Macbook Pro macOS 15 Sequoia USB Upgrade for 2007-2017 Macs – Full Instructions

From there, you can install or upgrade to the latest version of macOS Sequoia. Once the upgrade is complete, you’ll be able to continue installing future updates as normal. The following older systems (2007–2011) can also be upgraded and generally run smoothly, remain stable, and support the latest point releases of Sequoia.