# LocalAI v4.2.0 — Release & Upgrade Intelligence
- **Product:** LocalAI (https://localai.io)
- **Version:** v4.2.0
- **Released:** May 11, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/localai/updates/v4.2.0/

## Executive Summary (TL;DR)
LocalAI v4.2.0. Source highlight: 🎉 LocalAI 4.2.0 Release! 🚀

## New Features
- **vLLM parity** with llama.cpp, same feature surface, same ergonomics
- **Speculative decoding** wired through for llama.cpp, **Gemma 4 thinking** support added
- **Agent nodes**, queue loops stop on teardown, dead-letter cap added
- feat(ui): Interactive model config editor with autocomplete
- feat: track files being staged
- feat: Add Kokoros backend

## Improvements
- **MLX backend** refactored, shared helpers and enhanced functionality

## Bug Fixes
- **Orchestrator resilience**, auto-upgrade routing, worker bind-wait, RAG-init crash, log-spam fixes
- **Cascading user deletion** on PostgreSQL, deleting a user removes all owned data
- **Importer** emits all shards for multi-part GGUF models
- **Open Responses** parses OpenAI-spec nested `tool_choice` and uses the correct setter
- **llama-cpp**: `server-chat.cpp` included in grpc-server TU, `common -> llama-common` rename, turboquant `common.h` detection
- **ik-llama-cpp**: adapted to `common_grammar` in `sampling.h`, patched `clip.cpp` for the new `ggml_quantize_chunk` signature