Things are just getting better. The 6.13 has a bit of changes, however most of them are not really related to RaptorCS or OpenPOWER hardware. Having said that it's welcoming to see changes related to Intel Xe3 (which is not yet working with non-x86 platform). I am hopeful in a year or two we might be able to run Intel Battlemages-GPU cards.
Source:
https://www.phoronix.com/news/Linux-6.13-Released