Together with CAS-6 there is also the Brazilian Cubesat FloripaSat 1 to be launched on 2019-12-20 at 03:21 UTC with a CZ-4B rocket from Taiyuan Space Center.
FloripaSAT-1 has a Digpeater on-board with NGHam / AX.25 protocol.
Info on FloripaSat 1:
Amateur radio info:
(thanks to Nico PA0DLO for Information)
Software for Linux (including source code) can be downloaded here: https://github.com/floripasat/grs/wiki