This week in Codex · May 24, 2026
OpenAI Codex CLI: Three Stable Releases and Two Alpha Builds Drop This Week
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OpenAI shipped Codex CLI stable releases 0.134.0, 0.135.0, and two alpha builds toward 0.136.0 in rapid succession. Highlights include a new `codex doctor` diagnostics command, searchable local conversation history, Vim text-object editing in the TUI, named permission profiles, and improved MCP setup with per-server environment targeting and OAuth support. Legacy profile configs are now rejected with migration guidance, so any team still using old profile formats should migrate immediately before upgrading.
Claude Code & CLI
Codex CLI 0.135.0: codex doctor diagnostics, Vim text-objects, and remote /status details
- Release 0.135.0 ships a richer `codex doctor` command that reports environment, Git, terminal, app-server, and thread inventory data useful for support cases.
- The TUI gains Vim text-object editing, improved word and line-end motion, a configurable interrupt-turn binding, and a `/status` command that shows remote connection details and server version when connected over a remote transport.
Codex CLI 0.134.0: conversation history search, unified --profile flag, and MCP OAuth support
- Release 0.134.0 adds case-insensitive full-text search across local conversation history with result previews.
- The `--profile` flag is now the single canonical profile selector across CLI, TUI, and sandbox flows, and legacy profile configs are rejected with migration guidance; MCP setup gains per-server environment targeting and OAuth options for streamable HTTP servers.
Codex CLI 0.136.0-alpha.2 preview available for early testing
- The second alpha toward 0.136.0 is available on GitHub for developers who want to test pre-release changes before the stable cut.
Codex CLI 0.136.0-alpha.1 opens the next release cycle
- The first alpha for the 0.136.0 cycle landed on GitHub, marking the start of the next batch of pre-release work.
MCP Ecosystem
Codex CLI 0.134.0 adds per-server MCP environment targeting and OAuth for HTTP servers
- The 0.134.0 release improves MCP server configuration by allowing per-server environment variable targeting and adds OAuth authentication support for streamable HTTP MCP servers.
- Connector tool schemas are also more reliable, with local $ref/$defs structures now preserved correctly.
Action Items
Immediate
- Migrate any legacy profile configs before upgrading to 0.134.0 or later: the CLI now rejects old formats and provides migration guidance at runtime.
- Update to Codex CLI 0.135.0 stable to gain the `codex doctor` diagnostics command, which is the new first step for filing support cases.
- If you use MCP servers that require authentication, review the new per-server environment targeting and OAuth options introduced in 0.134.0.
- Opt in to the 0.136.0-alpha.2 pre-release build if you want to surface issues before the next stable cut and provide feedback to the OpenAI Codex team.
All Resources
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