Reduce CUDA build matrix, better fallback for lib loading - #1980
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matthewdouglas merged 1 commit intoJun 22, 2026
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This was referenced Jul 16, 2026
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Resolves #1778
Instead of failing when the exact CUDA/ROCm library version isn't packaged, bitsandbytes now selects the closest available version within the same major and logs a warning. Also fixes ROCm double-digit minor version parsing (e.g. for ROCm 7.13), reduces the CUDA build matrix to the most commonly deployed builds (i.e. those with official PyTorch wheels), and cleans up related diagnostics and error messaging.
This also reduces our wheel size. It is more relevant now after the recent addition of #1949 increased the binary sizes, but in fact brings our wheel much below v0.49.2 release as well.