Claude Code v2.1.263

Release Context

• This was the 209th Claude Code release of 2026 tracked by Havoptic.
• It shipped 1 day after Claude Code v2.1.261 (September 4, 2026).
• Claude Code: ships every 1 days — 30 releases in the last month.

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

• Antigravity CLI v1.1.28 (September 9, 2026)
• Grok Build v1.0.25 (September 9, 2026)
• Gemini CLI v0.59.0 (September 8, 2026)
• Devin Desktop v3.9.19 (September 8, 2026)
• Grok Build v1.0.24 (September 7, 2026)

Compare Claude Code: vs OpenAI Codex CLI · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI · vs Grok Build