ICU4X 0.4 Released

Unicode® ICU4X 0.4 has just been released. This revision brings an implementation of Unicode Properties, major performance and memory improvements for DateTimeFormat, and extends the data provider data loading models with BlobDataProvider.

ICU4X 0.4 also adds initial time zone support in DateTimeFormat, week of month/year, iteration APIs in Segmenter and experimental ListFormatter.

The ICU4X team is shifting to work on the 0.5 release in accordance with the roadmap and a product requirements document setting sights on a stable 1.0 release in Q2 2022.

ICU4X aims to develop a highly modular set of internationalization components for resource-constrained environments, portable across programming languages.

Multiple early adopters use ICU4X in pre-release software in Rust, C, C++, and WebAssembly. The team is ready to onboard additional early adopters to refine the APIs, build processes, and feature sets before the 1.0 release. The team is also looking for contributors to write code generation for additional target programming languages. For more information, please open a discussion on the ICU4X GitHub.

For details, please see the changelog.

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Over 144,000 characters are available for adoption to help the Unicode Consortium’s work on digitally disadvantaged languages