will be broken to continue the drive towards high quality and cost effective servo control.