While there is already RadeonSI driver support for the Rust OpenCL 'Rusticl' implementation in Mesa since v23.1, merged now for Mesa 23.2 is experimental support for Rusticl with the older Radeon R600g for pre-GCN graphics cards.
The Virgl driver within Mesa for allowing open-source OpenGL support within virtualized environments in conjunction with the Virglrenderer is now capable of exposing OpenGL 4.6.
For those making use of the Radeon R600 Gallium3D driver within Mesa for supporting the Radeon HD 2000 series through the HD 6000 series (pre-GCN) graphics cards, Mesa 23.2 is finally ready to drop its TGSI code path for what was once the default intermediate representation (IR) used by Gallium3D drivers but in more recent years NIR has become the preferred IR format.