Originally published on rohitraj.tech
Six ships from Week 23 of 2026 that change how you build with AI: Claude Opus 4.8 lands, GitHub Copilot moves to token-metered AI Credits on June 1, the MCP next-spec RC locks a stateless protocol core, OpenAI Codex becomes an autonomous Goal-Mode runtime, Windsurf bundles Devin and raises prices, and the open-weight coding race tightens with Kimi K2.6 and GLM-5.1.
Read the full version with code samples, diagrams, and architecture details: This Week in AI Dev: Claude Opus 4.8, Copilot Goes Token-Metered, MCP's Stateless Next Spec (Week 23 of 2026)
More engineering notes: rohitraj.tech/en/notes
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