I'm stuck. I'm trying to install the beta of macOS 27 (Golden Gate) for testing. I have: Created a new APFS volume Installed a fresh copy of macOS 26.7 Booted new volume, created an account, and logged in using my developer account Followed the instructions for "Installing and using Apple Beta Software" (https://developer.apple.com/support/install-beta/#macos-beta), specifically Opened System Settings > General > Software Updates Clicked on Beta Updates (i) button But the only options it gives me are "Off" and "macOS 26 Developer Betas". There is no place to select "macOS 27 beta" It shows my developer account in the beta updates window. I've confirmed that my account is up-to-date. There's obviously some step I'm missing, but I don't know what.

I'm now using Xcode 14.2 (14C18) and I'd like to the documentation features working again. The integrated documentation used to work in Xcode 13, but sporadically stopped working when I upgraded to Xcode 14. I recently noticed that there is now an explicit Product > Build Documentation command. When I run that, I get a bunch of failures. (Note that this is a large project with many targets, all of which build and archive OK.) The problem seems to be that all of the files (specifically some .h files) are getting compiled/scanned separately. Even ones that aren't included anywhere (for historical reasons). So I end up with failures for lines like this one: #error class unimplemented /* the sockets interface was never used */ This error doesn't occur during regular compilation, because the .m file that includes it is not included in any targets. Now some of these I could clean up, but the next error has me completely stumped. I have a simple "version.h" file that defines the following symbols: #define PRODVERSION_MAJOR 3 #define PRODVERSION_MINOR 0 #define PRODVERSION_FIX 0 #define PRODVERSION_BUILD 73 #define PRODVERSION_NUMERIC 3.0.0.73 The last line fails with the error "invalid suffix .0.73 on floating constant" Which makes me think that the preprocessor used by the document compiler is trying to interpret this symbol as a floating point number and failing. So is there away around this? I'm specifically wondering if there are preprocessor symbols defined by the documentation compiler that can be used (i.e. #ifndef __DocC__...) to exclude code from the documentation build.

Before Big Sur, there was a property list at /System/Library/CoreServices/backupd.bundle/Contents/Resources/StdExclusions.plist that contained a list of all of the standard files/locations that Time Machine would exclude from a backup. That file seems to have disappeared and I have been unable to find an equivalent. Furthermore, the tmutil isexcluded (i.e. NSURLIsExcludedFromBackupKey/CSBackupIsItemExcluded) does not reliably report these locations as excluded. So is there still a publicly accessible way of discovering the standard locations excluded by Time Machine?