v1.23.0 v0.30.0

high risk

Osmantic/ODSSep 22, 2026 → Sep 22, 20260 days between releases

What's New

Major version jump introduces LLM inference engine replacing PDF text processing capabilities

Breaking Changes

  • Scale-out endpoints are opt-in via `--enable-scale-out`
  • `g_idx` parameter removed from GPTQ activation ordering
  • `all` Mamba cache mode deprecated
  • `python -m vllm.entrypoints.grpc_server` deprecated
  • YaRN aliases removed

New Features

  • New models: DeepSeek-V4.1-Flash, GLM-5.3-Flash, K2-Horizon, Cohere Compass
  • Fast Start IPC caching with persistent GPU weight-cache daemon
  • Model Runner V2 with FULL CUDA graphs and MTP speculative decoding
  • Watermarking with Gumbel-max generation and keyed PRF
  • HiSparse host-resident tier for sparse-MLA decode

Improvements

  • CUDA graph optimizations for performance
  • Dual-batch overlap in Model Runner V2
  • Persistent GPU weight-cache daemon for IPC loading
  • Async Engram prefetch with Engram DP sharding
  • MXFP8 support through FlashMLA V4.1

Upgrade Notes

Enable scale-out endpoints via the `--enable-scale-out` flag and remove references to deprecated `g_idx`, `all` Mamba cache mode, gRPC server, and YaRN aliases. Update weight loading scripts to use `--load-format ipc_cache` to leverage Fast Start caching.

The Two Releases

v1.23.0

1.23.0 — Text-layer repairs

Sep 22, 2026· 1 month ago

Enhances text-layer repairs to handle complex layouts, invisible text layers, and right-to-left text correctly.

Full release notes
v0.30.0

v0.30.0

Sep 22, 2026· 1 month ago

A major performance and feature release introducing new models, Fast Start caching, HiSparse support, and Model Runner V2 with advanced CUDA graph optimizations.

Full release notes