AIDotNet/OpenCowork 1.3.9 on GitHub

[1.3.9] - 2026-08-14

Added inline file diffs for Write/Edit tool results in chat, including snapshot-backed previews and syntax-highlighted mutation cards.
Added live sub-agent grouping in the CLI transcript (queued/running/completed, activity, tokens, model, elapsed) and matching desktop presentation phases.
Added the OpenCode Zen provider preset (opencode.ai/zen) with GPT 5.6 Terra/Luna, GPT 5.5, Claude Opus/Sonnet 5, Grok 4.6, Qwen3.7 Max, DeepSeek V4, GLM 5.2, MiniMax M3, and Kimi models.
Added shared ACP session-mode tool catalogs so the lead stays orchestration-only while sub-agents inherit the full implementation tool set and run in code mode.
Added Native Worker AgentRuntimeToolError so recoverable tool failures become model-safe <system-remind> text instead of AOT resource keys such as IO_PathNotFound_Path.
Added chat home insight copy, a hover-card titlebar mode switch with keyboard shortcuts, and motion helpers for popovers and preview rails.

Refreshed chat presentation (tool cards, thinking blocks, skills menu, input area, workspace sidebar) around disclosure, diffs, and plan review.
Bounded provider "context window exceeded" recovery to two overflow compressions per run so a misconfigured window cannot loop forever.
Treated Home as project-scoped when a project is already selected, so new sessions from the home picker inherit the project.
Removed the unused renderer prompt-optimizer module.

Fixed Windows ARM CI npm ci failing on hung Electron downloads by caching the binary, retrying install, and falling back to the npmmirror already used by electron-builder.
Fixed Native Worker tool failures leaking framework resource keys to the model after AOT publish (UseSystemResourceKeys).