2.2.0 — New documents and source editing

New Document and Markdown editing are here. Use New (Ctrl+N) to start a blank document, type in Source, switch to preview with Ctrl+R, and save to choose a Markdown file.

• Editable source for new, opened, imported, and crawled documents, with preview, outline, and statistics updates after a short typing pause.
• Shared Undo/Redo for typing, Format, and Reflow, including keyboard shortcuts and the source context menu.
• Existing line-ending conventions preserved while editing; opening source alone does not mark a file dirty.
• Document commands stay reserved while dialogs are open. Closing waits for pending work and protects unsaved content after failed saves.
• Correct preview widths for short documents, relative-resource refresh after Save As, and a Tools notice that no longer covers the document.
• Automatic recovery from a CMake cache tied to different Visual Studio tools, plus Windows CI verification.

This is the first published release of the 2.x rewrite: WinUI 3, a C++ core, a native virtualized reader, PDF text extraction/OCR, documentation crawling, Pandoc conversion, a Tools window, and a self-contained per-user installer.

Install: download the Windows x64 ZIP, extract it, and run the setup executable. Windows 10 version 2004 or later is required. .NET and Windows App SDK runtimes are included. Pandoc and Tesseract remain optional.

Signing: this build is unsigned because no code-signing certificate was available. Installation notes explain the Windows SmartScreen prompt. SHA-256 checksums are attached.

Verified locally with 90 native and 75 view-model checks, a successful WinUI build, and desktop smoke checks for new documents, editing, preview, history, and layout. The out-of-process Save As dialog was opened; completed disk saves were verified by the view-model/C ABI harness.

The full architecture, validation details, and remaining development work are in Development status.