• Tech Dev NotesTech Dev Notes
Apps
  • Lookup
  • Compare
Market movement
  • Charts
  • Rankings
Visual proof
  • Screens
  • Store listings
  • Icons
Stacks and releases
  • Tech stacks
  • Tool releases
  • Developers
More
  • X feature flags
  • Grokipedia
  • Grok companions
  • Blog
  • Follow on X
Skip to content
ChartsRankingsMoversCompareLookupScreensTech stacksReleases

© 2026 Tech Dev Notes

RSSAboutAPIStatusSecurityPrivacyTermsSitemap@techdevnotes
Codex CLI

OpenAI · CLI

Codex CLI 0.147.0-alpha.1

0.146.0→0.147.0-alpha.1·July 29, 2026 at 10:17 AM UTC

Alpha pre-release (0.147.0-alpha.1): exec-server can exit when its parent stdin pipe closes, plus an MCP stack upgrade and related protocol/client groundwork.

Changelog

  • [new] codex exec-server accepts --exit-on-stdin-close so the process exits when the parent-owned standard-input pipe closes (useful when a supervisor owns the session lifetime).
  • [changed] MCP support moves onto rmcp 3.x (from 1.8), with broader client/server capability and result shapes for tools, prompts, resources, and related notifications.
  • [removed] The o1 model identifier is no longer bundled.
  • [changed] Shell completions (bash, fish, zsh) include the new exec-server flag.

Under the hood

  • MCP client work includes pagination helpers and a local stdio transport path, alongside CODEX_MCP_PROTOCOL_VERSION for protocol negotiation.
  • TUI gains an agent picker module; skills pick up render-observability hooks; debug-sandbox cloud config and external-agent session record handling continue to evolve.
  • Exec-server relay/protobuf noise-framing code is trimmed back.
  • V8 is bumped to 150.4.0; several transitive HTTP/TLS crates are dropped or replaced in the lockfile as part of the dependency refresh.
  • Thread-store and multi-agent config shapes, plugin summaries, and assorted approval/tool payload types are adjusted ahead of follow-on UI and API work.

content/

Browse captured content/

Same tree as codex-cli/latest/content for this version. Open the full browser for sidebar navigation between docs and other files.

Open content/ browser →

33 listed · 34 in tree · 18 under docs/

content/ browserNavigate docs, prompts, and root filesFolder index plus per-file pages with prev/next and a full file sidebar.
README.mdDocs3.3 KBCHANGELOG.mdDocs93 BAGENTS.mdDocs22 KBconfig.mdDocs351 Bdocs/agents_md.mdDocs126 Bdocs/authentication.mdDocs134 Bdocs/CLA.mdDocs2 KBdocs/codex-rs/bazel.mdDocs7.4 KBdocs/codex-rs/codex_mcp_interface.mdDocs6.8 KBdocs/codex-rs/protocol_v1.mdDocs9.5 KBdocs/config.mdDocs726 Bdocs/contributing.mdDocs6.2 KBView all 33 files in content/ browser →
Older release← 0.146.0Newer release→ 0.147.0-alpha.2
All Codex CLI releases →