v1.4.0

Breaking Changes in SDK

Due to some performance issues we had to make a few breaking changes in our data model.

Diff metadata

The diffs contained in the metadata for the edit and patch tool will no longer contain a to and from field with full file contents. they will only contain a patch field with the unified diff

Additionally all snapshot diffs contained in user message and session diff will follow this format

UserMessage.variant

Before the user message had a variant field - it is now nested under model so userMessage.model.variant

Core

• Added OTLP observability export support.
• Fixed failed web fetches leaving stale timeouts behind.
• Improved opencode login transport error messages.
• Retried Alibaba provider rate-limit errors instead of failing immediately.
• Kept model variants scoped to the selected model.
• Added full HTTP proxy support.
• Fixed OpenRouter provider issues.
• Aligned GitHub Copilot Anthropic reasoning levels and removed incorrect Qwen variants.
• Reduced TypeScript LSP memory use by using the native project config. (@derekbar90)

TUI

• Added a keybinding option for "Switch model variant". (@ariane-emory)
• Added PDF drag and drop for attachments. (@gitpush-gitpaid)
• Added opencode run --dangerously-skip-permissions to auto-approve non-denied permission prompts.

Desktop

• Improved subagent sessions with clearer titles, navigation, and progress states.
• Moved auto-accept permissions into Settings.
• Showed full file names on attachment chips.

Thank you to 4 community contributors:

• @derekbar90:
  • fix(lsp): MEMORY LEAK: ensure typescript server uses native project config (#19953)
• @mchenco:
  • docs: update Cloudflare provider setup to reflect /connect prompt flow (#20589)
• @gitpush-gitpaid:
  • feat(opencode): Add PDF attachment Drag and Drop (#16926)
• @ariane-emory:
  • fix(tui): use sentence case for theme mode command palette items (#21192)
  • feat(tui): allow variant_list keybind for the "Switch model variant" command (#21185)