dev/blog

Releases, engineering notes, and what’s coming next.

Ultralight 1.4 Out Now
News Ultralight 1.4 Out Now

Ultralight 1.4 is now available. This major release brings our core engine up to WebKit 615.1.18.100.1, adds ARM64 support, and introduces powerful new rendering and security features.

April 21, 2025
News Ultralight 1.3 Now Available

We are pleased to announce the stable release of Ultralight 1.3! This major new release improves rendering accuracy, offers new debugging tools, and experimental support for Xbox, PS4, and PS5.

July 24, 2023

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