Agent Breaking Changes_

← OpenCode

OpenCode v1.18.10

2026-07-30 · official notes

Summary

• Discover available Modal models automatically. (@devennavani)
• Improvements
• Prevent adding the same attachment more than once.

Full notes

## Core
- Discover available Modal models automatically. (@devennavani)

## Desktop
### Improvements
- Prevent adding the same attachment more than once.
- Always show the new session button.
- Improve toast notifications with better stacking, dismissal, and mobile layout.
- Refine tab hover, active, and overflow states.

### Bugfixes
- Repair malformed saved tabs so broken tab state no longer persists across launches. (@OpeOginni)
- Hide the model variant selector until model data finishes loading.
- Preserve the custom agent picker for existing users.

**Thank you to 3 community contributors:**
- @lakshyaag-tavily:
  - docs(ecosystem): add opencode-tavily plugin (#38709)
- @devennavani:
  - feat: discover Modal models (#39066)
- @OpeOginni:
  - fix(app): repair malformed persisted tabs (#39645)