Apple has released the update to bring macOS Tahoe to version 26.4, and security updates for Sequoia and Sonoma to bring them to 15.7.5 and 14.8.5.

Download size for the 26.4 update on Apple silicon Mac is very large, at around 7.15 GB.

Release notes for 26.4 include:

• support for new AirPods Max 2
• compact tabs as an option in Safari
• Freeform joins Creator Studio, with advanced tools and a premium content library
• Purchase Sharing in Family Sharing

and eight new emoji.

Security release notes for 26.4 list over 70 fixes, those for Sequoia 15.7.5 list about 56, and those for Sonoma 14.8.5 list about 50. None are reported as being known to be exploited in the wild at present.

Enterprise release notes for 26.4 are here.

Firmware in Apple silicon Macs is updated to a new mBoot firmware version numbering system, with the current version given as 18000.101.7. The macOS build number is 25E246, and Safari is version 26.4 (21624.1.16.11.4).

If you’re running SilentKnight older than version 2.14 (71), then it’s likely that it will crash as a result of the change in firmware version. Please use version 2.14 from here.

I’ll be posting an analysis of what has changed later today.