# Difftastic 0.70.0

- Product: Difftastic (https://whatsnew.fyi/product/difftastic)
- Vendor: Wilfred Hughes
- Date: 2026-08-07
- Version: 0.70.0
- Original notes: https://github.com/Wilfred/difftastic/releases/tag/0.70.0
- Permalink: https://whatsnew.fyi/product/difftastic/releases/0.70.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Improved diffing performance, particularly when diffing directories
- **changed** — Files with parse errors now report the position of the first error
- **added** — Added support for Dockerfiles and Fish shell
- **changed** — Improved support for Dart, Emacs Lisp, Erlang, Java, OCaml, PHP, Protocol Buffers and TOML
- **removed** — Removed support for Elvish and SCSS
- **fixed** — Fixed an issue where files with tabs were not always aligned correctly in some build configurations
- **fixed** — Fixed an alignment issue with line numbers in side-by-side mode
- **fixed** — Fixed an issue where prebuilt binaries on GitHub did not respect Cargo.lock, causing rendering bugs in source code with tabs

Difftastic is a structural diff tool that understands syntax. See [the manual](https://difftastic.wilfred.me.uk/introduction.html) to get started, and [the changelog](https://github.com/Wilfred/difftastic/blob/master/CHANGELOG.md) for historical changes.

###### Diffing

Improved diffing performance, particularly when diffing directories.

###### Parsing

Files with parse errors now report the position of the first error, to help investigate issues.

Added support for Dockerfiles and Fish shell.

Improved support for Dart, Emacs Lisp, Erlang, Java, OCaml, PHP, Protocol Buffers and TOML.

Removed support for Elvish and SCSS (upstream parsers are no longer maintained).

###### Display

Fixed an issue where files with tabs were not always aligned correctly in some build configurations.

Fix an alignment issue with line numbers in side-by-side mode.

###### Release

Fixed an issue where prebuilt binaries on GitHub did not respect Cargo.lock, so they used newer library versions than tested on CI. This caused rendering bugs in source code with tabs.