vLLM v0.21.0 Deprecates Transformers v4, Requires C++20 Build

Core summary

One sentence to understand this update

vLLM v0.21.0, featuring 367 commits from 202 contributors, formally deprecates Transformers v4 support, requiring users to migrate to Transformers v5 and utilize C++20 for building.

Impact & opportunity

What this could mean

Developers using vLLM should update their dependencies to Transformers v5 and ensure their build environment supports C++20 to maintain compatibility and leverage the latest performance improvements.