0.18.36-CV

🎨 New Features

• nvidia/Qwen-Image-Flash (--model qwen-image-flash / qwen-flash): NVIDIA's DMD2 4-step distillation of Qwen-Image, with a transformer byte-identical to Qwen-Image-2512, so the 20B Qwen goes from minutes to about 24 seconds of denoising (768x768, q8, M5 Max; peak 40.78 GB). CFG is internalized per the model card: guidance is forced to 1.0, the per-step negative transformer pass is skipped entirely (halving per-step cost), and --guidance/--negative-prompt are declared conditional so the runtime warnings and mflux-capabilities report them correctly. The static shift-3 schedule is expressed through the existing sigma schema (base shift == max shift == ln 3), producing exactly [1.0, 0.9, 0.75, 0.5, 0.0] at any resolution. The qwen CLI also now resolves --model (it previously ignored it). (#55)

🐛 Fixes

• Golden-image comparator: atol defaults to 2 (upstream #467/#491): the hardcoded atol=0 collapsed tolerance to exact-match on near-black pixels, flagging visually identical dark references. Overridable via MFLUX_IMAGE_ALLCLOSE_ATOL, mirroring the rtol knob. (#52)
• --no-metadata (upstream #437): opt out of embedding generation parameters (EXIF UserComment and friends) in the output image. Default unchanged; independent of --metadata, which additionally writes the JSON sidecar. (#53)
• flux README no longer references nonexistent tools/ scripts (upstream #411): the inpaint section gives real mask guidance and the outpaint section uses the shipped ImageUtil helpers, snippet executed and verified. (#54)