v1.15.0

anomalyco/opencodev1.15.0May 15, 2026by opencode-agent[bot]

AI Summary

This major release introduces an Effect-based core event system for more complete event delivery across sessions and integrations, along with desktop improvements and SDK bugfixes.

Key Highlights

Added Effect-based core event system for complete event delivery
Auto-hide menu bar on Linux and Windows
Fixed archived sessions being reprocessed
Restored missing event types in JavaScript SDK
Ignored invalid exports in custom tool modules instead of failing

New Features

Effect-based core event system
Auto-hide menu bar on desktop

Full Release Notes

## Core
### Improvements
- Added an Effect-based core event system for more complete event delivery across sessions and integrations.

### Bugfixes
- Ignored invalid exports in custom tool modules instead of failing tool loading.
- Ignored project instruction lookup errors so sessions keep loading when project instruction discovery fails.
- Fixed versioned event projector lookups so event replay uses the right handlers.

## Desktop
### Improvements
- Auto-hide the menu bar on Linux and Windows. (@shi-gg)

### Bugfixes
- Fixed archived sessions being reprocessed when their archive state did not change.

## SDK
### Bugfixes
- Restored missing event types in the JavaScript SDK, including session and message events.

**Thank you to 1 community contributor:**
- @shi-gg:
  - feat(desktop): auto-hide menu bar on Linux and Windows (#27618)