OpenAI Codex CLI vrust-v0.91.0

January 25, 2026

Summary

Chores - Reduced the maximum allowed number of sub-agents to 6 to tighten resource usage and guardrails in agent fan-out behavior (9861) Changelog Full Changelog: https://github.com/openai/codex/co...

Release Notes

Chores - Reduced the maximum allowed number of sub-agents to 6 to tighten resource usage and guardrails in agent fan-out behavior (9861) Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.90.0...rust-v0.91.0 - 9861 chore: half max number of sub-agents @jif-oai

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