Anthropic 弃用 Git，自研 Scion 上线
Anthropic 在官方工程博客中披露，公司已将主要单体代码仓库从 Git 迁移到自研版本控制系统 Scion。Anthropic 称，其日均代码合并量从 2026 年 5 月的约 2,500 次增至 9 月的逾 30,000 次，主分支历史接近 100 GB，CI 每天约需 2,500 万次代码检出；Scion 把提交、合并和历史查询等操作移到服务器端，客户端只保留有限缓存。Anthropic 内部测量称，Scion 基础设施的 CPU 与内存占用约为原 Git 镜像方案的 1/200，代码检出从数分钟缩短至数秒，CI 节省约 25% CPU；该项目由 7 人团队用 5 个月完成，Claude 也参与了开发，但 Anthropic 强调 Scion 面向超大型代码库和大量在线智能体，并非 Git 的通用替代品。
Anthropic 的案例显示，当 Claude 等编程智能体把代码合并量推到每天数万次时，为人类开发者设计的版本控制与 CI 基础设施会成为瓶颈，这也促使该公司重造源码管理系统。
Updated October 15 to include more detail on the projects that pioneered many of the techniques we use in Scion.
At Anthropic, coding is no longer the bottleneck to building systems or doing research. Claude is able to autonomously iterate on research loops, micro-optimize complex programs, and build new services from the ground up at a speed and scale we haven’t seen before. The bottleneck, now, is all of the developer infrastructure built for human scale: source control, builds, and CI.
In May 2026, Anthropic averaged around 2,500 code changes merged per day; as of September, we merged over 30,000 per day. We don’t expect this rate of growth to slow down anytime soon; the latent demand for merging code is practically infinite, and every bottleneck we remove immediately leads to a further increase in the amount of code we produce.
