Stability AI, the company behind Stable Diffusion, announced the release of SDXL 0.9, a new diffusion software (like SD 1.5 or SD 2.1), in mid-July.
If you click on the thumbnail above, you will be redirected to the video announcement of the Youtube channel "Stable Foundation" about the release of SDXL 0.9. The 49 minutes video explains the roadmap of the development of the software and the related models. The specification that one needs to have on his computer to actually run it and more...
If you want to read the official announcement, on the website of Stability AI, click here.
If finally, you want to test SDXL 0.9, you have 2 options:
You can go to ClipDrop for SDXL 0.9 (free, without registration but with a queue).
You can also go to Dreamstudio for SDXL 0.9 (free, requires registration, limited number of credits).
(and Btw the video that i link above says that these 2 options will likely be merged in the future)