iOfficeAI/AionUi v1.9.20 on GitHub

Highlights

Codex and other ACP agents no longer show a false "process exited unexpectedly" error when a conversation ends normally — the process exit is now correctly recognized as a clean idle shutdown.
Long gaps between stream events during tool-call execution (common with Codex) no longer trigger spurious idle-finish warnings or duplicate finish events.
Switching permission mode before sending your first message no longer throws a "Cannot set mode in idle" error — the mode change is silently deferred and applied on first activation.
Agents like qwen-code that advertise their available modes during initialization now show the full mode list in the selector.

Cargo, Go, Deno, and ~/.local/bin (uv/pipx) are now included in the Windows enhanced PATH, matching macOS/Linux behavior — CLI tools in those locations are now discoverable by ACP auto-detection.
Windows users with Node.js below v20 can now use Codex and Claude Code backends without being blocked — those backends run via bundled bun, not system Node.

Fixed: Aion CLI mode on Windows now correctly finds the officecli binary — it was previously missing from the environment passed to the aionrs process.

Fixed a white screen on app refresh after clicking "New Chat" in the packaged Electron app. A URL corruption bug under HashRouter caused the real pathname to be overwritten, resulting in ERR_FILE_NOT_FOUND on reload.

fix(guid): use navigate() to clear resetAssistant state so HashRouter URL stays intact by @kaizhou-lab in #2583
fix(acp): preserve top-level modes from initialize response by @kaizhou-lab in #2598
fix(acp): defer setMode/setModel in idle state and sync reassertConfig on start by @zhuqingyv in #2595
test(e2e): add PRDs and E2E specs for ACP conversations by @TCP404 in #2591
fix(acp): suppress false crash report on idle process exit and idle-timer misfire during prompt by @TCP404 in #2619
fix(shellEnv): add missing Windows extra tool paths to align with macOS/Linux by @piorpua in #2618
fix(aionrs): use getEnhancedEnv() when spawning aionrs binary by @piorpua in #2610
fix(acp): remove stale Node.js version checks for bundled-bun backends by @piorpua in #2622
feat(skill): add pr-ship end-to-end PR lifecycle skill by @TCP404 in #2623
chore: bump version to 1.9.20 by @piorpua in #2624

Full Changelog: v1.9.19...v1.9.20