Worked on enhancing the jeejeelee/vllm repository by delivering a focused documentation update that clarified the availability and version requirements for the VLLM_USE_FASTOKENS feature. Applied technical writing and documentation skills to specify that this feature is supported starting from vLLM v0.23.0, providing explicit upgrade guidance for users encountering configuration issues. The update aimed to reduce misconfigurations, streamline developer onboarding, and lower support demands by aligning documentation with current software versions. This work improved maintainability and trust for downstream developers, leveraging Markdown and version control practices to ensure clear communication of feature availability and integration requirements within the project.