---
id: pr-vllm-28701
repo: vllm-project/vllm
pr: 28701
title: Upstreaming aiter triton attention backend as a new backend
author: maleksan85
date: '2025-11-19'
url: https://github.com/vllm-project/vllm/pull/28701
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: ac10fd3c6900228e3c0a8fae20d039668c132446
inclusion_reason: defer
changed_paths:
- vllm/attention/backends/registry.py
- vllm/platforms/rocm.py
- vllm/v1/attention/backends/mla/aiter_triton_mla.py
artifact_dir: evidence/pull-bundles/vllm/gh-28701
head_ref_oid: e98f7c65a37a6c82416e46c49446765dcb0b2e61
---
# Upstreaming aiter triton attention backend as a new backend

- Repository: `vllm-project/vllm`
- PR: [28701](https://github.com/vllm-project/vllm/pull/28701)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `vllm/attention/backends/registry.py`
- `vllm/platforms/rocm.py`
- `vllm/v1/attention/backends/mla/aiter_triton_mla.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-28701`
