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Bump diffusers from 0.37.0 to 0.38.0#310

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Bump diffusers from 0.37.0 to 0.38.0#310
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@dependabot dependabot Bot commented on behalf of github May 8, 2026

Bumps diffusers from 0.37.0 to 0.38.0.

Release notes

Sourced from diffusers's releases.

Diffusers 0.38.0: New image and audio pipelines, Core library improvements, and more

New Pipelines

LLaDA2

LLaDA2 is a family of discrete diffusion language models that generate text through block-wise iterative refinement. Instead of autoregressive token-by-token generation, LLaDA2 starts with a fully masked sequence and progressively unmasks tokens by confidence over multiple refinement steps.

Nucleus-MoE

NucleusMoE-Image is a 2B active 17B parameter model trained with efficiency at its core. Our novel architecture highlights the scalability of a sparse MoE architecture for Image generation.

Thanks to @​sippycoder for the contribution.

Ernie-Image

ERNIE-Image is a powerful and highly efficient image generation model with 8B parameters.

Thanks to @​HsiaWinter for the contribution.

LongCat-AudioDiT

LongCat-AudioDiT is a text-to-audio diffusion model from Meituan LongCat.

Thanks to @​RuixiangMa for the contribution.

Ace-Step 1.5

ACE-Step 1.5 generates variable-length stereo audio at 48 kHz (10 seconds to 10 minutes) from text prompts and optional lyrics. The full system pairs a Language Model planner with a Diffusion Transformer (DiT) synthesizer; this pipeline wraps the DiT half of that stack, and consists of three components: an AutoencoderOobleck VAE that compresses waveforms into 25 Hz stereo latents, a Qwen3-based text encoder for prompt and lyric conditioning, and an AceStepTransformer1DModel DiT that operates in the VAE latent space using flow matching.

Thanks to @ChuxiJ for the contribution.

Flux.2 Small Decoder

Make your Flux.2 decoding faster with this new small decoder model from the Black Forest Labs. You can check it out here. It was contributed by @​huemin-art in this PR.

... (truncated)

Commits
  • 275869d Release: v0.38.0-release
  • 42a46e4 Fix missing latents_bn_std dtype cast in VAE normalization (#13299)
  • 1a8a17b Add ACE-Step pipeline for text-to-music generation (#13095)
  • 303c1d8 [Ernie-Image] Add lora support (#13575)
  • 716f246 Fix UniPC scheduler device mismatch when using offloading (#13489)
  • a5bc046 NucleusMoE docs (#13661)
  • 4744648 [ci] use tokenizers stable installtion in CI. (#13562)
  • 50cb2db feat: support ring attention with arbitrary KV sequence lengths (#13545)
  • 0fff459 Fix ErnieImagePipeline pre-computed prompt_embeds + num_images_per_prompt sha...
  • 2173c55 [docs] fix typo in AutoencoderOobleck docs (#13642) (#13645)
  • Additional commits viewable in compare view

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Bumps [diffusers](https://github.com/huggingface/diffusers) from 0.37.0 to 0.38.0.
- [Release notes](https://github.com/huggingface/diffusers/releases)
- [Commits](huggingface/diffusers@v0.37.0...v0.38.0)

---
updated-dependencies:
- dependency-name: diffusers
  dependency-version: 0.38.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file python Pull requests that update python code labels May 8, 2026
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github-actions Bot commented May 8, 2026

Lint Results

Check Status
Python
Shell
YAML
JSON
Markdown
Bicep

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github-actions Bot commented May 8, 2026

Mypy Type Checking

❌ Issues found

Metric Count
📂 Files 295
❌ Errors 1
⚠️ Warnings 0
📝 Notes 0
Full mypy output
wrapper/run_httpserver.py:1269: error: Incompatible types in assignment (expression has type "bytearray", variable has type "bytes")  [assignment]
Found 1 error in 1 file (checked 295 source files)

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github-actions Bot commented May 8, 2026

Diff Coverage

Diff: origin/main...HEAD, staged and unstaged changes

No lines with coverage information in this diff.

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github-actions Bot commented May 8, 2026

Test Results

1 144 tests  ±0   1 144 ✅ ±0   14m 50s ⏱️ -1s
   13 suites ±0       0 💤 ±0 
   13 files   ±0       0 ❌ ±0 

Results for commit b85c98f. ± Comparison against base commit c20eb25.

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github-actions Bot commented May 8, 2026

Code Coverage

Package Line Rate Complexity Health
. 80% 0
apps 67% 0
apps.streamanimate 89% 0
apps.streamcast 91% 0
apps.streamchat 88% 0
apps.streamdub 64% 0
apps.streamedit 79% 0
apps.streamlecture 94% 0
apps.streammovie 89% 0
apps.streampersona 64% 0
apps.streamshort 71% 0
simulator 88% 0
streamwise 68% 0
tests 99% 0
tests.simulator 100% 0
tests.streamwise 100% 0
tests.streamwise_app 99% 0
wrapper 67% 0
wrapper.4kagent 94% 0
wrapper.bagel 37% 0
wrapper.cogview 45% 0
wrapper.fantasytalking 55% 0
wrapper.flux 74% 0
wrapper.flux2 100% 0
wrapper.flux2klein 99% 0
wrapper.fluxkontext 100% 0
wrapper.fluxkrea 99% 0
wrapper.fluxupscaler 68% 0
wrapper.hidream 88% 0
wrapper.hunyuanavatar 74% 0
wrapper.hunyuanframepack 52% 0
wrapper.hunyuanframepackf1 59% 0
wrapper.hunyuanframepackvae 63% 0
wrapper.hunyuanimage 84% 0
wrapper.imageresize 100% 0
wrapper.januspro 91% 0
wrapper.kokoro 87% 0
wrapper.llamagen 65% 0
wrapper.mock 86% 0
wrapper.podcasttranscript 45% 0
wrapper.qwenimage 89% 0
wrapper.qwenimageedit 88% 0
wrapper.realesrgan 77% 0
wrapper.slidetranscript 59% 0
wrapper.vibevoice 31% 0
wrapper.vibevoice.schedule 50% 0
wrapper.wan 34% 0
wrapper.wan22 75% 0
wrapper.xtts 75% 0
wrapper.yolo 69% 0
Summary 78% (26753 / 34131) 0

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