* Runtime problems specific to macOS
+** Spurious warnings on macOS 15.
+
+When starting Emacs from the terminal, the following warnings are
+displayed:
+
+2024-09-20 14:24:58.583 emacs[23293:150402] +[IMKClient subclass]: chose IMKClient_Legacy
+2024-09-20 14:24:58.583 emacs[23293:150402] +[IMKInputSession subclass]:chose IMKInputSession_Legacy
+
+As far as we can tell, this is harmless, and affects other software too.
+Our understanding is that this is a bug in macOS 15, and should be
+reported to and fixed by Apple.
+
+For more information, see:
+https://discussions.apple.com/thread/255761734?sortBy=rank
+
+
** Error message about malicious software when opening Emacs on macOS
When opening Emacs, you may see an error message saying something like