v1.18.17

anomalyco/opencodev1.18.17Aug 12, 2026by opencode-agent[bot]

AI Summary

This release includes several core bugfixes regarding session management, provider support, and sampling defaults, alongside desktop UI improvements and terminology updates.

Key Highlights

Enhanced session compaction and added jitter to automatic retries to reduce storms
Added MERGE Gateway reasoning variants and enabled PDF attachments for GitHub Copilot models
Applied correct sampling defaults for DeepSeek V4 Flash
Updated Chinese developer terminology to use widely recognized translations

New Features

Added MERGE Gateway reasoning variants
Enabled PDF attachments for GitHub Copilot models

Full Release Notes

## Core

### Bugfixes

- Made session compaction keep complete recent turns and produce clearer summaries for smaller models.
- Added MERGE Gateway reasoning variants so those model options work correctly. (@MatthewFeroz)
- Capped automatic session retries and added jitter to reduce repeated retry storms.
- Enabled PDF attachments for GitHub Copilot models that advertise PDF vision support. (@stevenao)
- Applied the correct sampling defaults to DeepSeek V4 Flash on supported providers.
- Routed all Muse family models to the correct Meta system prompt. (@mreso)

## Desktop

### Bugfixes

- Updated Chinese developer terminology to use more widely recognized translations.
- Used the server's current default model instead of stale local config when choosing the default model.

**Thank you to 6 community contributors:**
- @mreso:
  - fix(session): route all Muse family models to the Meta system prompt (#41581)
- @OpeOginni:
  - fix(ui): correct OC-2 weak icon color (#41504)
- @peculiarnewbie:
  - feat(console): add go usage endpoint (#16513)
- @stevenao:
  - fix(opencode): detect Copilot PDF input support (#41522)
- @MatthewFeroz:
  - fix(provider): add Merge Gateway reasoning variants (#41867)
- @skyzhao1223:
  - docs: fix broken DigitalOcean and Daytona links (#42048)
  - docs: fix provider display name and PAT typos (#42034)