# v0.2.10

Follow-up patch release for v0.2.9 addressing auto-updater regressions, adding a command palette, infinite-scroll message history, and input polish.

## New Features

- Command palette — press Ctrl+K from the message input (or anywhere in the main window) to open a searchable dialog for navigating channels and triggering app actions (connect, disconnect, logout, profile, status, create/delete channel, saved servers, toggle users panel, check for updates, quit). Fuzzy matches against both the label and the underlying key so typing `ch` surfaces channel actions alongside `#channel` entries
- Scroll-to-load message history — scrolling to the top of a channel now fetches the next batch of older messages in the background (previously only the most recent 100 messages were available). Duplicate messages are filtered by ID, a per-channel guard prevents concurrent fetches, and the scroll position is preserved after the prepend so your reading position doesn't jump

## Bug Fixes

- Fix update progress dialog freezing / not repainting — progress callbacks now run on the UI thread so the download and extraction percentage actually updates while an update is in progress
- Fix pre-update backup failing when a Serilog-held log file is locked — `UpdateBackupService` now enumerates files manually, skips the `logs/` directory and `.log` files, and logs-and-continues on `IOException`/`UnauthorizedAccessException` instead of aborting the whole backup
- Simplify update progress dispatch — remove redundant `Application.Invoke` wrappers around progress updates that are already called from the UI thread (introduced while fixing the freeze above)
- Fix cursor position being reset to the start of the line when auto-completing commands in the CLI app — insertion point is now moved to the end of the completed text
- Fix notification sounds crashing or being silently dropped when several arrive in quick succession — playback is now serialized through a semaphore that's held for the duration of each sound (using `PlaybackFinished` with a 10s safety timeout) and always released in `finally`, so back-to-back notifications queue up and play in order instead of racing the underlying audio player (fixes #20)

## Refactoring

- Move search-dialog dispatch out of `MainWindow` into `AppOrchestrator` — `MainWindow` now just raises `OnSearchRequested`, keeping the view dumb and letting the orchestrator own navigation/action routing
- `ChatHub.GetChannelHistory` and `IChatService.GetChannelHistoryAsync` gain an additional `offset` parameter for paginated history loading (defaults to `0` — existing callers are unaffected)
- `ValidationConstants.MaxHistoryCount` raised from `100` to `200` so power users and paginated fetches can request larger batches; `DefaultHistoryCount` stays at `100`