Apple has just released the following security updates, to address CPU security vulnerabilities known as Spectre:
- macOS High Sierra 10.13.2 Supplemental Update, which includes an updated version of Safari 11.0.2.
- A separate Safari 11.0.2 update, for El Capitan and Sierra.
- iOS 11.2.2, for iOS 11.
These updates are relatively small, and strongly recommended as protection against the Spectre vulnerability. As usual, they are available via the App Store (for Macs).