Agent Breaking Changes_

← OpenCode

OpenCode v1.18.28

2026-09-04 · official notes

Summary

• Improvements
• Send the session ID as GitHub Copilot's interaction header to improve request tracking across a session.
• Use the desktop client ID during OpenCode account device authentication.

Full notes

## Core

### Improvements

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

## Desktop

### Bugfixes

- Use the desktop client ID during OpenCode account device authentication.
- Increase the open-in app icon size for better visibility.

**Thank you to 1 community contributor:**
- @MVS-source:
  - docs: add Eden AI to the providers list (#43386)