PC Engines has send me a free sample of the APU2C4 for testing.
I have tested and found some missing drivers and bugs in the IPFire kernel wich i have added/fixed now.
Users that use the 32bit version can simply update the kernel to 3.14.65-67 via pakfire.
64bit users have to reinstall core100 by changing /opt/pakfire/db/core/mine back to 99 and restart the update process.