I just released a bug fix update to Nitro. You can get it on the App Store via the Updates tab or by going to this link. If you have problems with the link, then search for Nitro Photo in the App Store.
If you are going to be installing macOS 27, you definitely want to get this update, as it addresses compatibility issues with macOS 27 (Golden Gate).
These are the changes:
* Support for Sony RX10 V.
* Fix bug with Recover Highlights where the slider values would not be remembered
* Fix bug when scrolling the grid where the image was sometimes also selected.
* Work around bug in macOS 27 when reordering keywords.
* Work around crash in macOS 27 when exporting.
* Work around bug in macOS 27 when reordering adjustments.
I’m working hard on another update that adds support for Apple’s RAW v9 decoder, and other features added by Apple in the “OS 27” versions.