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delta_kernel

v0.20.0 Growing

Core crate providing a Delta/Deltalake implementation focused on interoperability with a wide range of query engines.

Apache-2.0 Edition 2021 MSRV 1.85

Quick Verdict

  • โœ“Actively maintained (updated 23d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 117 crates
  • !Heavy dependency tree (34 direct deps)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
2.6M
Dependents
117
Releases
33
Size
704KB

Deep Insights

๐Ÿ“Š
Steady growth

125.2K downloads in the last 30 days (4.2K/day), up 6% from the previous period.

๐Ÿ”—
Moderate adoption

117 crates depend on delta_kernel. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 1+ years old, delta_kernel hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“ฆ
Heavy dependency tree

34 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐ŸŒŸ
Used by top crates

Notable dependents include deltalake, deltalake-core, datafusion-server, tansu-schema. When high-quality crates choose delta_kernel, it's a strong quality signal.

Health Breakdown

Maintenance 21/25

Recency, release consistency, active ratio

Quality 13/25

Yanked ratio, deps, size, maturity, features

Community 9/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
4K/day avg-35%
02K4K6K8K10K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.3.0
37%
v0.1.1
30%
v0.8.0
18%
v0.18.2
9%
v0.10.0
6%

Release Timeline

33 releasessince 2024
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2026
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Feature Flags

arrowarrow-56arrow-57need-arrowtest-utilsschema-diffinternal-apicatalog-managedclustered-tablearrow-conversionarrow-expressionintegration-testdefault-engine-basedefault-engine-rustlsdefault-engine-native-tls

README

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Maintainers

Dependencies
34
direct dependencies
Dependents
117
crates depend on delta_kernel