v1.11 (released 3/23/2021)

Much more secure wipe via sdelete64 for Windows, shred for Linux, and rm -P for MacOS
Much more beautiful UI for MacOS
Robust secure wipe support for drag and dropped files/folders
Only open input files in read mode, since write mode is unnecessary
Clean up source code, add better comments
New: Drag and drop support (multiple files, a folder, a file and a folder, etc.)