Wrong version used in latest release.

[feanor12]

The released version 4.2.1 is actually version 4.2.0.
https://github.com/piface/pifacecommon/releases/tag/v4.2.1

[manasystemizer]

Can someone fix this? I think due to this issue the SPI frequency fix for newer kernel is not available from packages on RPI Model 3 B+. Without the fix pifacerelayplus board does not work out of the box on later RPis. It is annoying!

[tmortagne]

I confirm Pyface is unusable on Raspbian Stretch so a new release would really be great.

[psytester]

Accoring to issue #27 you should use Python's pip installer instaead of APT package system.
The newest releases are no longer included there.
BTW, on pip latest version is 4.2.2

Originally posted by @tompreston in #27 (comment)

Hi, I'm not in touch with the Raspbian maintainers any more. Please try getting in touch with them if you'd like to take on Raspbian maintainership for this package.

These days I prefer distributing Python packages via PyPI anyway, which contains the latest version of pifacecommon:
........
Please try using pip to install PiFace software instead. I will update the install instructions.