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Codex CLI

OpenAI · CLI

Codex CLI 0.142.0-alpha.3

0.142.0-alpha.2→0.142.0-alpha.3·June 19, 2026 at 2:16 AM UTC

Patch release with internal protocol updates, new subsystems for time handling and event processing, an environment variable rename, and removal of hierarchical agents documentation.

Changelog

  • [changed] Renamed the CODEX_TUI_ROUNDED environment variable to CODEX_TUI_ROUNDEDA.
  • [removed] Removed the section on hierarchical agents messaging and the child_agents_md feature flag from AGENTS.md documentation.

Under the hood

  • Added internal modules for v2 thread protocol handling, current time queries in the app server, core skills root loading, JSONL event output processing, and TUI token chart palette support.
  • Refactored data models, events, enums, and payloads across agent identity, MCP tool calls, thread management, patch approvals, and related server requests.

Upgrade notes

No manual steps required.

Older release← 0.142.0-alpha.2
All Codex CLI releases →

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