**Potentially Breaking Release** This release has updated the error types returned if an I2C, SPI, or UART bus isn't available from busio. It has changed from **NotImplementedError** to **ValueError**. If you have code that relies on that, it will need to be updated.
2.6.1
It now always passes on this error.
2.6.0
Added a `frequency` property to SPI.
2.5.3
SPI Fix for Orange Pi Zero and Orange Pi R1 when no CS pin is defined.
2.5.2
we have to specify duplex or it will not do what we want
2.5.1
* Chunkify FT232H SPI writes to deal with internal write size limit.