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# Allow Codex OAuth model filtering to recognize integer GPT versions like `gpt-6`

2026-09-04 · v1.18.29, v1.18.28

## Improvements

- **Core:** Send the session ID as GitHub Copilot's interaction header to improve request tracking across a session.

## Fixes

- **Core:** Fixes issue of gpt-6-astra not showing up for openai subscription users
- **Desktop:** Use the desktop client ID during OpenCode account device authentication.
- **Desktop:** Increase the open-in app icon size for better visibility.

Released in [v1.18.29](https://github.com/anomalyco/opencode/releases/tag/v1.18.29), [v1.18.28](https://github.com/anomalyco/opencode/releases/tag/v1.18.28)

Newer: [Added the Astra system prompt for GPT-6 models](https://opencode.ai/changelog/v1.18.30) (v1.18.30)

Older: [Default provider header timeouts to five minutes so slow model startups fail less often](https://opencode.ai/changelog/v1.18.27) (v1.18.27)

[All updates](https://opencode.ai/changelog)

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