Agent Breaking Changes_

← OpenCode

OpenCode v1.18.30

2026-09-09 · official notes

Summary

• Improvements
• Added the Astra system prompt for GPT-6 models.
• Preserved Bedrock DeepSeek model IDs, including ARN-based IDs, so they resolve correctly. (@YeEmrick)

Full notes

## Core
### Improvements
- Added the Astra system prompt for GPT-6 models.

### Bugfixes
- Preserved Bedrock DeepSeek model IDs, including ARN-based IDs, so they resolve correctly. (@YeEmrick)
- Updated the Azure provider SDK to pick up compatibility fixes.
- Updated the OpenAI provider SDK to pick up compatibility fixes.
- Added reasoning effort variants for supported GitLab GPT and Claude models. (@far-ouq)

**Thank you to 3 community contributors:**
- @heimoshuiyu:
  - fix(console): openai usage normalization and tier threshold config (#47342)
- @far-ouq:
  - fix(opencode): add GitLab reasoning variants (#47306)
- @YeEmrick:
  - fix: preserve Bedrock DeepSeek model ids (#34441)