## New Features
- Added GPT-6-Astra to the Amazon Bedrock model picker for Mantle and Runtime global/US routes. (#42805)
## Bug Fixes
- Corrected GPT-6-Astra’s guidance for asynchronous clarification questions to use the supported tool and recognize that it accepts text only. (#42809)
## Changelog
Full Changelog: https://github.com/openai/codex/compare/rust-v0.153.2...rust-v0.153.3
- #42805 [0.153 hotfix] Add GPT-6-Astra to Amazon Bedrock catalogs @celia-oai
- #42809 [0.153 hotfix] Update Astra async-question guidance @rhan-oai