This morning, NVivo 15.5 threw up this warning that the software won’t be compatible with future versions of macOS.

I found the following FAQ entry on the Lumivero Community pages, so fingers crossed they get there in time!
When Rosetta 2 Support is Ending
Apple Support for intel-based apps will continue through MacOS 27 (expected in October 2026)
MacOS 28, due in late 2027, will be the first macOS version without support for intel-based apps.
See the article below for details: Using Intel-based apps on a Mac with Apple silicon – Apple SupportWill NVivo Mac continue to run?
Lumivero intends to offer a native Apple Silicon version of NVivo by the time MacOS 28 is released. There should be no interruption in the ability of NVivo Mac to run on future MacOS systems.
