MacOS 10.14.5 Supplemental Update for MacBook Pro Released
Apple has released a supplemental update to MacOS Mojave for select 2018 MacBook Pro 15″ models. The update apparently addresses a firmware issue with the T2 security chip on those particular computers.
Labeled as “macOS Mojave 10.14.5 Supplemental Update for MacBook Pro”, the software update is specific to MacBook Pro 15″ models with the T2 security chip and is separate from the wider macOS 10.14.5 release that is available for all Mojave compatible Macs.
The supplemental update is not available for any other Mac models.