sqlite-utils 4.0rc2 Released, Developed with Claude Fable for ~$149.25

Jul 10, 2026

Simon Willison released sqlite-utils 4.0rc2, developed primarily using Claude Fable for about $149.25. The AI identified critical bugs, including a data loss issue in delete_where() that left connections in a broken state. Over 37 prompts and 34 commits, the team resolved all release blockers and made design improvements.

Why it matters: This demonstrates the growing capability of AI coding agents to perform complex software maintenance tasks, including identifying subtle bugs and managing major version releases.

Full story at: Simon Willison's Weblog ↗