OK, here’s a summary, sorted by version: Version | User ------- | ---- 4.0.0.0.1.1762585687 | kthchew 4.0.0.0.1.1762585687 | nathan-pierce-veertu 4.0.0.0.1.1772003596 | eskimo As you can see, I’m on the latest. And this is indeed the version of the MobileDevice package inside Xcode 26.4 [1]. Consider: % plutil -extract CFBundleShortVersionString raw /Applications/Xcode.app/Contents/Info.plist 26.4 % xar -xf /Applications/Xcode.app/Contents/Resources/Packages/MobileDevice.pkg % cat PackageInfo … Earlier I wrote: [quote='880808022, DTS Engineer, /thread/819456?answerId=880808022#880808022'] When I wrote the above I hadn’t yet installed Xcode 26.4rc. So I installed that and repeated the test. [/quote] I don’t think that had an effect because I’d installed an earlier release of the Xcode 26.4 beta, one that had the same MobileDevice installer version. So I was on the latest MobileDevice prior to running my test, and updating to Xcode 26.4rc didn’t change that. So my understa