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futures-util

v0.3.32 Growing

Common utilities and extension traits for the futures-rs library.

MIT OR Apache-2.0 Edition 2018 MSRV 1.71

Quick Verdict

  • โœ“Actively maintained (updated 40d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (72.7K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)
  • !84% of releases were yanked

Security

Checking security advisories...
Downloads
533.4M
Dependents
72.7K
Releases
37
Size
169KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

43.5M downloads in the last 30 days (1.5M/day), up 24% from the previous period.

๐Ÿ›๏ธ
Foundational crate

72.7K crates depend on futures-util โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 63 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 8+ years old, futures-util hasn't reached 1.0 yet. Expect potential API changes between versions.

โš ๏ธ
Notable yanked versions

84% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

Notable dependents include hyper, tokio-util, futures, tokio-rustls, futures-executor. When high-quality crates choose futures-util, it's a strong quality signal.

Health Breakdown

Maintenance 16/25

Recency, release consistency, active ratio

Quality 10/25

Yanked ratio, deps, size, maturity, features

Community 12/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 11/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
1.1M/day avg+69%
0500K1.0M1.5M12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.3.31
93%
v0.3.32
7%
v0.2.1
0%
v0.2.0
0%
v0.2.0-alpha
0%

Release Timeline

37 releases31 yankedsince 2018
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2018
4
2019
2
2020
7
2021
11
2022
6
2023
5
2024
1
2025
2026
1
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Yanked

Feature Flags

default =["std", "async-await", "async-await-macro"]

iostd*sinkallocbilockcompatchannelunstableio-compatasync-await*portable-atomicasync-await-macro*write-all-vectoredcfg-target-has-atomic

README

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Maintainers

Dependencies
14
direct dependencies
Dependents
72.7K
crates depend on futures-util