Adobe has added Canon EOS R3 RAW support in the latest updates for Lightroom and Photoshop.
Along with new camera support, Adobe has also added a ton of new features in the latest update. You can read all about it on the Lightroom Blog.
The Canon EOS R3 is scheduled to begin shipping on November 26, 2021.
Preorder: Canon EOS R3
Now just add the RF 16mm to lens corrections and I'll be a happy camper!
Looking forward to seeing the manual released as well.
Edit: well at least the support page is alive now, although with little or no content:
EOS R3 - Canon Europe
Oh yes. For R3, R5, R6 and 1DXIII:
Because literally nobody owns a R3, but finally having support for the R5 and R6 is really significant.
I moved to DxO PL4 for all post processing due to the lack of camera matching color profiles for the R6 in LR. I'm too lazy to create my own profiles or try to make others work. I've been quite pleased with the results. My workflow seems simpler in DxO and I am very pleased with the results from Prime and DeepPrime NR.
I'm glad to see the profiles back in LR for the R series, but that may not be enough to bring me back for new work. I've been considering dropping Adobe all together, but I may keep it for convenience. I have thousands of my scanned film and digital images cataloged from the last 50 years, and hundreds of scanned film and print images from the prior 50 years.