Difftastic is a structural diff tool that understands syntax. See the manual to get started, and the changelog for historical changes.

Manual

Added a Chinese translation: https://difftastic.wilfred.me.uk/zh-CN/

Diffing

Improved runtime performance and memory usage (thanks to @QuarticCat).

Standalone . is now considered punctuation in the diff cost model, which improves diff results in some cases.

Parsing

Updated to the latest tree-sitter parser for Swift.

Command Line Interface

Difftastic will now read a file from stdin if given - as a path argument.

Added an option --context to control the number of lines of context displayed.

--list-languages now respects the value of --color, whose default only uses styling when stdout is a TTY.

Display

Fixed side-by-side display width when color is disabled (when piping difftastic stdout or with --color=never).

Build

Fixed an issue with building on Windows with gcc.