# vLLM v0.1.5 — Release & Upgrade Intelligence
- **Product:** vLLM (https://vllm.ai)
- **Version:** v0.1.5
- **Released:** Sep 07, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/vllm/updates/v0.1.5/

## Executive Summary (TL;DR)
vLLM v0.1.5. Source highlight: Align beam search with `hf_model.generate`.

## New Features
- Add support for CodeLLaMA.
- Add many model correctness tests.
- Add support for CodeLlama
- Add tests for models

## Improvements
- Improve _prune_hidden_states micro-benchmark

## Bug Fixes
- Many other correctness fixes.
- [Fix] Fix a condition for ignored sequences
- fix: bug fix when penalties are negative
- [Docs] Minor fixes in supported models
- Fix README.md Link
- [BugFix] Fix NaN errors in paged attention kernel

## Upgrade Command
```bash
python -m pip install 'vllm==0.1.5'
```