Support for Go 1.25.1 (New Go Version Released August 2025)

[ignat980]

Updating to go 1.25.1 would be really useful.

ChatGPT 5 Instant says:

Hi OpenAI team, and thanks for maintaining this incredibly useful codex-universal Docker image!

I've noticed that the current setup supports up to Go 1.24.3 (via the CODEX_ENV_GO_VERSION variable), but Go 1.25 has since been released in August 2025 ([tip.golang.org][1], [DEV Community][2]). As of now, there doesn’t appear to be any issues or pull requests requesting support for Go 1.25 or 1.25.1—would it be possible to add it to the supported versions list?

Why this upgrade matters:

• Go 1.25 brings container-aware GOMAXPROCS (which respects cgroup CPU bandwidth limits and updates automatically) tip.golang.org.
• It includes several powerful experimental improvements—a redesigned garbage collector (GOEXPERIMENT=greenteagc), a modernized JSON implementation (GOEXPERIMENT=jsonv2), and more efficient debug info via DWARF 5 tip.golang.org, DEV Community.

Adding official support for Go 1.25.1 would help developers test and leverage these new features within the Codex environment.

Suggested steps:

1. Update Dockerfile or setup logic to install Go 1.25.1 when CODEX_ENV_GO_VERSION=1.25.1.
2. Optionally offer support for Go 1.25 or 1.25.x series.
3. Update documentation to reflect availability of the new Go version.

1: https://tip.golang.org/doc/go1.25 "Go 1.25 Release Notes"
2: https://dev.to/klaus82/go-125-the-container-native-release-5dfd "Go 1.25: The Container-Native Release"