OpenAI Codex updates by Nextexhttps://www.nextex.ai/radar/codex/ AI Change Logs for All. Official release sources with clear evidence.en Thu, 08 Oct 2026 03:32:08 GMT Codex updates model defaults and MCP sign-inhttps://github.com/openai/codex/releases/tag/rust-v0.161.0codex-4a0d05df209be99eWed, 07 Oct 2026 00:00:00 GMTCodex 0.161.0 changes the default model and adds terminal sign-in for MCP servers. Permission handling also receives fixes.