stable-diffusion
                                
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                        How to migrate to Stable Diffusion v 2.0 or 2.1?
This seems to be geared towards stable diffusion v1 rather than v2. Is changing to v2 as simple as downloading/using a new model or do we also need code changes?
Also, are the new models more efficient in terms of VRAM or processing speed, or only better in quality?