OpenCode 1.18.10

Released Jul 30, 2026 · official source

Safe to upgrade? Looks safe

2 bug/regression-labelled issues opened in the 45h after release (0 regression-flagged, 0 mention v1.18.10 in title). Normalised score 3.2.

Issues counted

#39902 Runtime MCP mutations can return before tool registry reconciliation (bug)
#39736 tui: undo fails for admitted message after interrupt (bug)

How this is computed

Breaking-change highlights

Repair malformed saved tabs so broken tab state no longer persists across launches. (@OpeOginni)

Auto-extracted lines mentioning breaking/deprecated/removed/migrate. Always read the full notes.

Changelog: v1.18.10

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)