vllm-project/vllm v0.21.0

Key points

• This release features 367 commits from 202 contributors (49 new)!1
• C++20 build requirement: vLLM now requires a C++20-compatible compiler for compatibility with PyTorch (#40380).1
• New architectures: MiMo-V2.5 (#40967), Laguna XS.2 (#41129, #41880), Moondream3 (#32325), Qianfan-OCR (#40136), Cohere MoE (#40817), Cohere Eagle (#42078).1
• DeepSeek V4: AMD/ROCm support (#40871), pipeline parallelism (#41694), max reasoning effort (#40982), disaggregated serving fixes (#41957).1

Sources (1)

• [1]vllm-project/vllm v0.21.0
  GitHub: vllm-project/vllm · May 15, 08:44 AM

  * **Transformers v4 deprecated**: This release formally deprecates `transformers` v4 support (#40389).

  This release features 367 commits from 202 contributors (49 new)!

Extractive summary: sentences quoted from the sources.