OpenAI Codex CLI — May 2026 Releases

7 releases in May 2026.

What's new in OpenAI Codex CLI, May 2026

Codex CLI adds Vim mode, goals on by default, codex doctor and conversation search

OpenAI Codex CLI added modal Vim editing, on-by-default goals and new diagnostics in May 2026. Seven releases shipped, from rust-v0.129.0 to rust-v0.135.0. The TUI composer gained Vim editing with /vim (text objects arrived later in the month), plus a redesigned resume/fork picker, raw scrollback mode, /ide context injection and a workspace-aware /diff. Goals became enabled by default in rust-v0.133.0, and goal continuations now stop at usage limits instead of looping.

Other changes: codex doctor for support diagnostics, search across local conversation history, and --profile as the primary profile selector. codex remote-control was added for headless, remotely controllable app-servers. MCP setup gained per-server environment targeting and OAuth options for streamable HTTP servers, and read-only MCP tools marked readOnlyHint can run concurrently. The Python SDK gained authentication flows and Sandbox presets. Remaining fixes covered tmux, Zellij, macOS and Windows terminal behavior and Windows sandbox hardening.

  • Modal Vim editing in the composer with /vim; text-object editing and a configurable interrupt-turn binding followed (v0.129.0, v0.135.0)
  • Goals enabled by default with dedicated storage; continuations stop at usage limits or repeated blockers (v0.133.0, v0.132.0)
  • codex doctor reports runtime, auth, terminal, network and config diagnostics, expanded with Git and thread inventory (v0.131.0, v0.135.0)
  • Search across local conversation history with case-insensitive matches and previews (v0.134.0)
  • -profile becomes the primary profile selector; /permissions understands named permission profiles (v0.134.0, v0.135.0)
  • MCP: per-server environment targeting, OAuth for streamable HTTP servers, concurrent read-only tools (v0.134.0)

Upgrading from rust-v0.128.0? See every change through rust-v0.135.0.

OpenAI Codex CLI full changelog