---
id: pr-vllm-14244
repo: vllm-project/vllm
pr: 14244
title: '[Hardware] Update the flash attn tag to support Blackwell'
author: pavanimajety
date: '2025-03-06'
url: https://github.com/vllm-project/vllm/pull/14244
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: ed6ea06577ec06f0b3a9ac921b55ef254f19d923
inclusion_reason: kernel file changes
changed_paths:
- cmake/external_projects/vllm_flash_attn.cmake
- vllm/attention/backends/utils.py
head_ref_oid: f4903617079e1c7062a86230c805cf692562b7d4
artifact_dir: evidence/pull-bundles/vllm/gh-14244
---
# [Hardware] Update the flash attn tag to support Blackwell

- Repository: `vllm-project/vllm`
- PR: [14244](https://github.com/vllm-project/vllm/pull/14244)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `cmake/external_projects/vllm_flash_attn.cmake`
- `vllm/attention/backends/utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-14244`
