OpenAI Codex CLI rust-v0.16.0

OpenAI Codex CLI rust-v0.16.0 was released on .

Summary

- Small fix for an error message around capacity: https://github.com/openai/codex/pull/1947 - Though the more significant upgrade today is to 0.15.0: https://github.com/openai/codex/releases/rust-...

Release Context

  • This was the 15th OpenAI Codex CLI release of 2025 tracked by Havoptic.
  • It shipped the same day as OpenAI Codex CLI rust-v0.15.0 (August 7, 2025).

Shipped around the same time

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

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