Apple has just released the update to bring macOS Sequoia to version 15.3, together with security updates 14.7.3 and 13.7.3 for those using Sonoma or Ventura, who should also update to Safari 18.3 separately.

In Sequoia, this introduces Genmoji in Messages and other apps (Apple silicon only), and brings improvements in AI on Apple silicon Macs, although notification summaries for News & Entertainment are temporarily unavailable while they’re being sorted out.

Security release notes for Sequoia 15.3 are here, and list some 57 vulnerabilities that have been addressed, of which one is believed to have been actively exploited in iOS. Notes for Sonoma’s 38 fixes are here, and those for Ventura’s 30 are here.

Firmware on Apple silicon Macs (iBoot) is updated to version 11881.81.2, Safari to version 18.3 (20620.2.4.11.5), and the macOS build number is 24D60.

The 15.3 update is around 2.54 GB to download for Apple silicon Macs, and 1.93 GB for Intel models.

There’s also a separate update to XProtect imminent. I’ll post details about that separately.

Updated 1908 GMT on 27 January 2025.