Codex news

By Ivo Donker · October 26, 2026 — created with AI assistance (writer: DeepSeek V4.1 Flash; critic: gpt-oss-120b via Groq)

Codex: ReviewInstall & set upNewsTechnical tutorial

All the news about Codex from our daily newsletter: 43 items, newest first. Headlines come from the source; the Dutch commentary is machine-written.

Monday, October 26, 2026

• Stop wasting tokens with Codex. Why use expensive AI models for every task? Learn how AI routers, smart model selection, caching, and contex · X · 2026-10-23
  This item covers cost savings in AI through smart model choice and caching, which helps lower API costs as an indie developer. · newsletter

Monday, October 19, 2026

• I had 1,270 agent sessions sitting in ~/.claude, ~/.codex and ~/.pi that’s an eval set: my corrections to the agent are the test cases turne · X · 2026-10-16
  This describes converting earlier agent sessions and corrections into a test set, which helps when evaluating AI behaviour. · newsletter

Saturday, October 17, 2026

• I had 1,270 agent sessions sitting in ~/.claude, ~/.codex and ~/.pi that’s an eval set: my corrections to the agent are the test cases turne · X · 2026-10-16
  Past agent sessions convert into an evaluation set, which helps indie developers use local corrections as test cases. · newsletter

Tuesday, October 6, 2026

• OpenAI textGrain: API customers worldwide can enable a text watermark from 5 Oct (off by default). In the coming weeks, ChatGPT and Codex text in the EU will automatically receive an invisible watermark. (24, 25) · newsletter
• Codex 0.160.1 is a backport for Windows remote MCP. Alpha continued to 0.162.0-alpha.16. (4, 5, 6) · newsletter

Monday, October 5, 2026

• Codex alpha 0.162.0-alpha.11 → .12 → .13 → .14. Three alphas in one day: .12 (4 Oct ~08:01 CEST), .13 (~17:55 CEST), .14 (5 Oct ~04:20 CEST). The release page only says "Release 0.162.0-alpha.14", without notes. Production latest remains 0.160.0. Not for the Mini. (1, 2, 3) · newsletter

Sunday, October 4, 2026

• Codex CLI: production still 0.160.0; alpha 0.162.0-alpha.9 → 0.162.0-alpha.11 (via .10; 3 Oct ~12:11 - 22:30 CEST) - not for the Mini. (4, 5) · newsletter

Saturday, October 3, 2026

• OpenClaw latest 2026.9.7 → 2026.9.8 (3 Oct ~05:21 CEST): GPT-6.1 Sol as OpenAI provider choice (accounts with access); delegated results stay with the requesting conversation; less Codex-fleet memory; update/Windows-startup repairs; Control UI tab-retention + session-assign fix. (1, 2, 3) · newsletter
• Codex CLI: production stable 0.160.0; alpha 0.162.0-alpha.3 → 0.162.0-alpha.9 (3 Oct ~03:24–03:44 CEST) - not for the Mini. (10, 11, 12) · newsletter

Friday, October 2, 2026

• Codex CLI rust-v0.160.0 (1 Oct ~22:19 CEST): command-center “Show more”; Linux X11 middle-click paste; workspace defaults outside project; opt-in Guardian review history/handoffs; reconnect queue + Windows sandbox/SQLite fixes. Alpha 0.162.0-alpha.3 (2 Oct ~05:38–05:53 CEST) — not for the Mini. Production = 0.160.0. (4, 5) · newsletter

Thursday, October 1, 2026

• Codex CLI rust-v0.159.3 (30 Sept ~00:57 CEST 1 Oct): account-security setup reminders for ChatGPT-signed-in sessions. Alpha 0.161.0-alpha.7 (1 Oct ~06:07 CEST) — not for the Mini. Production = 0.159.3 (Sol remains default since 0.159.1). (3, 4) · newsletter
• GPT-6.1 Sol (OpenAI index): near-Astra claims at ~1/5 the token price; API gpt-6.1-sol; ChatGPT Work + Codex; not yet in Chat; $2/$10, cache $0.10/MTok. Ultrafast "coming days". (5) · newsletter

Tuesday, September 29, 2026

• Codex stable → 0.158.0 (npm 2026-09-28T05:12Z; GH rust-v0.158.0): MCP OAuth client secrets, copy-on-select + right-click paste, exec-server WebSocket bearer tokens, sandbox/Git-root fixes. Alpha npm 0.160.0-alpha.3 (also 0.159.0-alpha.13 / 0.160.0-alpha.2). Production = 0.158.0; alpha not for Mini. (6, 7, 7b) · newsletter
• Security: no new CVE number overnight in this toolset. Carry: Heapjack+Overpatch (Desktop ≥26.818.21641, CLI ≥0.149.0 - included in 0.158.0); Plugin4Shell; GitSpawn. (21, 22, 57) · newsletter

Sunday, September 27, 2026

• Codex alpha → 0.159 line (npm alpha tag 0.159.0-alpha.7, 2026-09-27T01:35:35Z; GH rust-v0.159.0-alpha.8 04:48Z + 0.158.0-alpha.15.2). Stable/latest remains 0.157.1. Production = 0.157.1; alpha not for Mini. (6, 7, 7b) · newsletter
• Security: no new CVE number overnight. Carry: Heapjack+Overpatch (Desktop ≥26.818.21641, CLI ≥0.149.0 - included in 0.157.1); Plugin4Shell (Claude ≥2.1.179, Codex ≥0.146.0). (21, 22) · newsletter

Saturday, September 26, 2026

• Codex stable/latest 0.157.0 → 0.157.1 (npm 2026-09-26T01:06:57Z; GH rust-v0.157.1). Release body: chores only (empty PR index / tag-comparison 404); full changelog rust-v0.157.0...rust-v0.157.1. Alpha dist-tag 0.158.0-alpha.13 → 0.158.0-alpha.15.1 (GH also 0.159.0-alpha.1–3 - not on Mini). Production = 0.157.1. (6, 7) · newsletter
• Security: no new CVE number overnight. Carry: Heapjack+Overpatch (Desktop ≥26.818.21641, CLI ≥0.149.0 - included in 0.157.1); Plugin4Shell (Claude ≥2.1.179, Codex ≥0.146.0). (21, 22) · newsletter

Friday, September 25, 2026

• Codex stable/latest 0.156.1 → 0.157.0 (npm 2026-09-25T02:35Z; GH rust-v0.157.0). New: GPT-6 Sol/Luna (+ Bedrock); fullscreen transcripts default; automatic background-server startup; f fork-shortcut; /import in remote/daemon sessions; TUI rendering; network-policy hardening over HTTP/WS. Alpha 0.158.0-alpha.6 → 0.158.0-alpha.13 (not on Mini). Production = 0.157.0. (6, 7) · newsletter
• Security: no new CVE number overnight. OpenClaw macOS HOLD closed via rebuild (product advisory). Carry: Heapjack+Overpatch (Desktop ≥26.818.21641, CLI ≥0.149.0 - included in 0.157.0); Plugin4Shell (Claude ≥2.1.179, Codex ≥0.146.0). (21, 22, 2) · newsletter

Thursday, September 24, 2026

• Codex: stable/latest remains 0.156.1. Alpha 0.157.0-alpha.11 → 0.158.0-alpha.6 (npm ~2026-09-23T23:53Z; GH rust-v0.158.0-alpha.6, empty release body). Production = 0.156.1; alpha not on the Mini. (6, 7) · newsletter
• Security carry (no new CVE number overnight): Heapjack + Overpatch (Desktop ≥26.818.21641, CLI ≥0.149.0 - included in 0.156.1); Plugin4Shell (Claude ≥2.1.179, Codex ≥0.146.0; Copilot no client fix; Gemini CLI → Antigravity). OpenClaw macOS 9.6 crash is a product advisory, not a sandbox CVE. (18, 19, 2) · newsletter

Wednesday, September 23, 2026

• Codex: stable/latest 0.155.1 → 0.156.1 (npm 2026-09-23T02:45:25Z; GitHub tag rust-v0.156.1 2026-09-23T02:41:36Z). Hotfix: GPT-6 Sol and GPT-6 Luna in the model catalogue; rate-limit switch recommends Luna. Alpha 0.157.0-alpha.5 → 0.157.0-alpha.11 (npm 2026-09-23T05:01:29Z). Production = 0.156.1; alpha not on the Mini. (5, 6) · newsletter
• Security carry (no new CVE number in this toolset overnight): Heapjack + Overpatch (Codex Desktop ≥26.818.21641, CLI ≥0.149.0 - included in 0.156.1); Plugin4Shell (Claude ≥2.1.179, Codex ≥0.146.0; Copilot no client fix; Gemini CLI unpatched → Antigravity). (19, 20) · newsletter

Sunday, September 20, 2026

• Codex alpha: 0.156.0-alpha.7 → 0.156.0-alpha.9 (~20 Sept 00:28 UTC); stable/latest remains 0.155.1. (3) · newsletter

Saturday, September 19, 2026

• Codex: latest 0.155.1 (was 0.155.0, 18 Sept ~20:09 UTC); alpha 0.156.0-alpha.7. (9) · newsletter

Friday, September 18, 2026

• Codex: latest 0.155.0 (was 0.154.0, 17 Sept ~23:19 UTC); alpha 0.156.0-alpha.2. (6) · newsletter

Thursday, September 17, 2026

• Codex alpha → 0.155.0-alpha.16 (17 Sept ~04:43 UTC); stable remains 0.154.0. (7) · newsletter

Wednesday, September 16, 2026

• A new WhatsApp Business MCP server lets developers use AI coding agents like Claude, Cursor, Codex, and ChatGPT to handle setup, messaging t · X · 2026-09-15 · newsletter
• Codex alpha → 0.155.0-alpha.10 (16 Sept ~04:26 UTC); stable remains 0.154.0. (7) · newsletter

Tuesday, September 15, 2026

• Minor channel bumps: n8n beta/rc/next → 2.39.5 (stable remains 2.38.7); Codex alpha → 0.155.0-alpha.6 (stable 0.154.0). (9, 10) · newsletter

Monday, September 14, 2026

• Hermes / n8n / Codex / Antigravity / MCP: no overnight bump — Hermes v2026.9.11 / 0.21.2, n8n 2.38.7 / beta 2.39.4, Codex stable 0.154.0 (alpha 0.155.0-alpha.3.10), Antigravity CLI 1.2.2, MCP SDK TS 1.30.0, @ai-sdk/mcp 2.0.49. (14, 15, 16, 17, 18, 19) · newsletter

Sunday, September 13, 2026

• Hermes / n8n / Codex: no overnight bump — Hermes v2026.9.11 / 0.21.2, n8n 2.38.7 / beta 2.39.4, Codex stable 0.154.0. (11, 12, 13) · newsletter

Saturday, September 12, 2026

• Codex CLI: still stable at 0.154.0. Overnight only 0.155.0-alpha.3.10 (and earlier 3.x alphas) — not as a prod pin. (11, 12) · newsletter

Friday, September 11, 2026

• Codex CLI: still stable at 0.154.0. Overnight only 0.155.0-alpha.3 prereleases — not as a prod pin. (10, 11) · newsletter

Thursday, September 10, 2026

• ChatGPT Voice → Astra/GPT-5.6 (9 Sept Help Center): Voice may escalate; Instant/Medium/High Voice levels deprecated. Deep Research in ChatGPT Work/Codex (@Deep Research). (8) · newsletter

Wednesday, September 9, 2026

• Cursor ↔ OpenAI cutoff remains 12 November. Astra will never come to Cursor; in OpenClaw via API/Codex since 2026.9.2. (12, 13) · newsletter

Tuesday, September 8, 2026

• Astra is now on Plus, but not in Chat. Pro/Enterprise/Business Premium got Work + Codex + API on 4 Sept. Plus ($20) gets Astra in Work and Codex; in the regular chat window GPT-5.6 Sol remains the top option until you have Pro. No free tier. (5, 6, 7) · newsletter
• Cursor: self-host the runner, OpenAI models until 12 Nov. Changelog 2 Sept. OpenAI Help Center: BYOK only for local Chat/Agent, not Tab/Auto/Cloud/CLI. The Codex extension is the escape hatch. (13, 14, 15) · newsletter

Thursday, August 27, 2026

• MCP: decision-time guidance so Codex and Cursor follow the contract (conformance 15/15) · GitHub · 2026-08-27
  MCP offers decision guidelines so that Codex and Cursor achieve contractual conformity, which helps indie‑developers with model‑compliance. · newsletter

Tuesday, August 25, 2026

• Introducing the Conductor MCP! Your Claude, Codex, Cursor agents can now use Conductor alongside your humans. It comes with all the tools yo · X · 2026-08-24
  This introduces Conductor MCP, which lets Claude, Codex and Cursor agents work together with humans, something indie developers can deploy in their agent workflows. · newsletter

Monday, August 24, 2026

• turn ChatGPT into unlimited Codex ultra mode (on Windows lol) I built an MCP connector for ChatGPT with sub-agents. got a little creative an · X · 2026-08-22
  An MCP‑connector turns ChatGPT into an unlimited Codex‑mode with sub‑agents, giving indie‑developers extra functionality. · newsletter
• Meet Bezalel Bezalel is a capability plane for your agents (claude, codex, OC, hermes, etc) one MCP gives your agent: 💻 computer ⌛️ sandbox · X · 2026-08-22
  Bezalel offers a capability‑plane for agents with computer and sandbox resources, so that indie‑developers can run code safely. · newsletter