Businesses that use Apple Mac Book Pro computers should check for software updates regularly to ensure the computer is using the latest software.Running outdated software causes some computer problems.The intent is to provide our best recommendations regarding current product cycles, and to provide a summary of currently available rumors for each model.This page is based on rumors and speculation and we provide no guarantee to its accuracy. The company is said to be working on three updated models: a Mac Book Pro with Intel’s latest Kaby Lake processor, a more powerful version of the 12-inch Mac Book, and an updated 13-inch Mac Book Air, which could get a faster processor as well. Apple really wants you to think of the 13-inch Mac Book Pro as the Air’s successor.
Apple posted this in the now archived website About EFI and SMC firmware updates for Intel-based Mac computers.
There’s a fair amount of noise to wade through out there on this topic…
this post is a humble gathering of the current state, cira February 2017…
I assume this EFI partition must be on the primary internal disk.
Apple posted that firmware updates require a GUID partition scheme at the archived website Firmware updates for Intel-based Macs require a GUID partition scheme, although the site does not explicitly say this must be the primary drive.