Difftastic 0.71.0

What's new in 0.71.0

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

Diffing

Improved performance, particularly for line-based diffs or pathological cases (e.g. an extremely long line).

Linear diffs (used in line-based diffs and word highlighting) have changed from the Wu-Manber algorithm to the Histogram algorithm. This is a modest runtime improvement and a large improvement for memory usage in worst case scenarios.

Some diff results have slightly changed, although the diff quality should be similar. (Please file bugs if not.)

Parsing

Improved C++, Dockerfile, Haskell, JavaScript, Makefile, Perl, Ruby, Rust, Scala and TypeScript.

Improved heuristics and the default globs used for language detection.

Removed Hare support (upstream parser is no longer maintained).

Command Line Interface

--context can now be set with the short flag -c.

Release

Prebuilt binaries attached to releases now include the version in the filename.

Full release notes »