Release v0.2.1: support remote input, safe updates and high-DPI windows

README.md

@@ -36,6 +36,36 @@ combinations are intercepted. Unassigned shortcuts and simulated copy/paste pass
 Choose another shortcut or exit KSwitcher to restore the original action. Windows protects
 Ctrl+Alt+Delete and Win+L; these cannot be assigned.
 
+Keyboard and mouse input forwarded by Microsoft Mouse Without Borders follows the same input
+path as a local keyboard/mouse, including shortcuts, recent-word conversion and snippets.
+KSwitcher marks its own generated input so copy/paste, selection, modifier releases and shell-mask
+keys cannot trigger recursive commands or overwrite the recorded typing run. Other injected input
+is accepted, including key-up events and VK-only keyboard events. Unicode packets do not provide
+physical key positions and therefore reset recent-word tracking; selection conversion still works.
+
+### Updates
+
+Select **Update** in the tray menu to check the stable Releases of
+[this repository](https://gitea.hrynco.com/hrynco/hrynco-kswitcher/releases).
+A startup check also reports an available version, but never installs it automatically.
+Confirm the offered version to download and install it. The updater uses the existing
+`KSwitcher-win-x64.zip` and `SHA256SUMS.txt` assets, checks the checksum, package contents, x64
+executable identity and version, then closes and restarts KSwitcher. Downloads and staging happen
+before the application exits. If replacement or startup fails, it restores the previous files;
+if recovery itself fails, it reports the retained backup directory.
+
+Saved settings and clipboard history in `data/` or the local-app-data fallback are preserved.
+Existing dictionary files are preserved too; missing dictionary files are installed. Save settings
+edits before updating. The installation directory must be writable at KSwitcher's current privilege
+level. A blocked network request, incomplete release or checksum mismatch leaves the running version
+intact and is reported when Update is selected. Startup network failures remain non-interactive.
+The helper uses Windows' built-in Windows PowerShell 5.1; no additional runtime is installed.
+
+Settings and the other utility windows use the destination monitor's DPI for their initial frame,
+controls and fonts. They can be resized, stay within a remaining monitor's work area after display
+changes, and provide scrollbars when their content does not fit. Tab navigation scrolls the focused
+field into view; Shift+wheel scrolls horizontally.
+
 ## Implemented
 
 - Installed Windows keyboard layouts, configurable cycle/order and direct shortcuts; IMEs are switch-only.
@@ -114,10 +144,8 @@ This is a working native implementation, not a claim of complete UI/release pari
 
 - UI currently uses English and the native Windows control appearance. [Typlo](https://github.com/bitcodepro/Typlo)'s ten-language UI and
   explicit light/dark theme selector are not yet ported.
-- Automatic release download/replacement is not enabled. KSwitcher has no configured release feed;
-  using [Typlo](https://github.com/bitcodepro/Typlo)'s feed would install the wrong application. Updates are manual.
 - No import of old encrypted clipboard history. Export/import applies to settings.
-- The clipboard popup is fixed-size with per-monitor DPI scaling; PNG/DIB previews use Windows WIC/GDI.
+- The clipboard popup uses per-monitor DPI scaling and scrolls when space is limited; PNG/DIB previews use Windows WIC/GDI.
 
 The Windows focus/injection rules still apply: an unelevated process cannot edit an elevated app.
 Conversion is cancelled rather than pasting into a different window or replacing unverified recent text.
@@ -201,6 +229,18 @@ Run `./package.ps1 -PublishRelease` after building and testing to refresh the tr
 .\build.ps1 -Integration   # Interactive, isolated test editor; avoid input for about 10 seconds
 ```
 
+`-Test` also checks remote/own input separation, hidden Settings layout and scrolling, and updater
+package validation, file preservation and rollback in temporary fixture directories. It does not
+replace a running installation. Optional read-only network checks:
+
+```powershell
+.\build\KSwitcherInputTests.exe --update-check
+powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\tests\update.ps1 -Network
+```
+
+These validate the live release metadata/download/checksum in a temporary directory. They do not
+prove hardware interoperability between two laptops or a physical monitor-disconnection sequence.
+
 The interactive test requires installed English-US and Russian layouts. It opens its own editor,
 tests real copy/paste, undo, repeat conversion, recent-input verification and snippet cursor placement,
 then restores the clipboard. Test data is stored in its own temporary directory. It never sends messages