We had the SDXL_beta available running for a few days. Previously you were getting images of SDXL 0.9 and SDXL 0.9 + Refiner. Now you're going to get a comparison between SDXL 0.9 and SDXL 1.0 RC.
Please remember to tell us which image is the better one. Most frontends have been updated to allow this comparison. The above screenshot is a sample of how Artbot handles it.
Stability.ai is going to be regularly changing the models behind your generations so we're going to be seeing better and better versions.
Any day now