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concurrent-queue

v2.5.0 Growing

Concurrent multi-producer multi-consumer queue

Apache-2.0 OR MIT Edition 2021 MSRV 1.60
Concurrency #channel#mpmc#spmc#mpsc#spsc

Quick Verdict

  • Not updated for 2+ years
  • Stable API (2.x for 6+ years)
  • Massive adoption (1.0K crates depend on it)
  • Team maintained (3 owners)
  • Permissive license (Apache-2.0 OR MIT)

Security

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Downloads
242.9M
Dependents
1.0K
Releases
16
Size
23KB

Deep Insights

📈
Strong growth momentum

19.3M downloads in the last 30 days (642.6K/day), up 21% from the previous period.

🔗
Widely adopted

1.0K crates depend on concurrent-queue. Strong ecosystem adoption means battle-tested code and long-term stability.

👤
Prolific maintainer

The primary maintainer publishes 118 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

Stable for 6+ years

The API has been stable (1.x) for over 6 years with 16 releases. This level of maturity means you can depend on it without worrying about breaking changes.

📐
Compact crate

At 22KB, concurrent-queue is lightweight. Small crate size correlates with focused, well-scoped functionality.

🌟
Used by top crates

Notable dependents include event-listener, async-channel, polling, async-io, async-executor. When high-quality crates choose concurrent-queue, it's a strong quality signal.

Health Breakdown

Maintenance 4/25

Recency, release consistency, active ratio

Quality 18/25

Yanked ratio, deps, size, maturity, features

Community 18/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads · last 90 days
568K/day avg+20%
0200K400K600K800K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v2.5.0
76%
v2.2.0
7%
v2.4.0
7%
v1.2.2
7%
v1.2.4
3%

Release Timeline

10 releases1 yankedsince 2020
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2020
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2021
2022
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2023
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2024
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2025
2026
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Feature Flags

default =["std"]

std*

README

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Maintainers

Dependencies
7
direct dependencies
Dependents
1.0K
crates depend on concurrent-queue

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