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futures-preview

v0.2.2 Growing

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

MIT/Apache-2.0
Asynchronous #async#future#futures

Quick Verdict

  • โœ•Not updated for 6+ years
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (1.5K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Permissive license (MIT/Apache-2.0)

Security

Checking security advisories...
Downloads
1.5M
Dependents
1.5K
Releases
21
Size
26KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

25.2K downloads in the last 30 days (839/day), up 78% from the previous period.

๐Ÿ”—
Widely adopted

1.5K crates depend on futures-preview. Strong ecosystem adoption means battle-tested code and long-term stability.

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 7+ years old, futures-preview hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 26KB, futures-preview is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include qutex, deploy, tracing-distributed, ccl, tokio-serde-json. When high-quality crates choose futures-preview, it's a strong quality signal.

Health Breakdown

Maintenance 7/25

Recency, release consistency, active ratio

Quality 14/25

Yanked ratio, deps, size, maturity, features

Community 19/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 11/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
577/day avg+90%
05001K2K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.3.0-alpha.19
71%
v0.3.0-alpha.18
10%
v0.3.0-alpha.17
10%
v0.2.2
5%
v0.3.0-alpha.12
4%

Release Timeline

21 releases1 yankedsince 2018
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2018
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2019
8
2020
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2026
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Feature Flags

default =["std"]

std*nightly

README

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Maintainers

Dependencies
10
direct dependencies
Dependents
1.5K
crates depend on futures-preview

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