Enhancements:

- Improved treemap navigation, zooming, and context-menu behavior
- Improved FileTreeView keyboard navigation and scroll-to-selection behavior
- Improved selection handling when sorting file-tree results
- Improved Select Drives dialog layout and local-drive display
- Added double-click scan behavior in the Select Drives dialog
- Added include filters and file age filtering
- Added filter exclusion context-menu actions
- Added pruning for previous-folder history
- Added larger toolbar icon support and runtime-generated toolbar icons
- Added Settings button to toolbar
- Improved toolbar rendering with Unicode glyph support
- Added selectable file hash algorithms
- Increased size and percentage display precision
- Changed subtree percentage display to size proportion terminology
- Added JSON support for saving/loading scan results and duplicate lists
- Expanded cleanup and system-tool handling
- Improved localization resources and multiple language updates
- Added installer option to add WinDirStat to the system PATH, disabled by default
- Removed OLE dependency to allow execution on Server Core
- Various performance, memory, and internal refactoring improvements

Bug Fixes

- Corrected custom folder icon resolution failures
- Corrected extension column autosizing issues
- Corrected extension calculations after refresh
- Correct legacy uninstall registry key removal
- Addressed selection regressions in owner-data tree/list handling
- Corrected drive handling when volume names or trailing slashes are missing
- Corrected cloud-duplication-detection warning behavior
- Corrected clipboard memory handling

Miscellaneous

- Added Microsoft Store MSIX packaging support
- Added Chocolatey release publishing automation
- Microsoft Windows Server Core now supported
- Microsoft Windows 7 supported again
- Microsoft Windows Server 2008 R2 supported again

Breaking Changes

- Command line options for saving and loading have changed (see Wiki)