Last month, Microsoft released a modern remake of its classic MS-DOS Editor, bringing back a piece of computing history that first appeared in MS-DOS 5.0 back in 1991. The new open source tool, built with Rust and simply called "Edit," works on Windows, macOS, and—in a twist that would have seemed unlikely three decades ago—Linux. https://devblogs.microsoft.com/commandline/edit-is-now-open-source/

Aside from ease of use, Microsoft's main reason for creating the new version of Edit stems from a peculiar gap in modern Windows. "What motivated us to build Edit was the need for a default CLI text editor in 64-bit versions of Windows," writes Nguyen while referring to the command-line interface, or CLI. "32-bit versions of Windows ship with the MS-DOS editor, but 64-bit versions do not have a CLI editor installed inbox.". //

https://github.com/microsoft/edit

At 250KB, the new Edit maintains the lightweight philosophy of its predecessor while adding features the original couldn't dream of: Unicode support, regular expressions, and the ability to handle gigabyte-sized files. The original editor was limited to files smaller than 300KB depending on available conventional memory—a constraint that seems quaint in an era of terabyte storage.