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Comparison · Infra & APIs
Incus vs Skipper
A side-by-side editorial comparison of Incus and Skipper — release velocity, themes, recent moves, and the top alternatives to consider.
Incus vs Skipper: at a glance
What is Incus?
Incus 7.4 turns a year of migration plumbing into near-live migration that actually moves disks.
7.0.0 LTS became the supported baseline in May with 7.0.1 as its first patch, while the feature branch kept a roughly monthly cadence: 7.1 cleaned up issues the LTS surfaced, 7.2 added migration-compatible hypervisor flags for stateful migration, 7.3 shipped native Windows and macOS installers. 7.4 is the largest of them and the first with a headline capability — near-live migration implemented on both client and server, extended to dependent disks inside a cluster, with incremental memory migration made opt-in. Alongside it sit Secure Boot key management, a substantial NVRAM rework, librbd for all Ceph interactions, and disk and NIC burst limits.
What is Skipper?
Skipper adds native RFC 9421 HTTP Message Signatures while shipping multiple patch releases per day
Skipper (Zalando's open-source HTTP router and API gateway) is in active maintenance mode, shipping 2-4 patch releases per week in the 0.27.9x series. The recent batch is a mix of documentation fixes, flaky test corrections, and two substantive additions: a proxy-ssl-verify option for HTTPS backends, and a cross-RouteGroup parse cache that cuts route load time by 20%. The v0.27.96 RFC 9421 implementation stands out as the only directional addition.
Incus vs Skipper: editorial side-by-side
Incus
6.3INFRA · APIS
Incus 7.4 turns a year of migration plumbing into near-live migration that actually moves disks.
◆ Current state
7.0.0 LTS became the supported baseline in May with 7.0.1 as its first patch, while the feature branch kept a roughly monthly cadence: 7.1 cleaned up issues the LTS surfaced, 7.2 added migration-compatible hypervisor flags for stateful migration, 7.3 shipped native Windows and macOS installers. 7.4 is the largest of them and the first with a headline capability — near-live migration implemented on both client and server, extended to dependent disks inside a cluster, with incremental memory migration made opt-in. Alongside it sit Secure Boot key management, a substantial NVRAM rework, librbd for all Ceph interactions, and disk and NIC burst limits.
◆ Where it's heading
Migration has been the through-line for three releases and 7.4 is where it becomes a feature rather than plumbing. The pattern is consistent: 7.2 made stateful migration survive non-identical hosts, 7.4 makes moving an instance cheap enough to do routinely, including the storage that hangs off it. Around that, the VM side is maturing toward parity with commercial hypervisors — firmware key management, NVRAM control, per-device rate limits — which is the surface that decides whether Incus is usable as a datacentre hypervisor rather than a container manager that also runs VMs.
◆ Prediction
Expect the next release to harden near-live migration rather than replace it — the evacuation and cluster-recovery fixes already threaded through 7.4 suggest the gaps are in cluster-wide orchestration, not the transfer itself.
Skipper
7.5INFRA · APIS
Skipper adds native RFC 9421 HTTP Message Signatures while shipping multiple patch releases per day
◆ Current state
Skipper (Zalando's open-source HTTP router and API gateway) is in active maintenance mode, shipping 2-4 patch releases per week in the 0.27.9x series. The recent batch is a mix of documentation fixes, flaky test corrections, and two substantive additions: a proxy-ssl-verify option for HTTPS backends, and a cross-RouteGroup parse cache that cuts route load time by 20%. The v0.27.96 RFC 9421 implementation stands out as the only directional addition.
◆ Where it's heading
Skipper is keeping pace with HTTP security standards — RFC 9421 HTTP Message Signatures follows earlier work on OAuth and auth filters — while optimizing the routing data structures for clusters with large RouteGroup counts. The rapid minor version cadence suggests a project that values stability through frequent small releases over batched feature drops.
◆ Prediction
The RFC 9421 filter is likely the first of a sequence of HTTP security standards implementations; FAPI 2.0 compliance and signed request propagation are the logical next targets for enterprise API gateway use cases. The 20% parse cache improvement will also likely be extended to other shared-string scenarios in the routing config.
Alternatives to Incus 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 Incus or Skipper.
Jackett
Jackett ships daily tracker maintenance with no architectural changes in sight.
GitHub
Copilot doubles down on agentic workflows as GitHub phases out older AI models
Infisical
Infisical launches Agent Vault: credential-free secret injection for AI agents.
Railway
Railway GA's Sandboxes, ships one-click Postgres major upgrades, and lets anyone deploy without an account — a PaaS going full agent-native.
ToolJet
ToolJet bundles MCP into its EE image and adds PAT auth, making the AI builder addressable by external agents
See all Incus alternatives → · See all Skipper alternatives →
Recent activity from Incus and Skipper
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoSkipperDoc fix: ingress annotations for defaultBackend vs rules-created routes
- 2d agoSkipperFix flaky proxy listener test with direct TCP exchange
- 3d agoSkipperNew proxy-ssl-verify option for TLS verification on HTTPS backends
- 5d agoSkipperFix flaky OPA response filter test by awaiting instance readiness
- 5d agoSkipperNative RFC 9421 HTTP Message Signatures filter added ⚡
- 5d agoSkipperCross-RouteGroup parse cache cuts route load time 20%
- 24d agoIncusIncus 7.4 adds near-live migration and Secure Boot key management ⚡
- 1mo agoIncusNative Windows and macOS installers; QMP command timeouts
- 2mo agoIncusFirst patch release on the 7.0 LTS branch
- 2mo agoIncusMigration-compatible hypervisor flags for stateful migration
- 3mo agoIncusFixes for issues surfaced by the 7.0 release
- 4mo agoIncusIncus 7.0 LTS, with runtime-detected QEMU feature gating
Frequently asked questions
What is the difference between Incus and Skipper?
They serve adjacent needs but don't currently overlap on shipped themes. Skipper is currently shipping more aggressively (velocity 7.5 vs 6.3), with 1 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Incus better than Skipper?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Skipper is currently shipping more aggressively (velocity 7.5 vs 6.3), with 1 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Incus?
Top Incus alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Incus alternatives" section above for the current picks, or visit /alternatives/incus 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.