crates.io · crates:log4rs

log4rs active

A highly configurable multi-output logging implementation for the `log` facade

Latest stable version	1.4.0
Published	2025-09-05 16:44:10 UTC
Install	`cargo add log4rs`
Minimum Rust version (rust-version)	`Rust ≥ 1.75`
License	MIT OR Apache-2.0
Advisories on latest version	none known
Last verified	2026-10-09 15:28:56 UTC
Sources	api.osv.dev, crates.io

Maintenance

Activity	slowing down
Last stable release	2025-09-05 16:44:10 UTC · 399 days ago
Stable releases in the last 12 months	0
Published versions	43

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

Version history

Version	Published
`1.4.0`	2025-09-05 16:44:10 UTC
`1.3.0`	2024-02-10 02:52:39 UTC
`1.2.0`	2022-10-11 18:59:46 UTC
`1.1.1`	2022-04-22 15:10:24 UTC
`1.1.0`	2022-04-21 15:57:35 UTC
`1.0.0`	2020-12-16 17:00:22 UTC
`0.13.0`	2020-07-22 20:40:58 UTC
`0.12.0`	2020-05-06 00:09:26 UTC
`0.11.0`	2020-03-11 17:49:41 UTC
`0.10.0`	2020-01-29 23:08:38 UTC
`0.9.0`	2019-11-29 19:52:26 UTC
`0.8.3`	2019-04-03 04:25:27 UTC
`0.8.2`	2019-04-03 04:21:30 UTC
`0.8.1`	2018-10-17 15:20:00 UTC
`0.8.0`	2017-12-26 02:02:47 UTC
`0.7.0`	2017-04-26 04:19:46 UTC
`0.6.3`	2017-04-05 03:08:19 UTC
`0.6.2`	2017-03-01 22:16:21 UTC
`0.6.1`	2017-02-11 22:27:09 UTC
`0.6.0`	2017-02-10 23:35:03 UTC

Showing the 20 most recent of 39 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`	`1.2.0`
`rust 1.70`	`1.3.0`
`rust 1.75`	`1.4.0`
`rust 1.80`	`1.4.0`
`rust 1.85`	`1.4.0`
`rust 1.90`	`1.4.0`

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Frequently asked questions

What is the latest version of log4rs?

The latest stable version of log4rs is 1.4.0, published on 2025-09-05. Verified by Vigia on 2026-10-09.

How do I install the latest version of log4rs?

Run cargo add log4rs. The latest stable version is 1.4.0 (verified 2026-10-09).

Is log4rs deprecated?

No. log4rs is not marked as deprecated in the registry.

Which Rust version does log4rs require?

log4rs 1.4.0 declares this requirement: Rust ≥ 1.75.

Does log4rs 1.4.0 have known vulnerabilities?

No known advisories affect log4rs 1.4.0 according to the data Vigia checks.

Is log4rs still maintained?

log4rs published 0 stable releases in the last 12 months; the most recent was 399 days ago. Activity: slowing down.

Observed changes

No changes observed yet since Vigia started tracking this package.

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