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futures

v0.3.32 Growing

An implementation of futures and streams featuring zero allocations, composability, and iterator-like interfaces.

MIT OR Apache-2.0 Edition 2018 MSRV 1.71
Asynchronous #async#future#futures

Quick Verdict

  • โœ“Actively maintained (updated 40d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (235.0K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)
  • !32% of releases were yanked

Security

Checking security advisories...
Downloads
488.6M
Dependents
235.0K
Releases
73
Size
61KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

37.6M downloads in the last 30 days (1.3M/day), up 22% from the previous period.

๐Ÿ›๏ธ
Foundational crate

235.0K crates depend on futures 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 215 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 9+ years old, futures hasn't reached 1.0 yet. Expect potential API changes between versions.

โš ๏ธ
Notable yanked versions

32% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

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

Health Breakdown

Maintenance 17/25

Recency, release consistency, active ratio

Quality 11/25

Yanked ratio, deps, size, maturity, features

Community 18/20

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
1.0M/day avg+67%
0500K1.0M1.5M12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.3.31
52%
v0.3.30
22%
v0.3.28
14%
v0.1.31
8%
v0.3.21
5%

Release Timeline

73 releases23 yankedsince 2016
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2016
8
2017
10
2018
16
2019
6
2020
8
2021
12
2022
6
2023
5
2024
1
2025
2026
1
Less
More|
Yanked

Feature Flags

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

std*spinallocbilockcompatexecutor*unstableio-compatasync-await*thread-poolwrite-all-vectoredcfg-target-has-atomic

README

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Maintainers

Dependencies
11
direct dependencies
Dependents
235.0K
crates depend on futures

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