### Changelog

[pphoto808]

Changelog

• Update to v1.1.1
• Add fix for generating on Intel Macs
• Add x64 installer for Intel Macs
• Extend PyTorch 2.0 fix to work with PyTorch 2.0.1
• Add automatic attention upcasting option
• Add fix to reduce UNet NaNs with sub-quadratic attention (it can still happen sometimes, due to buggy PyTorch memory management; if it does then restart web UI)

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This discussion was created from the release Offline Standalone Mac Installer for Stable Diffusion Web UI (unofficial) v1.1.1 Release Candidate.

Originally posted by @brkirch in https://github.com/brkirch/stable-diffusion-webui/discussions/19

[pphoto808]

Running this on base Mac Studio M2 Ultra. Everything runs smoothly as long as I have Upcast cross attention...enabled. For a 512x640 resolution, 30 steps image render time is about 25-30 seconds, less with certain samplers. Adding Hirez.fix increases that to about 1:20. Img2img upscape about 30 secs. I have Roop entension running on regular SD install but it will not install on this build. Haven't figured out a work-a-round.