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Codex: rust-v0.84.0 Release

Release date:

January 15, 2026

Previous version:

rust-v0.83.0 (released January 15, 2026)

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Release Notes Published

New Features

Extend the Rust protocol/types to include additional metadata on text elements, enabling richer client rendering and schema evolution (#9235)

Chores

Reduce flaky Rust release pipelines (notably on Windows) by increasing the release build job timeout (#9242)

Changelog

Full Changelog: https://github.com/openai/codex/compare/rust-v0.83.0...rust-v0.84.0

#9242 fix: increase timeout for release builds from 30 to 60 minutes @bolinfest
#9235 Add text element metadata to types @charley-oai