update restored missing x11 devices in libgs (and thus fixed breakage of programs linked with library that displayed on desktop)
looks good on RPi4 / 4GB.
No video with Raspberry 4 (same with 5.19.15). (was OK with 5.19.14)
Looks good Intel(R) Core(TM) i7-6700 CPU
Looking good on Intel i7-6700 system with Nvidia driver (akmod) and on Intel i5-7500 with Intel 630 graphics. 5.12 fixes a serious lockup issue that occurs in 5.11 with a specialty system copies to more than 20 flash drives simultaneously.
Can also report that the bug introduced in 5.8.8 breaking libparted is fied.