Apple announced some changes for their Intel support. Version 26 is the last one to run on Macs with Intel CPUs. And for at least version 27, the Rosetta translation layer is supported. After that it may continue to run older software like games, which may never get recompiled.

All this is of course subject to change.

If you have an old application, you may need to put some work into upgrading it to build with a new Xojo version and build it as Universal application or Apple Silicon only.

On my own Mac, I quickly found over 50 self written tools, which are still on x86. You can find them using system information application. There is a section for applications, that you can sort by kind and find the intel ones.

For macOS it becomes impossible to not move with the stream and use the latest Xojo (or Xcode) versions. If you don't build your apps with Xojo 2025, please start moving projects up to the current version.

By announcing the changes early, Apple pressures people to at least recompile their applications with current compilers. This is a very different thing to Microsoft, where you can still run ancient applications just fine, like a Visual Basic 6 made app on Windows 11.