Codex CLI adds parallel agents, voice control, enterprise controls and mid-run steering

Sep 29, 2026 · Issue 9 · 4 sources, 5 articles

OpenAI updated the open-source Codex CLI on 29–30 September: an interface built for long-running and parallel work, enterprise controls (0.158.0), then mid-run steering (0.159.0). According to a report in the style of The Decoder, some of the features existed before DevDay.

Who is affected and how

senior developer

Use mid-run steering so you don't have to restart long agent runs.

Sources

• OpenAI's Codex CLI Rebuilds the Terminal to Run Parallel Coding Agents | AlphaSignalalphasignal.ai · Sep 29, 2026
• OpenAI refreshes Codex CLI for voice and agent oversight; the underlying features predate DevDayopentools · Sep 29, 2026
• OpenAI Codex 0.158.0 Adds Enterprise Controls Alongside Faster Workflowsremio · Sep 29, 2026
• OpenAI Codex 0.160.0 Makes Reliability the Main Agent Featureremio.ai · Oct 2, 2026

Machine-generated summary based on the titles and excerpts of the source articles. The facts come from the linked article.