Support new macOS naming and numbering

[harrisonravazzolo]

Fleet version: Fleet 4.69

Web browser and operating system: Chrome latest

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💥  Actual behavior

macOS 26 'Tahoe' displays in Fleet as macos 16.0 which is not in alignment with new naming convention released by Apple.

🧑‍💻  Steps to reproduce

View host vitals in device running Tahoe

[iansltx]

@harrisonravazzolo Does Apple have documentation somewhere on how to map versions, or what to expect on when they might actually flip the reported version to the year-based system? This feels like it might be a case of their beta builds not actually reporting the correct version yet, versus something like "Windows 8 is actually Windows 6.2."

[nonpunctual]

@iansltx @harrisonravazzolo There have been cases where macOS, internally, would report different version strings, but, usually the discrepancies are on minor version stanza (like it will say macOS 14 & someplace else say 14.0) - I thought Fleet was doing some kind of auto-increment...

https://github.com/osquery/osquery/blob/95b48d60e514d64f5e3962b240906938b8d3d14a/osquery/tables/system/darwin/os_version.mm#L15

In this case, the places that seem to matter are reporting correctly:

brock@Brocks-Virtual-Machine ~ % sw_vers    
ProductName:		macOS
ProductVersion:		26.0
BuildVersion:		25A5316i
brock@Brocks-Virtual-Machine ~ % sudo cat /System/Library/CoreServices/SystemVersion.plist 
Password:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>BuildID</key>
	<string>88950DCE-6531-11F0-8AE3-AAF8485610A2</string>
	<key>ProductBuildVersion</key>
	<string>25A5316i</string>
	<key>ProductCopyright</key>
	<string>1983-2025 Apple Inc.</string>
	<key>ProductName</key>
	<string>macOS</string>
	<key>ProductUserVisibleVersion</key>
	<string>26.0</string>
	<key>ProductVersion</key>
	<string>26.0</string>
	<key>iOSSupportVersion</key>
	<string>26.0</string>
</dict>
</plist>
brock@Brocks-Virtual-Machine ~ % sysctl kern.osproductversion
kern.osproductversion: 26.0

[sharon-fdm]

Timebox 2 points for research

[lucasmrod]

It's displaying well for me on Beta version 6 (25A5338b)

[AndreyKizimenko]

Yep, can confirm that also seeing this as resolved on the latest beta

[lucasmrod]

@harrisonravazzolo Please re-open if you still see issues with Beta 6 or higher.

[fleet-release]

In new macOS name, Fleet's clarity does take flight, Like Tahoe at night.