# bitsandbytes 0.49.0-0.49.2 + CUDA 11.8-13.0 — Software interface version compatibility

For bitsandbytes 0.49.0-0.49.2 + CUDA 11.8-13.0, product is bitsandbytes; software version is 0.49.0-0.49.2; dependency version is CUDA 11.8.0-13.0.2; companion package versions is Python 3.10-3.14, recorded from its source on 2026-08-04.

- **Product:** bitsandbytes _(unconfirmed — we could not tie this to the quote below)_
- **Version pairing:** bitsandbytes 0.49.0-0.49.2 + CUDA 11.8-13.0 _(unconfirmed — we could not tie this to the quote below)_
- **Software version:** 0.49.0-0.49.2 _(unconfirmed — we could not tie this to the quote below)_
- **Dependency version:** CUDA 11.8.0-13.0.2 _(unconfirmed — we could not tie this to the quote below)_
- **Companion package versions:** Python 3.10-3.14 _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> Versions 0.49.0–0.49.2 support: CUDA 11.8.0, 12.0.1, 12.1.1, 12.2.2, 12.3.2, 12.4.1, 12.5.1, 12.6.3, 12.8.1, 12.9.1, 13.0.2

## Source

- https://medium.com/@vici0549/the-definitive-guide-to-pytorch-cuda-and-flash-attention-compatibility-ebec1161ec10

Last verified: 2026-08-04. Review by: 2026-10-03.
Part of [Software interface version compatibility](https://referencesource.org/software-interface-version-compatibility/).