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Aug 2, 2021 at 15:48
Good news: it's super easy to add LTO to Rust projects, and only added 60 seconds to difftastic's link time: [profile.release] lto = true Bad news: It only reduces the difftastic runtime by ~5%. At least it didn't require much wrangling to try :)

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Difftastic 0.71 is out! This is a polish release, still well worth upgrading: * A ton of performance improvements, especially for nasty corner cases. * Improved C++, Dockerfile, Haskell, JavaScript, Makefile, Perl, Ruby, Rust, Scala and TypeScript.
Release 0.71.0 · Wilfred/difftastic
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Aug 7, 2026 at 22:20
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I've released difftastic 0.70! In this release: * Added Dockerfile and fish shell support * Improved Dart, Emacs Lisp, Erlang, Java, OCaml, PHP, Protocol Buffers and TOML. * A bunch of display and performance fixes.
Release 0.70.0 · Wilfred/difftastic
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Jul 31, 2026 at 08:45
I carefully document `cargo install --locked` for difftastic users, I carefully use `--locked` for CI, and I've just realised that all my release builds totally ignore it! Oops. Anyone using my prebuilt binaries have been getting different Unicode width calculations in display.