GravityKit
GravityKit folds every GravityView extension into one Pro plugin.
Comparison · Infra & APIs
Clair vs Skipper
A side-by-side editorial comparison of Clair and Skipper — release velocity, themes, recent moves, and the top alternatives to consider.
Clair vs Skipper: at a glance
What is Clair?
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
Clair cut its first 4.10.0 release candidate on November 13, eleven months after 4.9.0. Its Java indexers can now read CycloneDX SBOM files and treat them as the source of truth, and Red Hat's VEX data now covers Maven advisories, so Java packages in Red Hat images can be matched. It also reduces memory use when many packages share a source package.
What is Skipper?
Skipper fixes a 304 path that could drop active routes after an interrupted download.
Skipper, Zalando's HTTP router and Kubernetes ingress, tagged a dozen releases in early November, most of them security fixes in how filters see the request path. v0.28.72 and v0.28.74 made the oidcClaimsQuery and OPA filters check the normalized path. v0.28.76 on November 12 fixes a route-loading bug: an interrupted route download could save an incomplete cache with a new ETag, and a 304 reply then removed routes that were active.
Clair vs Skipper: editorial side-by-side
Clair
2.5INFRA · APIS
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
◆ Current state
Clair cut its first 4.10.0 release candidate on November 13, eleven months after 4.9.0. Its Java indexers can now read CycloneDX SBOM files and treat them as the source of truth, and Red Hat's VEX data now covers Maven advisories, so Java packages in Red Hat images can be matched. It also reduces memory use when many packages share a source package.
◆ Where it's heading
Since 4.8 Clair has moved from Red Hat's older OVAL data to VEX, and each release follows Red Hat's security data more closely. 4.10 adds SBOMs as an input, so Clair can match what an image's own manifest declares, not only what it finds on disk.
◆ Prediction
More 4.10 release candidates and then a final are likely; the long gap between releases suggests that could take weeks.
Skipper
5.0INFRA · APIS
Skipper fixes a 304 path that could drop active routes after an interrupted download.
◆ Current state
Skipper, Zalando's HTTP router and Kubernetes ingress, tagged a dozen releases in early November, most of them security fixes in how filters see the request path. v0.28.72 and v0.28.74 made the oidcClaimsQuery and OPA filters check the normalized path. v0.28.76 on November 12 fixes a route-loading bug: an interrupted route download could save an incomplete cache with a new ETag, and a 304 reply then removed routes that were active.
◆ Where it's heading
After the auth-filter fixes, the work has moved to the route data client, where a partial download combined with ETag caching could take routes out of service. The project is in a hardening phase across both request handling and configuration loading.
◆ Prediction
Expect further v0.28.x tags fixing edge cases in route loading and filters; the entries show no feature work queued.
Alternatives to Clair and Skipper
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Clair or Skipper.
Payload CMS
Payload's v4 beta.9 keeps every past image crop and raises the Node floor again.
Nautobot
Nautobot 3.3 alpha 2 adds test helpers and a cable location filter after 3.2.9's token-leak fix.
Shuffle
Shuffle tags builds almost daily, but the notes are empty.
KrakenD
KrakenD's community edition is shipping only dependency bumps.
Velociraptor
Velociraptor's recent releases are mostly about patching CVEs.
See all Clair alternatives → · See all Skipper alternatives →
Recent activity from Clair and Skipper
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 13h agoClairClair 4.10 RC reads CycloneDX SBOMs for Java matching
- 1d agoSkipperv0.28.76: interrupted route download no longer drops live routes
- 4d agoSkipperv0.28.75: switch PR labeler to pull_request trigger
- 4d agoSkipperv0.28.74: OPA filters now check the normalized path
- 4d agoSkipperv0.28.73: auto-label change-freeze PRs
- 4d agoSkipperv0.28.72: oidcClaimsQuery evaluates the cleaned path
- 7d agoSkipperv0.28.71: per-application proxy logs via annotate
- 11mo agoClairClair 4.9 moves CVSS data to NVD's 2.0 feeds
- 2y agoClairClair 4.8 replaces Red Hat OVAL data with VEX
- 2y agoClairClair 4.7.4 changes the default layer download location
- 2y agoClairClair 4.7.3 requires TLS 1.2 or newer
- 3y agoClairClair 4.7.2 drops the retired CRDA source
Frequently asked questions
What is the difference between Clair and Skipper?
They serve adjacent needs but don't currently overlap on shipped themes. Skipper is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Clair better than Skipper?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Skipper is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Clair?
Top Clair alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Clair alternatives" section above for the current picks, or visit /alternatives/clair for the full list with editorial commentary on each.
What are the best alternatives to Skipper?
Top Skipper alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Skipper alternatives" section above for the current picks, or visit /alternatives/skipper for the full list with editorial commentary on each.