Genode OS Framework release 21.08

The current release revolves around a broad range of low-level topics with device drivers in the spotlight. It attacks the costs of porting drivers from the Linux kernel and takes a leap forward with respect to GPU support. This line of work brings framebuffer drivers for i.MX 8 and PinePhone, i.MX 8 SD-card driver, and Pine-A64-LTS networking driver. Genode 21.08 revives our GPU support with the architectural integration of low-complexity GPU multiplexing and an update to Mesa 21.

Beside GPU, We also worked on several topics that contribute to our vision of hosting video-conferencing scenarios natively on Genode: modular integration of LTE modem stack in Sculpt OS, Media playback and SSL validation for Qt5 and QtWebEngine with the Falkon browser, and VirtualBox update and improvements.

All improvements and changes are covered by the release documentation.