crates.io · crates:unicode_names2

unicode_names2 active

Map characters to and from their name given in the Unicode standard. This goes to great lengths to be as efficient as possible in both time and space, with the full bidirectional tables weighing barely 500 KB but still offering O(1)* look-up in both directions. (*more precisely, O(length of name).)

Latest stable version	4.0.0
Published	2026-09-08 17:17:04 UTC
Install	`cargo add unicode_names2`
Minimum Rust version (rust-version)	`Rust ≥ 1.65.0`
License	(MIT OR Apache-2.0) AND Unicode-DFS-2016
Advisories on latest version	none known
Last verified	2026-10-09 15:29:14 UTC
Sources	api.osv.dev, crates.io

Maintenance

Activity	active
Last stable release	2026-09-08 17:17:04 UTC · 31 days ago
Stable releases in the last 12 months	3
Published versions	18

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`4.0.0`	2026-09-08 17:17:04 UTC
`3.1.0`	2026-06-04 06:36:46 UTC
`3.0.0`	2026-06-04 06:30:29 UTC
`2.0.0`	2025-06-19 18:30:14 UTC
`1.3.0`	2024-09-12 17:14:05 UTC
`1.2.2`	2024-03-10 10:29:27 UTC
`1.2.1`	2023-12-14 21:53:05 UTC
`1.2.0`	2023-10-14 18:46:18 UTC
`1.1.0`	2023-10-02 19:55:10 UTC
`1.0.0`	2023-08-13 15:07:27 UTC
`0.6.0`	2022-10-13 07:07:02 UTC
`0.5.1`	2022-08-09 17:40:51 UTC
`0.5.0`	2022-02-06 14:44:10 UTC
`0.4.0`	2020-03-17 18:52:10 UTC
`0.3.0`	2019-07-26 23:51:58 UTC
`0.2.2`	2018-06-17 00:45:24 UTC
`0.2.1`	2018-06-17 00:20:56 UTC
`0.2.0` withdrawn	2018-06-17 00:17:57 UTC

Showing the 18 most recent of 18 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`rust 1.63`	`2.0.0`
`rust 1.70`	`4.0.0`
`rust 1.75`	`4.0.0`
`rust 1.80`	`4.0.0`
`rust 1.85`	`4.0.0`
`rust 1.90`	`4.0.0`

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Frequently asked questions

What is the latest version of unicode_names2?

The latest stable version of unicode_names2 is 4.0.0, published on 2026-09-08. Verified by Vigia on 2026-10-09.

How do I install the latest version of unicode_names2?

Run cargo add unicode_names2. The latest stable version is 4.0.0 (verified 2026-10-09).

Is unicode_names2 deprecated?

No. unicode_names2 is not marked as deprecated in the registry.

Which Rust version does unicode_names2 require?

unicode_names2 4.0.0 declares this requirement: Rust ≥ 1.65.0.

Does unicode_names2 4.0.0 have known vulnerabilities?

No known advisories affect unicode_names2 4.0.0 according to the data Vigia checks.

Is unicode_names2 still maintained?

unicode_names2 published 3 stable releases in the last 12 months; the most recent was 31 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

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