Difftastic is a structural diff tool that understands syntax. See the manual to get started, and the changelog for historical changes.
Parsing
Added support for Objective-C and VHDL.
Files starting with <?xml are now parsed as XML.
Fixed a munmap_chunk(): invalid pointer crash on parsing some large files, particularly JSON.
Display
The default display width for tabs has changed to 4.
Fixed an issue where difftastic would sometimes output literal tabs rather than respecting the display width for tabs.
Build
difftastic now requires Rust 1.65 to build.