Apple has released an update to XProtect for all versions of macOS, bringing it to version 5342. As usual it doesn’t release information about what security issues this update might address.

This version doesn’t appear to bring any additions or amendments to either the main Yara rules, or for Osascript rules in XPScripts.yr, but there has been extensive reformatting, tidying, and relabeling of lists.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5342

Sequoia and Tahoe systems only

This update hasn’t yet been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5342 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update