The only major changes in the Trellis python library are the following:
- The Adafruit_Trellis and Adafruit_TrellisSet class begin() functions take both an I2C address and bus number, instead of just an address.
- The Adafruit_TrellisSet class can support any number of Trellises instead of being limited to only 8. Note that each I2C bus is still limited to only 8 Trellises, however by using multiple buses you can control any number of Trellises.
If you discover issues or want to contribute, please check out the library's github page.