What does this release signal mean?

OpenAI published openai/codex rust-v0.138.0-alpha.2 (openai/codex). This release signal is evidence of what shipped, changed, or was packaged for users. High-signal details: Specialized Codex alpha for Rust · 0.138.0-alpha.2 Repository: openai/codex Tag: rust-v0.138.0-alpha.2 Published: 2026-06-04T17:26:28Z Prerelease: yes Release notes: Release 0.138.0-alpha.2. onlylabs links this event to 1 captured evidence page and 6 related release signals.