[Release]: Release checklist for v0.9.1rc2 on main

[Yikun]

Release Checklist

Release Version: v0.9.1rc2
Release Branch: main
Release Date: 0628
Release Manager: @Yikun

Prepare Release Note

• [v0.9.1rc2] FAQ / Feedback | 问题/反馈  #1487
• Write the release note PR: Bump version to v0.9.1rc2 #1488
  • Update the feedback issue link in docs/source/faqs.md
  • Add release note to docs/source/user_guide/release_notes.md
  • Update version info in docs/source/community/versioning_policy.md
  • Update contributor info in docs/source/community/contributors.md
  • Update package version in docs/conf.py

PR need Merge

• [PromptLogprobs][V1] Support prompt logprobs to fix ceval accuracy in V1 #1483
• [PERF]support MERRouter #1421
• [PERF]support H2P communication optimization for PanguProMoe #1463
• support pangumoe w8a8c8 and docs #1477
• [BugFix]Fix bugs when initializing communication groups with dp on 300I Duo #1478
• [Core] Fix block table shape to make Prefix cache work with Ascend scheduler #1446
• [CORE]initial support for torchair with non-mla backend #1506
• Fix W8A8 fused moe bug #1529
• [Bugfix] Support Qwen3-MOE on aclgraph mode #1381
• Fix wheel glibc version incompatibility #1582

Functional Test

• New model

  • Altlas A2 series 2025.06.21

    • Docker image E2E test
    • Performance
    • Accuracy
    • Doc Turtorial: Multi-NPU (XXXX 72B) @shen-shanshan

  • Altlas 300I DUO series @leo-pony

    • Docker image E2E test
    • Performance
    • Accuracy
    • Doc Turtorial: Multi-NPU (300I DUO)

  • Quantization @Angazenn

    • Performance
    • Accuracy

• Accuracy report (auto)

• Performance for Qwen2 / Qwen3 / Qwen2.5 VL

• DeepSeek test

Doc Test

• Tutorial is updated.
• User Guide is updated.
• Developer Guide is updated.

Prepare Artifacts

• Docker image is ready.
• Wheel package is ready.

Release Step

• Release note PR is merged.
• Post the release on GitHub release page.
• Generate official doc page on https://app.readthedocs.org/dashboard/
• Wait for the wheel package to be available on https://pypi.org/project/vllm-ascend
• Wait for the docker image to be available on https://quay.io/ascend/vllm-ascend
• Upload 310p wheel to Github release page
• Brodcast the release news (By message, blog , etc)
• Close this issue