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MD Viewer 3.0 moves the retained application into Jupiter and redesigns it as a document workbench.
- Shared Jupiter.UI styling, standard Windows title bar and menus, dark/light themes and Windows/custom accent controls.
- Native Markdown reading, source editing, outline, find, undo/redo, import/OCR, Pandoc export and documentation crawling retained.
- Rust-owned ABI, document I/O, encoding preservation and atomic saves. Specialist C++ adapters remain as documented migration exceptions.
- Per-user Windows installer, top-level Start entry MD Viewer, stable upgrade identity and data-preserving uninstall.
Windows 11 24H2 x64. .NET and Windows App SDK runtimes are bundled. Optional Pandoc and Tesseract are managed through Tools > Conversion and OCR. The installer is unsigned.
Verified locally: 3 Rust tests, 90 native checks, 141 managed workflow checks, zero Jupiter style violations, installed GUI editing/save/preview, dark/light controls, Start Menu launch, reinstall and uninstall with settings and user-data preservation. A previous 2.3 installer could not be started, so a direct 2.x-to-3.0 upgrade remains unverified; the installer identity and data paths are retained.
Install md-viewer-3.0.0-setup.exe; the installer is also inside the Windows zip. The symbols zip is for debugging.
Installer SHA-256: 2f53fa4b425e52890016cc0a2077b0b0d17b4f6a3fd5cdcf459300f920e2b885.