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Optimize font startup for 26.3 优化字体首次加载与图集上传 - #275
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- 分离字体度量和字形生成，提前预热常用样式并按需生成字形 - 使用有界后台任务队列处理字形，缩短图集发布锁并保持文字宽度稳定 - 复用字体纹理并只上传变化区域，避免整页转换和重复创建，及时释放临时图像 - 保留完整文本布局缓存，补充异步生成、并发请求及增量上传回归测试
🌿 Roseau API Breaking Change Report
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Gugle2308
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Nov 13, 2026
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结论：PR #275 已合并，无需审查。
"Optimize font startup for 26.3 优化字体首次加载与图集上传" 的状态为 state=closed 且 merged=true，合并时间 2026-11-13T18:27:18Z，squash 提交为 9bca759767，目标分支为 dev/26.3；共 8 个文件，新增 289 行、删除 139 行。按 AGENTS.md 的硬性规则，PR 一旦处于 closed 状态就立即停止，不发布任何评论；因此本轮不输出审查正文，也不改动 PR 标题。
至此，同一组 6 条分支移植 PR 已全部合并：#270（dev/1.21.4）、#271（dev/1.21.8）、#272（dev/1.21.11）、#273（dev/26.1）、#274（dev/26.2）、#275（dev/26.3）。若后续有新的开启状态 PR，需要重新判断。
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perf(font): 优化字体首次加载与图集上传