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72

icu

v2.2.0 Stable

ICU4X: International Components for Unicode, written in Rust

Unicode-3.0 Edition 2021 MSRV 1.86

Quick Verdict

  • โœ“Actively maintained (updated 54d ago)
  • โœ“Stable API (2.x for 6+ years)
  • โœ“Trusted by 301 crates
  • โœ“Team maintained (3 owners)
  • !Heavy dependency tree (21 direct deps)

Security

Checking security advisories...
Downloads
1.6M
Dependents
301
Releases
21
Size
106KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

128.8K downloads in the last 30 days (4.3K/day), up 32% from the previous period.

๐Ÿ”—
Moderate adoption

301 crates depend on icu. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 56 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 21 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

21 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐ŸŒŸ
Used by top crates

Notable dependents include jiff-icu, xot, azul-layout, icu_datagen, icu_provider_source. When high-quality crates choose icu, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 19/25

Yanked ratio, deps, size, maturity, features

Community 18/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 10/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
4K/day avg+14%
02K4K6K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v1.5.0
58%
v2.1.1
18%
v2.0.0
12%
v1.4.0
8%
v2.2.0
4%

Release Timeline

10 releasessince 2023
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2023
3
2024
2
2025
4
2026
1
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Feature Flags

default =["icu_calendar/default", "icu_casemap/default", "icu_collator/default", "icu_datetime/default", "icu_decimal/default", "icu_list/default", "icu_locale/default", "icu_normalizer/default", "icu_plurals/default", "icu_properties/default", "icu_segmenter/default", "icu_time/default", "icu_experimental?/default", "icu_pattern?/default"]

syncserdedatagenloggingunstableserde_humancompiled_data

README

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Maintainers

Dependencies
21
direct dependencies
Dependents
301
crates depend on icu

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