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@Gaohan123 Gaohan123 released this 28 Jul 01:57
v0.26.0rc1
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Highlights

This release candidate features 145 merged pull requests from 71 contributors, including 21 new contributors.

vLLM-Omni v0.26.0rc1 aligns the project with the vLLM 0.26 release line and delivers major improvements across streaming and realtime multimodal serving, diffusion and world-model execution, TTS performance, model coverage, quantization, hardware acceleration, runtime architecture, and CI infrastructure.

This release introduces a full-duplex realtime runtime with a MiniCPM-o 4.5 demo, midway prompt updates for streaming video generation, and session-state infrastructure for autoregressive diffusion world models. It expands model support with Cosmos3 Edge and Distilled checkpoints, LingBot Video, Boogu Image, MammothModa2-Dev, MOSS-TTS-Local v1.5, and broader MiniCPM-o 4.5 integration. It also adds new diffusion parallelism, offloading, attention, compilation, and caching capabilities while substantially improving Ming-TTS, Qwen3-TTS, MOSS-TTS, Qwen3-Omni, and MiniCPM-o performance and correctness.

Key Improvements

  • Aligned with the vLLM 0.26 release line, including the vLLM 0.26.0 rebase and compatibility updates across XPU, NPU, CUDA, ROCm, diffusion FusedMoE, deployment configuration, and CI images. (#5443, #5066, #5115, #5167)
  • Introduced full-duplex and interactive streaming capabilities, adding a full-duplex realtime runtime, a MiniCPM-o 4.5 demo, midway prompt updates for streaming video generation, and improved realtime session lifecycle handling. (#3907, #4652, #5383, #5388)
  • Expanded diffusion and world-model support, adding Cosmos3 Edge and Distilled checkpoints, LingBot Video dense and MoE variants, Boogu Image, MammothModa2-Dev, and session-state infrastructure for autoregressive diffusion world models. (#5001, #5035, #4995, #5411, #4487)
  • Improved diffusion performance and scalability, adding CFG parallelism for FLUX Kontext, VAE patch parallelism and layerwise CPU offload for FLUX.2-dev, AllGather-KV sequence-parallel attention, TensorRT-LLM diffusion attention, configurable compile granularity, and Cache-DiT support. (#2281, #5292, #5256, #4968, #5283, #4603, #4205)
  • Accelerated TTS streaming and generation, reducing Ming-TTS time to first packet, optimizing its Stage-0 flow head and speaker caching, improving Qwen3-TTS compilation and chunk scheduling, and enabling CUDA Graph execution for MOSS-TTS-Local v1.5. (#5011, #4942, #5240, #5351, #5107, #5152, #5197)
  • Strengthened multimodal and speech correctness, fixing Qwen3-Omni speaker metadata and audio-video cache behavior, MiniCPM-o audio output and placeholder handling, realtime connector flushing, audio format propagation, and per-request speech-code routing. (#5086, #5308, #5116, #5455, #5414, #4718, #5070)
  • Expanded quantization capabilities, adding BitsAndBytes W4 for diffusion transformers, Transformer Engine FP8 for FLUX.2-dev Mistral, Cosmos3 ModelOpt FP8 loading, NVFP4 scale remapping, and HSDP packed-parameter support. (#5037, #5136, #5076, #5087, #5088)
  • Modernized core runtime and pipeline architecture, migrating legacy stage configurations to the pipeline registry, moving diffusion outputs to payload metadata, cleaning up diffusion executor, scheduler, worker, and model-runner interfaces, and consolidating connector and metrics infrastructure. (#5031, #4922, #4980, #5215, #5216, #5217, #5218, #5096, #5168)

Core Architecture & Runtime

  • Rebasing the project onto vLLM 0.26.0 aligned the runtime with the latest vLLM release line. (#5443)
  • Added a session-state manager for autoregressive diffusion world models, establishing the first phase of persistent world-model sessions. (#4487)
  • Generalized autoregressive diffusion KV-session capabilities and added support for prefetched KV jobs in the model runner. (#5271, #4941)
  • Added the full-duplex realtime runtime and a MiniCPM-o 4.5 demonstration application. (#3907)
  • Migrated legacy stage configurations to the pipeline registry and made stage metadata available through VllmOmniConfig. (#5031, #5343)
  • Updated configuration construction to return VllmOmniConfig and fixed missing sequence_parallel_size values in generated deployment configurations. (#4818, #5449)
  • Refactored diffusion outputs around payload metadata and moved multimodal payload accumulation into MultimodalPayload. (#4922, #4980)
  • Refactored diffusion output streaming and cleaned up executor, scheduler, worker, and model-runner interfaces. (#5166, #5215, #5216, #5217, #5218)
  • Cleaned up Omni connector runtime and transfer backends and fixed terminal async-chunk processor flushing. (#5096, #5414)
  • Centralized metrics helpers and split the benchmark serving CLI into more focused modules. (#5168, #5206)
  • Removed obsolete scheduler, diffusion-hook, model-loader, configuration, and example code. (#5312, #5270, #5199, #5201, #5335)

Model Support

  • Added support for Cosmos3 Edge and Cosmos3 Distilled checkpoints, together with an Edge deployment recipe and updated scheduler behavior. (#5001, #5313, #5176)
  • Added dense and MoE support for LingBot Video. (#5035)
  • Added support for Boogu Image 0.1 Base and Boogu Image 0.1 Edit. (#4995)
  • Added support for MammothModa2-Dev and migrated its examples to the shared x_to_text.py interface. (#5411, #5454)
  • Added support for the MOSS-TTS-Local v1.5 vocoder graph. (#4929)
  • Expanded MiniCPM-o 4.5 support with offline and online examples, end-to-end tests, Ascend NPU talker and vocoder support, and multiple memory and performance optimizations. (#5222, #5237, #5117, #5130, #5188, #5228, #5447)
  • Added Fish Speech TTS inference support on XPU. (#4856)
  • Added a Cosmos3 Nano recipe for Ascend NPU hardware. (#4978)
  • Fixed SoulX-Singer pipeline registration and several remote-code loading paths. (#5210, #5006, #5213)
  • Fixed Ming processor registration with Transformers 5.x and newer. (#5243)

Audio, Speech & TTS Serving

  • Reduced Ming-TTS streaming time to first packet by emitting an initial latent chunk earlier. (#5011)
  • Accelerated the Ming-TTS Stage-0 flow head with fused RoPE and QKV operations, optional torch.compile, and piecewise CUDA Graph execution. (#4942)
  • Added speaker-embedding caching for uploaded Ming-TTS reference audio and moved speaker extraction and caching into Stage 0. (#5240, #5351)
  • Improved Qwen3-TTS performance by caching decoder masks and compiling the pre-transformer path. (#5107)
  • Added configurable Qwen3-TTS codec chunk ramp-up for smoother streaming startup. (#5152)
  • Added mode-aware reference-audio artifact readiness for Qwen3-TTS. (#5157)
  • Refactored MOSS-TTS-Local v1.5 talker execution for CUDA Graph compatibility and added a single-80GB deployment configuration. (#5197, #4761)
  • Fixed Qwen3-Omni speaker metadata during non-async handoff and restored audio output for MiniCPM-o when async chunking is disabled. (#5086, #5455)
  • Fixed MiniCPM-o 4.5 audio placeholder pooling, Hugging Face cache-path resolution, and single-GPU startup memory usage. (#5116, #5301, #5447)
  • Fixed request-local speech-code routing for MiMo Audio under continuous batching. (#5070)
  • Propagated Higgs Audio V3 sampling parameters to the sampler and adjusted an overly strict Higgs Audio V2 streaming quality threshold. (#5406, #5232)
  • Kept the HiFT vocoder on Ascend NPU instead of unnecessarily transferring it to the CPU. (#5242)
  • Fixed audio output format handling in chat completions. (#4718)

Diffusion, Image & Video Generation

  • Added CFG parallel execution for FLUX.1-Kontext-dev. (#2281)
  • Added Cache-DiT support for FLUX.1-Kontext-dev and began reorganizing diffusion cache integrations. (#4205, #5226)
  • Added FLUX.2-dev layerwise CPU offloading and VAE patch parallelism. (#5256, #5292)
  • Added AllGather-KV sequence-parallel attention and a TensorRT-LLM diffusion attention backend with Skip-Softmax support. (#4968, #5283)
  • Added configurable diffusion compilation granularity. (#4603)
  • Extended Cosmos3 CPU offloading to component-level and layerwise execution paths. (#4695)
  • Added Cosmos3 Edge and Distilled checkpoints and fixed configuration and scheduler compatibility for these models. (#5001, #5239, #5176)
  • Added dense and MoE variants of LingBot Video and support for Boogu Image Base and Edit models. (#5035, #4995)
  • Added midway prompt updates for streaming video generation. (#4652)
  • Added per-video audio masks for Qwen Omni. (#4656)
  • Fixed image CFG behavior in HunyuanImage and preserved image payloads when reasoning metadata is present. (#4752, #5238)
  • Fixed Helios Cholesky failures caused by non-positive-definite matrices and unavailable CPU LAPACK paths. (#4921)
  • Unified the LTX-2 and LTX-2.3 pipeline runtime. (#5147)
  • Migrated the replica data-parallel Wan2.2 example to deployment configuration and added a replica-DP video DiT recipe and benchmark. (#5267, #5052)

Quantization, Kernels & Performance

  • Added BitsAndBytes W4 online quantization for diffusion transformers. (#5037)
  • Added Transformer Engine online FP8 support for the FLUX.2-dev Mistral component. (#5136)
  • Fixed loading of ModelOpt FP8 Cosmos3 checkpoints and remapped ModelOpt NVFP4 scale tensors. (#5076, #5087)
  • Added support for packed quantized parameters with HSDP. (#5088)
  • Initialized component-level quantization state consistently. (#5103)
  • Fixed FP8 Quack GEMM execution under inference_mode() and torch.compile() and disabled it when required scale tensors are unavailable. (#5153, #5262)
  • Added configurable diffusion compile granularity and expanded diffusion performance configurations. (#4603, #5010)
  • Updated performance baselines using a seven-day average. (#5231)

Serving, Frontend & API Behavior

  • Added a full-duplex realtime serving runtime and removed the frontend restriction that prevented realtime use without async chunks. (#3907, #5383)
  • Prevented disconnected realtime sessions from continuing to cycle through pipeline stages. (#5388)
  • Added midway prompt updates for streaming video-generation requests. (#4652)
  • Fixed async-streaming segment-stop accounting and ensured connector processors flush their final output on terminal sends. (#5183, #5414)
  • Changed unsupported output modalities to return an explicit error instead of an empty choices array. (#4720)
  • Fixed the audio.format parameter being silently ignored by chat completions. (#4718)
  • Parsed VLLM_USE_MODELSCOPE through the standard vLLM environment configuration. (#5428)
  • Cleaned up speech serving model validation by moving it into adapters. (#4833)
  • Skipped non-positive scheduled token spans in Omni stage runners. (#5269)
  • Coupled audio and video multimodal caches when use_audio_in_video is enabled. (#5308)

Hardware Support

  • Updated XPU support for the vLLM 0.25 compatibility line and fixed XPU memory-release and speculative-step failures. (#5066, #5330)
  • Added Fish Speech TTS inference support on XPU and migrated the Voxtral TTS XPU configuration to deployment configuration. (#4856, #5467)
  • Upgraded Ascend NPU CI images and added a Cosmos3 Nano recipe for A3 hardware. (#5095, #4978)
  • Optimized Qwen3-TTS for Ascend 310P and kept the HiFT vocoder resident on the NPU. (#4841, #5242)
  • Added Ascend NPU support for MiniCPM-o 4.5 talker and vocoder execution. (#5117)
  • Ported the Omni connector model-runner mixin to NPU runners, fixing full-payload hangs when async_chunk is disabled. (#5290)
  • Adapted HunyuanImage3 diffusion FusedMoE execution for newer vLLM versions. (#5167)
  • Upgraded CUDA and ROCm Docker base images for the vLLM 0.25 compatibility line. (#5115)

CI, Testing & Documentation

  • Added local CI job-runner scripts for L2–L4 pytest execution. (#4672)
  • Added JSON mark selection and paired parametrization for L4 performance tests, enabling more targeted NPU performance CI. (#5084)
  • Added nightly Ascend NPU performance testing for Qwen3-TTS on A3 hardware. (#5158)
  • Added pre-commit checks for missing pytest marks and improved local-model recognition in CI coverage checks. (#4953, #5275)
  • Reorganized Buildkite configuration by hardware platform and unified CI-skip targeting and mirrored-hardware presets. (#5119, #5254)
  • Optimized Docker caching and fixed editable-package discovery in containerized and Kubernetes CI environments. (#5133, #5341, #5368)
  • Tiered diffusion-offloader tests to reduce merge-queue GPU pressure. (#5185)
  • Added configuration-driven tiny-model builders and expanded MiniCPM-o 4.5 end-to-end testing. (#5090, #5237)
  • Fixed or stabilized HunyuanImage, FrameSimilarityFilter, Qwen-Image, LTX FP8, FLUX Kontext, and audio-in-video test coverage. (#5143, #4786, #5132, #5302, #5297, #5280)
  • Updated the README for v0.24.0, documented Cosmos3-Super AutoRound support, standardized serving names, and corrected Qwen3-Omni modality examples. (#5060, #5062, #5081, #5173)
  • Removed stale BAGEL documentation and refreshed the WeChat community QR code. (#5429, #5061, #5204, #5430)

What's Changed

  • [Perf][Ming-TTS] Add initial latent chunk for lower streaming TTFP by @LHXuuu in #5011
  • docs: update README for v0.24.0 by @hsliuustc0106 in #5060
  • docs: document Cosmos3-Super AutoRound world-model support by @yiliu30 in #5062
  • docs: update WeChat QR code by @david6666666 in #5061
  • [Perf] Ming-TTS Stage-0 flow-head speedup: RoPE/QKV fusion, opt-in torch.compile, PIECEWISE cudagraph by @ZhengWG in #4942
  • [XPU][CI] Fix xpu after rebasing for 0.25.0 by @xuechendi in #5066
  • [Bugfix] Pass --trust-remote-code via HunyuanImage3 DFX serve_args by @yenuo26 in #5006
  • Extend Cosmos3 CPU offloading to component and layerwise paths by @rahul-steiger-nv in #4695
  • [Doc] Standardize serving names and identifiers by @hsliuustc0106 in #5081
  • [Bugfix] Restore Qwen3-Omni speaker metadata during non-async handoff by @akshatvishu in #5086
  • [NPU] Upgrade CI IMAGE to v0.25.0 by @FayeSpica in #5095
  • [Quantization] Add BitsAndBytes W4 online quantization for diffusion transformer by @dpeng123 in #5037
  • [recipe] Add cosmos3-nano recipe for npu (1xA3) by @zhangj1an in #4978
  • [Bugfix] Accept kv_prefetch_jobs in ARDiffusionModelRunner.execute_model by @wjsuijlenh in #4941
  • [Bugfix][Quantization] Support packed parameters with HSDP by @pst2154 in #5088
  • [REFACT]Refactor diffusion outputs to payload metadata by @bjf-frz in #4922
  • [PERF][CI]Add Cosmos3 diffusion perf config by @bjf-frz in #5010
  • [Bugfix][Quantization] Initialize component quantization base state by @wuli666 in #5103
  • Fix loading of ModelOpt FP8 checkpoints for Cosmos3 by @wkutak in #5076
  • [Hardware][Ascend][Model] Optimize Qwen3-TTS on 310P by @zyz111222 in #4841
  • [Bug Fix] Hunyuan image cfg bugfix by @AbelSara in #4752
  • [CI] Add local job runner scripts for L2-L4 pytest execution by @yenuo26 in #4672
  • [Refactor][OutputProcessor 1/8]: clean up multimodal payload accumulation and move payload logic into MultimodalPayload & directory refactor by @bowieshi in #4980
  • [Bugfix] fix issue 5065 by @zhumingjue138 in #5118
  • [Bugfix] Fix audio.format parameter silently ignored in chat completions by @oglok in #4718
  • [Feature] Support MOSS-TTS-Local-v1.5 vocoder graph by @gcanlin in #4929
  • [CI][Perf] Add JSON mark support and paired parametrize for L4 perf, so as to further support performance‑case selection for NPU‑CI. by @yenuo26 in #5084
  • Fix hunyuan ci by @BLANKETusers in #5143
  • Add Cosmos3 Edge and Distilled checkpoints support by @bastefaniak in #5001
  • [Bugfix][Quantization] Remap ModelOpt NVFP4 scale tensors by @pst2154 in #5087
  • Fix FP8 Quack GEMM call when inference_mode() and torch.compile() is used. by @bastefaniak in #5153
  • examples: replica data-parallel recipe + benchmark for video DiT (#4707) by @linzhenpl07 in #5052
  • [CI][NPU]: Add nightly performance test for NPU - Qwen3-TTS on A3 by @FayeSpica in #5158
  • [bugfix] Use FlowMatchEulerDiscreteScheduler from diffusers 0.39.0 with correct RNG handling for upcoming Cosmos3 distilled models by @bastefaniak in #5176
  • [Bugfix] Add single-80GB deploy config for MOSS-TTS (resolves #4643 OOM) by @IneshReddy249 in #4761
  • [Bugfix] Fix broken FrameSimilarityFilter threshold test by @NickCao in #4786
  • [CI][Test] Tier diffusion offloader CI and reduce gpu_4_queue merge usage and fix #5182 by @yenuo26 in #5185
  • [Config] Return VllmOmniConfig from create_from_model by @zwhzzz0821 in #4818
  • [Refactor] Migrate Legacy Stage Configs to the Pipeline Registry by @zwhzzz0821 in #5031
  • [Doc] Fix Qwen3-Omni modality documentation examples by @psv666 in #5173
  • Support Fish Speech TTS inference on XPU platform by @Liangyx2 in #4856
  • [Bugfix] Fix stale pipeline resolver test call by @Acerak01-fy in #5193
  • [CI/Build] Add Precommit Hooks for Catching Missing PytestMarks by @alex-jw-brooks in #4953
  • [Refactor][CI] Reorganize .buildkite directory by platform by @yenuo26 in #5119
  • [Feat] support CFG Parallel for FLUX kontext by @RuixiangMa in #2281
  • docs: update WeChat QR code by @david6666666 in #5204
  • [Feature] Support per-video audio masks for Qwen Omni by @hbhflw2000 in #4656
  • [Cleanup]Migrate model validation to adapters and clean up serving_speech.py by @sphinxkkkbc in #4833
  • [Bugfix][Qwen3-TTS] Mode-aware ref_audio artifact readiness (fixes #5049) by @ShengleiFu in #5157
  • [Quantization] Add FLUX.2-dev Mistral TE online FP8 support by @dpeng123 in #5136
  • [Refactor] Unify the LTX-2 and LTX-2.3 pipeline runtime by @mglyn in #5147
  • [Hardware][Ascend][Model] Add NPU support for MiniCPM-o 4.5 talker/vo… by @amy-why-3459 in #5117
  • [BugFix] Fix SoulX-Singer deploy pipeline registration by @zwhzzz0821 in #5210
  • [Bugfix] Fix issue 5205, add trust-remote-code by @zhumingjue138 in #5213
  • Fix Qwen3-Omni thinker fused MoE LoRA by @napleon-liu in #5191
  • [Bugfix][Perf] mimo_audio: fix per-request speech-code routing under continuous batching by @JuanPZuluaga in #5070
  • [Example][MiniCPM-o] Add offline/online MiniCPM-o 4.5 examples by @amy-why-3459 in #5222
  • [Bug] Fix Ming feature extractor/processor registration crash under transformers >= 5.x by @mjZhaoElaine in #5243
  • [Hardware][Ascend] Keep HiFT vocoder on NPU by @00fish0 in #5242
  • [Bugfix] Fix MiniCPM-o 4.5 audio placeholder pool step by @frank-2077 in #5116
  • [bugfix] Cosmos3 edge fix config use_k_norm_und_for_gen name by @bastefaniak in #5239
  • [diffusion][model] Add LingBot Video dense and MoE support by @wtz2333 in #5035
  • [Bugfix][Quant] Skip quack FP8 GEMM when scales are unpopulated by @lishunyang12 in #5262
  • Update perf baseline base on 7/5-7/11 7 days avg. by @congw729 in #5231
  • [Refactor] Migrate replica-DP Wan2.2 example to --deploy-config by @lishunyang12 in #5267
  • [CI] skip test_audio_in_video_default_loader_sampling_regression (#5248) by @yenuo26 in #5280
  • [Bugfix][CI] Recognize local_model in check-test-ci-coverage hook by @yenuo26 in #5275
  • [BugFix][Diffusion] Preserve image payloads with reasoning metadata by @akshatvishu in #5238
  • [Model] Support Boogu/Boogu-Image-0.1-Base and Boogu/Boogu-Image-0.1-Edit by @zzehli in #4995
  • [Bugfix] MiniCPMo-4.5 bugfix by @R2-Y in #5233
  • [Refactor]: clean up diffusion executor lifecycle by @fhfuih in #5215
  • [Core] Cleanup Omni connector runtime and transfer backends by @spencerr221 in #5096
  • [Refactor][Misc] Remove unused code in diffusion hooks/model_loader by @congw729 in #5270
  • [Bugfix][CI] Relax higgs_audio_v2 PCM streaming HNR threshold (fixes #5045) by @yuekaizhang in #5232
  • [Refactor]: clean up diffusion scheduler interfaces by @fhfuih in #5216
  • [Model] Add Cache-DiT support for FLUX.1-Kontext-dev by @Sendoh-code in #4205
  • [Bug][CI] Pin the LTX FP8 quality gate to its established sigma schedule by @mglyn in #5302
  • [Refactor]: clean up diffusion worker interfaces by @fhfuih in #5217
  • [Refactor]: clean up diffusion model runner surface by @fhfuih in #5218
  • [CI][Bugfix] remove module-level skip_if_gated_repo_inaccessible in flux kontext e2e (#5250) by @yenuo26 in #5297
  • [Refactor] Migrate Step-Audio2 online test to deploy config by @zwhzzz0821 in #5309
  • [Refactor] [0/N] Scheduler clean dead code by @R2-Y in #5312
  • [Model] MiniCPM-o 4.5: optimize SigLIP position IDs by @Fyrgo8 in #5130
  • [Refactor]: Remove unnecessary config getattr by @princepride in #5199
  • [Bugfix] Return error for unsupported output modalities instead of empty choices by @oglok in #4720
  • [Bugfix][NPU] Port OmniConnectorModelRunnerMixin to NPU runners to fix async_chunk=false full-payload hang (#5234) by @FayeSpica in #5290
  • [Refactor]: Remove sensenova examples by @princepride in #5201
  • [Bugfix] Skip non-positive scheduled token spans in omni stage runners by @cr-gao in #5269
  • [Tests] Config driven tiny model builder by @NickCao in #5090
  • [CI/Perf] Optimize Docker Caching by @alex-jw-brooks in #5133
  • [Refact] Refactor diffusion output streaming by @bjf-frz in #5166
  • [Perf][Ming-TTS] Cache speaker embeddings for uploaded reference audio by @LHXuuu in #5240
  • Generalize AR-Diffusion KV session capabilities by @Jack47 in #5271
  • [Diffusion] Add FLUX.2-dev CPU Offload (Layerwise) by @dpeng123 in #5256
  • [Model][MiniCPM-o 4.5] Resolve Hugging Face model ID to local cache path in TTS by @psv666 in #5301
  • [Full Duplex] Feat: Support Full-Duplex realtime runtime & add MiniCPM-o 4.5 demo by @Sy0307 in #3907
  • [CI] move Krea-2 expansion to slow and skip failing README snippets by @yenuo26 in #5347
  • [CI/Bugfix] Fix empty vllm_omni stub breaking stage CLI imports after Docker cache (#5338) by @yenuo26 in #5341
  • [Refactor] Centralize metrics related helpers to metrics/ by @ZacheryAU in #5168
  • [Refactor] Split vllm_omni/entrypoints/cli/benchmark/serve.py by @ZacheryAU in #5206
  • [Bugfix][XPU] Fix free-memory abort and num_speculative_steps crash on XPU by @Joshna-Medisetty in #5330
  • [Refector] Remove mammothmodal2-preview example by @princepride in #5335
  • [CI/Test] Skip realtime async_chunk WebSocket case blocked by #3907 (#5363) by @yenuo26 in #5367
  • [Diffusion] Add VAE patch parallel support for FLUX.2-dev by @dpeng123 in #5292
  • [perf] Minicpm o4.5 optimization by @R2-Y in #5228
  • [Perf] Refactor MOSS-TTS-Local v1.5 talker and local structure for CUDA Graph by @gcanlin in #5197
  • [Bugfix][Core] Fix async streaming segment-stop accounting by @vklimkov-nvidia in #5183
  • [BugFix] Fix Helios Cholesky positive-definite crashes and CPU LAPACK… by @akshatvishu in #4921
  • [Refactor][CI] Unify skip-ci targeting and mirror_hardwares pipeline presets by @yenuo26 in #5254
  • [Refactor][1/N]diffusion/cache: cache-dit by @yangjianjuan in #5226
  • [Feature] Add AllGather-KV sequence-parallel attention str… by @AbelSara in #4968
  • [perf] Add configurable diffusion compile granularity by @TaffyOfficial in #4603
  • [CI/Bugfix] Move CI editable APP_DIR to /opt/vllm-omni for k8s package discovery (#5364) by @yenuo26 in #5368
  • [BugFix][CI] Upgrade ROCm and CUDA docker base images to v0.25.0 by @akshatvishu in #5115
  • [Bugfix][Frontend] Remove async-chunk guard from realtime API by @Sy0307 in #5383
  • [CI/Bugfix] Pin dev deps and downgrade mooncake for connector CI (#5389) by @yenuo26 in #5392
  • perf(qwen3-tts): cache decoder masks and compile pre-transformer by @Ma1oneZhang in #5107
  • [Bugfix][Higgs-Audio-V3] Propagate Sampling Parameters to Sampler by @sphinxkkkbc in #5406
  • [BugFix]Add MiniCPM-o 4.5 end-to-end test suite (offline, online serving) by @y-null in #5237
  • [Refactor]: Intrduce x_to_text.py in examples by @princepride in #5384
  • [Recipe] Add Cosmos3-Edge by @lishunyang12 in #5313
  • [Refactor][Docs]: Remove stale BAGEL offline guide by @princepride in #5429
  • [Bugfix] skip test case for #5437 by @zhumingjue138 in #5440
  • feat(qwen3-tts): add codec_chunk_ramp for gradual chunk size warmup by @Wallbreazzz in #5152
  • [Bugfix][Frontend] Parse VLLM_USE_MODELSCOPE via vllm.envs by @yashkgp in #5428
  • [BugFix] Couple audio+video mm-cache for use_audio_in_video by @ZhengWG in #5308
  • test: make Qwen-Image diffusers-backend latency check fair and stable (#5108) by @IneshReddy249 in #5132
  • [Core] Session state manager for AR-diffusion world models (RFC #4480 Phase 0) by @wjsuijlenh in #4487
  • [Frontend] Add midway prompt update for streaming video generation by @fhfuih in #4652
  • docs: update WeChat QR code by @david6666666 in #5430
  • [Model] Optimize MiniCPM-o multimodal encoder memory by @xsmccc in #5188
  • [Refactor][WIP] Add missing test for modelrunner (G1/N) by @tzhouam in #5333
  • [Deploy] Reduce MiniCPM-o single-GPU startup memory by @R2-Y in #5447
  • [Model] Support MammothModa2-Dev by @princepride in #5411
  • Fix missing sequence_parallel_size in deploy config output by @BLANKETusers in #5449
  • [Refactor]: Mammothmoda2-dev use x_to_text.py in examples by @princepride in #5454
  • [BugFix][MiniCPM-o] Restore audio output without async chunk by @R2-Y in #5455
  • [NPU][HunyuanImage3] Adapt diffusion FusedMoE for vLLM >= 0.24.0 by @jiangmengyu18 in #5167
  • [Config] Read stage metadata from VllmOmniConfig by @Acerak01-fy in #5343
  • [Attention] Add trtllm diffusion attention backend with Skip-Softmax by @lishunyang12 in #5283
  • [Refactor][Ming-TTS] Move speaker extraction and caching to Stage-0 by @LHXuuu in #5351
  • [Rebase] Rebase to vllm 0.26.0 by @tzhouam in #5443
  • [Bugfix][Connectors] Flush processor tail on terminal async-chunk sends by @linyueqian in #5414
  • [Bugfix][Realtime] Stop disconnected sessions from cycling through stages by @linyueqian in #5388
  • [Refactor] Migrate Voxtral TTS XPU stage config to --deploy-config by @Joshna-Medisetty in #5467

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Full Changelog: v0.25.0rc1...v0.26.0rc1

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Jack47, xuechendi, and 69 other contributors
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