Mesa 26.0.0 Release Candidate 3 has been released, featuring driver-level fixes like improved BVH handling in radv and internal AV1 tile calculations in ANV, while enhancing compatibility with LLVM-22. Users have reported "device lost" crashes on older AMD GPUs, which the new patches aim to resolve, although software rasterizer builds may still encounter shader compilation errors. To test the release candidate without affecting existing Mesa packages, users can build it in a separate directory and install it under a user-local prefix. While developers and users with newer AMD GPUs may benefit from the RC, most everyday users—particularly those with older hardware—are advised to stick with the stable 25.x branch for now
Mesa 26.0.0 Release Candidate 3 released
Mesa 26.0.0‑rc3 adds driver‑level fixes—most notably tighter BVH handling in radv and internal AV1 tile calculations in ANV—while polishing LLVM‑22 compatibility across the stack. Early testers have already spotted “device lost” crashes on older AMD GPUs, which the new BVH patches aim to eliminate, but software rasterizer builds with LLVM‑22 can still hit shader compilation errors. Building the candidate in a separate directory and installing it under a user‑local prefix lets you trial the changes without overwriting your system Mesa packages.
