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Guard package install & shared-folder teardown against deleting user data (LykosAI#1733) (cherry picked from commit 31a28fddd8d579d1b3a0a5d826d13622ea7a7426) # Conflicts: # CHANGELOG.md
[dev to main] backport: Guard package install & shared-folder teardown against deleting user data (LykosAI#1733) (1379)
Fix Workflows page looping forever when the library links into ComfyUI's workflows folder (cherry picked from commit 3f7c5859d5a13b8324803468175cebd4f0fd2d6c) # Conflicts: # StabilityMatrix.Core/Services/WorkflowLibraryIndex.cs
[dev to main] backport: Fix Workflows page looping forever when the library links into ComfyUI's workflows folder (1385)
v2.16.4 entries for public LykosAI#1738 (CK attention + radio buttons), LykosAI#1737 (Windows ROCm 10 package indexes) and LykosAI#1726 (AI-Toolkit Python 3.11 distutils, LykosAI#1725); CSharpier on AiToolkit.cs. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Downmerg from public (LykosAI#1738, LykosAI#1737, LykosAI#1726)
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Add v2.16.4 Supporters shoutout
…-class Fix Wan2GP v13 Deepy crash caused by Gradio logging wrapper (cherry picked from commit 065eba01bf95b89170683a764eedaa51225ef430) # Conflicts: # CHANGELOG.md
[dev to main] backport: Fix Wan2GP v13 Deepy crash caused by Gradio logging wrapper (1393)
docs: add everyday package, model, and inference guides (cherry picked from commit c5c4dd6d2c0dfb89db11b90f6242b8ea5b8eff03)
[dev to main] backport: docs: add everyday package, model, and inference guides (1395)
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
docs: add v2.16.4 technical release notes
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Sep 16, 2026
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Fix package env vars silently overriding user Environment Variables settings (cherry picked from commit 14a253dd4a56b6302da32b9a849d884cae14fe50) # Conflicts: # CHANGELOG.md
[dev to main] backport: Fix package env vars silently overriding user Environment Variables settings (1400)
ionite34
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Sep 16, 2026
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Added
--use-ck-attention) as a Cross Attention Method launch option for ComfyUI and ComfyUI-Zluda - thanks to @e-nord!Changed
CUDA error: invalid argument/hipErrorInvalidValuefailures reported with the ROCm 7.14.1 builds — packages already on 7.14.1 need a reinstall, or an update that also upgrades PyTorch (like ComfyUI's) - thanks to @NeuralFault!Fixed
Data\Packagesto be imported — now shows the folder's total size and file count and requires explicit confirmation, instead of silently deleting everything in it; this includes the first-run one-click installer (#1733)user\default\workflowsfolder — theStability Matrixlink ComfyUI gets at launch pointed back into the same folder, nestingStability Matrix\Stability Matrix\...thousands of levels deep. That link is no longer created (and an existing one is removed the next time ComfyUI is launched) when it would loop, and the workflow and model folder scans now follow linked folders at most oncedistutilserror on installs from before v2.16.3 that still run Python 3.11, no reinstall needed - thanks to @NeuralFault!issubclass() arg 1 must be a class— Stability Matrix's console logging wrapper now preserves Gradio's exception class (Wan2GP #2298)Supporters
🌟 Visionaries
Small release, big priority: 2.16.4 is mostly about keeping your files exactly where you left them. Imported ComfyUI folders can't be wiped by surprise anymore, and a looping workflow link can't freeze the app. That kind of careful, unflashy work only gets our full attention because of our Visionaries, so thank you Waterclouds, MrMxyzptlk12836, bluepopsicle, Ibixat, Droolguy, snotty, dispenser, cusalapapen1481, moon_milky2843, sn3232323233350, CC, TwistedDragon, hasezou11013179, and Akros. Every folder that stays put has a bit of you in it. 💛
🚀 Pioneers
To our Pioneers SinthCore, Jisuren, jweg79, Hurbie53, Cjloha, Alligator1907, CommissarGiygas16050, bastardofbethlehem, Zombop, Silerae, joshsciascia72, and cy_hart691842: patch releases like this one land quietly, and you back them anyway. We never take that for granted. And hello to okachako, our newest Pioneer; it's so nice to see your name here! 💛