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Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

[0.6.0] - 2026-04-09

This release matches HarfBuzz [v14.1.0][harfbuzz-14.1.0], and has an MSRV (minimum supported Rust version) of 1.85.

Roll to read-fonts 0.39.0.

0.5.2 - 2026-03-04

This release matches HarfBuzz [v13.0.0][harfbuzz-13.0.0], and has an MSRV (minimum supported Rust version) of 1.85.

Fix hr-shape dependency, so we can publish on crates.io.

0.5.1 - 2026-03-04

This release matches HarfBuzz [v13.0.0][harfbuzz-13.0.0], and has an MSRV (minimum supported Rust version) of 1.85.

  • New command-line tool hr-shape that is a limited counterpart to HarfBuzz hb-shape, in its own hr-shape crate.
  • As a result of the above, source directory turned into a workspace, with new harfrust and hr-shape directories.
  • Fix bug regarding cluster-level=3.
  • Various small performance improvements.
  • We stand by the people of Iran.

0.5.0 - 2026-01-07

This release matches HarfBuzz v12.3.0, and has an MSRV (minimum supported Rust version) of 1.85.

  • Update to read-fonts 0.37.0 (and bump MSRV to 1.85).
  • Various performance improvements.

0.4.1 - 2025-12-08

This release matches HarfBuzz v12.2.0, and has an MSRV (minimum supported Rust version) of 1.82.

  • Make Script::from_iso15924_tag const.
  • Avoid panic when saving syllable indices.

0.4.0 - 2025-11-10

This release matches HarfBuzz v12.2.0, and has an MSRV (minimum supported Rust version) of 1.82.

  • Enable more HarfBuzz tests.
  • Fix bug from HarfBust puzzle.
  • Update to read-fonts 0.36.0.

0.3.2 - 2025-10-15

This release matches HarfBuzz v12.1.0, and has an MSRV (minimum supported Rust version) of 1.82.

  • Fix "would apply" logic for chained sequence context format 3. This bug was preventing accurate classification of characters in Indic syllables for some fonts.
  • Various optimizations.

0.3.1 - 2025-09-12

This release matches HarfBuzz v11.5.0, and has an MSRV (minimum supported Rust version) of 1.82.

  • Actually bump MSRV from 1.80 to 1.82.

0.3.0 - 2025-09-12

This release matches HarfBuzz v11.5.0, and has an MSRV (minimum supported Rust version) of 1.82.

  • Update to read-fonts 0.35.0.
  • Bump MSRV from 1.80 to 1.82.

0.2.1 - 2025-09-12

This release matches HarfBuzz v11.5.0, and has an MSRV (minimum supported Rust version) of 1.80.

  • Update to Unicode 17.0.
  • Fix panic when processing chained sequence context format 3.
  • Add accessors for script, language and direction to ShapePlan.
  • Various optimizations.

0.2.0 - 2025-08-29

This release matches HarfBuzz v11.4.4, and has an MSRV (minimum supported Rust version) of 1.80.

  • Major optimizations to speed up AAT shaping.

0.1.2 - 2025-08-20

This release matches HarfBuzz v11.3.3, and has an MSRV (minimum supported Rust version) of 1.80.

  • Major optimizations to speed up shaping.
  • Initial support for shape plan caching in the form of ShapePlanKey.

0.1.1 - 2025-08-11

This release matches HarfBuzz v11.3.3, and has an MSRV (minimum supported Rust version) of 1.75.

  • Major optimizations to speed up shaping.

0.1.0 - 2025-06-10

This release matches HarfBuzz v11.2.1, and has an MSRV (minimum supported Rust version) of 1.75.

  • Initial Release of HarfRuzz.

HarfRust is a fork of RustyBuzz. See their changelog for details of prior releases.