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This Month in Ladybird – October 2026

ladybird.org119 points41 comments
Screenshot of This Month in Ladybird – October 2026

Ladybird’s October development centered on making the browser more responsive and faster. Style, layout, and paint recording now run on separate threads, so animations and hover effects can keep updating while JavaScript blocks the main thread; layout queries still wait for current results to avoid stale information. LibJS gained a speculative JIT for Linux and macOS on x86-64 and AArch64, while a new WebAssembly engine adds support for features such as exceptions and garbage collection and scores about seven times higher on shared JetStream 3 workloads. Performance improved across benchmarks: Speedometer 2 rose from 84 to 156, Octane increased 4.7-fold, and JSLinux now boots Alpine Linux in 1.8 seconds.

The browser also received a complete interface redesign for macOS and Linux, including tab search and pinning, window restoration, improved scrolling, settings, and light, dark, and private-window themes. New capabilities include screen-reader support, spell-checking, picture-in-picture, text-fragment links, site permissions, and early developer tools; compatibility fixes improved sites such as Google Slides, GitHub, Gmail, and Instagram. Ladybird added many web-platform features and passed Safari Technology Preview on Web Platform Tests, finishing at 2,184,722 subtests after a gain of 75,650, much of it from AI-assisted fixes. Security work tightened renderer restrictions and expanded process isolation to limit what a compromised component can access.

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