Rust crate maintenance · data Oct 27, 2026
Is memchr still maintained?
Short answerYes: actively maintained. memchr's newest version, 2.8.3, shipped on Jul 8, 2026 (4 months ago). It has had 4 releases in the last 12 months and 6 in 24, and 46 non-yanked versions since 2015. 2,274 crates depend on it and it gets 4,765,439 real downloads a day.
The signals
- Last release: 4 months ago (2.8.3, Jul 8, 2026).
- Release rhythm: 4 in the last year, 6 in two.
- Still used: 4,765,439 real downloads a day, quiet-day trend -11% against the field.
- Yanked versions: 1 (a normal sign of a maintainer fixing a bad release).
Releases per quarter, last 2 years
| Quarter | Releases | |
|---|---|---|
| Oct 30 to Jan 28, 2025 | 0 | |
| Jan 29 to Apr 29, 2025 | 0 | |
| Apr 30 to Jul 29, 2025 | 1 | |
| Jul 30 to Oct 28, 2025 | 1 | |
| Oct 29 to Jan 27, 2026 | 0 | |
| Jan 28 to Apr 28, 2026 | 1 | |
| Apr 29 to Jul 28, 2026 | 3 | |
| Jul 29 to Oct 27, 2026 | 0 |
If you need something more active
Rules
From crates.io release history (non-yanked versions), fetched Oct 27, 2026: last release within 6 months = actively maintained; within 18 months = slow cadence; older with 1,000+ dependents = quiet and widely relied on; otherwise quiet. We do not read commits or issues: a crate can be finished and safe without new releases, and active on GitHub without publishing. Before you rely on it, look at the repository for recent commits and open issues. Run cargo audit for security advisories.
Up next
The full numbers: Widely used and losing ground. Chart, alternatives and badge.memchrRust crate. Provides extremely fast (uses SIMD on x86_64, aarch64 and wasm32) routines for 1, 2 or 3 byte search and single substring search. Real use: 4.8M downloads a...Read it next →Also worth your time
Art: Nicholas Roerich, Nag Lake (1925). Public domain, via Wikimedia Commons.
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