JavaScriptCore, the JavaScript engine for Apple’s WebKit browser engine, has been upgraded with a new bytecode format that improves memory efficiency and type safety. The goal of the format, detailed ...

The iOS 18.1.1, iPadOS 18.1.1, and macOS Sequoia 15.1.1 updates that Apple released today address JavaScriptCore and WebKit vulnerabilities that Apple says have been actively exploited on some devices ...