OpenAI's Codex adds GPT-6-Astra to model picker and Bedrock, alongside experimental worktr

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Sep 9, 2026 23:18 UTC github openai/codex

OpenAI's Codex adds GPT-6-Astra to model picker and Bedrock, alongside experimental worktree support and inline Q&A.

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openai codex just dropped rust-v0.154.0 and it looks like gpt-6-astra is now available in the model picker and amazon bedrock! pretty big if you're building with codex.

new codex release includes experimental worktree support for isolated checkouts and inline Q&A. also, gpt-6-astra integration with bedrock. 👀

openai/codex release: rust-v0.154.0 name: 0.154.0 published: 2026-09-09T22:35:38Z url: https://github.com/openai/codex/releases/tag/rust-v0.154.0 ## New Features - GPT-6-Astra is now available in the model picker and Amazon Bedrock catalogs. (#42879, #42619) - Experimental worktree support lets you create isolated checkouts for new or forked sessions using `--worktree` or `/worktree`, then browse and resume them. (#42652, #43069, #43120, #43286) - Answer questions inline while Codex continues working, using suggested choices or custom text without losing your main draft. (#42891, #42894, #42897) - Windows sessions can now share a background Codex server, with daemon lifecycle commands and managed updates. (#42405, #42392) - Vim editing gains `R` replace mode with undo and dot-repeat, plus more reliable Escape handling in legacy terminals. (#42194, #42584) - Copying responses preserves formatting in rich-text apps, and `/copy` can copy status output or individual session fields. (#42847, #43055) ## Bug Fixes - Existing sessions pick up newly installed plugin tools and refresh skills and hooks after external plugin upgrades or rollbacks. (#42284, #42593, #42990) - MCP connections coordinate OAuth token refreshes and surface login challenges when refresh fails, without automatically replaying rejected tool calls. (#42413, #42552) - Startup avoids running workspace-controlled helpers before trust is established, and the macOS sandbox blocks terminal input injection. (#42324, #42590) - Remote resume and fork operations preserve saved permissions; fresh sessions and forks respect server model defaults unless explicitly overridden. (#43330, #43177, #43355) - Resuming a conversation open in another app now shows a read-only transcript with a retry option while preserving your draft. (#43253) - Automatic approval reviews better preserve authorization context through compaction and reject approvals invalidated by new user instructions or answers. (#42844, #42852, #43442)