Ladybird 开源浏览器项目在 2026 年 8 月实现了显著的性能突破和功能迭代1。该月重点关注引擎优化，多项基准测试成绩显著提升：Speedometer 2 从 47 分提升至 64 分，Speedometer 3 从 2.5 分提升至 3.9 分，StyleBench 从 3.5 分跃升至 83 分1。在 Web 标准兼容性方面，Web Platform Tests 得分从 2,079,020 增加至 2,088,677，新增 9,657 个子测试1。
功能方面，该版本新增了 Twitch 视频播放、CSS 滚动捕捉、JavaScript 调试工具支持、可暂停和恢复的下载功能及会话恢复等特性1。性能优化包括推出新样式引擎、布局结果缓存、CSS 动画离线程运行等改进，并将 CSS 解析和绘制管道向 Rust 迁移1。具体来看，canvas fillStyle 解析性能从比 Chromium 慢 90 倍改进到只慢 2 倍，replaceChildren() 方法从 13 倍慢改进至 4 倍以下1。游戏性能测试中，Minecraft4k 的帧率从 10.2 FPS 提升至 14.5 FPS1。
项目获得新赞助商 Arnav Guleria 支持，捐款额为 5,000 美元1。开发团队计划在 2026 年发布首个 alpha 版本1。
Ladybird, the open-source web browser engine, delivered substantial performance improvements throughout August 2026, achieving significant benchmark gains across multiple testing frameworks 1. The Speedometer 2 score climbed from 47 to 64, while Speedometer 3 advanced from 2.5 to 3.9, and StyleBench surged from 3.5 to 83 1. These metrics reflect the development team's focus on engine optimization during the month.
The performance enhancements extended to real-world rendering scenarios, with Minecraft4k frame rates improving from 10.2 FPS to 14.5 FPS 1. Critical API operations saw dramatic speedups: canvas fillStyle parsing improved from running 90 times slower than Chromium to only twice as slow, while replaceChildren() reduced its performance lag from 13 times slower to under 4 times slower 1. Concurrent with these optimization efforts, Web Platform Tests coverage expanded from 2,079,020 to 2,088,677 passing subtests, representing an increase of 9,657 test cases 1.
August's development roadmap emphasized architectural improvements, including the rollout of a new style engine, layout result caching, and migration of CSS parsing and painting pipelines to Rust 1. Feature additions during the period included support for Twitch video playback, CSS scroll snapping, JavaScript debugging tools, resumable downloads, and session recovery functionality 1. The project also welcomed new sponsorship support from Arnav Guleria, contributing $5,000 1. Looking ahead, the Ladybird team is targeting the release of the first alpha version in 2026 1.
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