September 29, 2026
A specific Codex alpha can now be installed: the installer accepts 0.160.0-alpha.6
Codex 0.160.0-alpha.6 was released on Sep 29. The official installer for macOS and Linux accepts a version via the --release parameter.
Previously, the Codex installer used the latest channel. Now --release specifies an exact release, while CODEX_RELEASE remains a fallback option.
Installation command. On macOS and Linux, request the desired alpha with `curl -fsSL https://chatgpt.com/codex/install.sh | sh -s -- --release 0.160.0-alpha.6`.
The release points to commit 2399dce and contains 2 files.
