SGLang 发布: v0.5.13

来源摘要

## Highlights **New Model Support**: - **Autoregressive**: [Nemotron 3 Ultra](https://docs.sglang.io/cookbook/autoregressive/NVIDIA/Nemotron3-Ultra) (Day-0, [blog](https://www.lmsys.org/blog/2026-06-04-nvidia-run-nemotron-3-ultra/)), [Step-3.7-Flash](https://docs.sglang.io/cookbook/autoregressive/StepFun/Step-3.7-Flash), Command A+ - **Diffusion**: [Cosmos3](https://docs.sglang.io/cookbook/diffusion/Cosmos/Cosmos3), [LingBot-World](https://docs.sglang.io/cookbook/diffusion/LingBot-World/LingBot-World), [SANA-WM](https://docs.sglang.io/cookbook/diffusion/SANA-WM/SANA-WM), [Ernie-Image](https://docs.sglang.io/cookbook/diffusion/Ernie-Image/Ernie-Image), [FLUX.2-Klein 4B/9B](https://docs.sglang.io/cookbook/diffusion/FLUX/FLUX), [Ideogram 4](https://docs.sglang.io/cookbook/diffusion/Ideogram/Ideogram4) **Spec V2 is now the default speculative-decoding path**: Tree drafting with topk > 1 is production-ready across the triton / FA3 / MLA / aiter backends, including `page_size > 1` and Mamba/hybrid-linear models ([#26997](https://github.com/sgl-project/sglang/pull/26997), [#26972](https://github.com/sgl-project/sglang/pull/26972), [#27463](https://github.com/sgl-project/sglang/pull/27463)). Spec V1 is deprecated, with EAGLE/MTP now running on the unified V2 worker ([#25464](https://github.com/sgl-project/sglang/pull/25464)), and topk = 1 drafting is faster ([#26397](https://github.com/sgl-project/sglang/pull/26397), [#26424](https://github.com/sgl-project/sglang/pull/26424)). **Lower per-step scheduler overhead**: Unified async value passing through FutureMap plus moving prefill input transfer onto the forward stream reduced per-step launch overhead and improved stability under high concurrency ([#25945](https://github.com/sgl-project/sglang/pull/25945), [#25879](https://githu