Conceptual diagram of Anthropic Scion, the system that replaces Git

Anthropic Migrates from Git to Scion: From 2,500 to 30,000 Daily Merges

Anthropic migrated its entire monorepo from Git to Scion, an in-house version control system, after daily code merges rose from 2,500 to over 30,000 between May and September 2026. The migration took five months and addresses the limitations of Git’s decentralized design in an environment where nearly every client is an always-connected AI agent.