compare
Calico vs Flannel
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Calico | Flannel |
|---|---|---|
| Language | Go | Go |
| Licence | Apache-2.0 | Apache-2.0 |
| Stars | 7.4k | 9.6k |
| Latest | v3.33.0 | v0.28.10 |
| Last push | 2026-10-17 | 2026-10-13 |
| Release cadence | about 21 days between releases | about 15 days between releases |
| Active contributors | 41+ commit authors on the default branch in the last 90 days | 8 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Calico replaces Flannel. Alternatives to Flannel →
Full replacementPod networking with network policy enforcement, which flannel leaves to another component.
Calico
- v3.33.02026-10-01Attached to this release are the following artifacts:
- v3.32.22026-08-30Attached to this release are the following artifacts:
- v3.31.72026-08-21Attached to this release are the following artifacts:
- v3.32.12026-06-26Attached to this release are the following artifacts:
- v3.31.62026-06-19Attached to this release are the following artifacts:
Flannel
- v0.28.102026-10-08Migrate kind e2e tests from bash_unit to Ginkgo
- v0.28.92026-08-07Add helm chart unittest target and CI job
- v0.28.82026-07-22build(deps): bump docker/setup-qemu-action from 4.1.0 to 4.2.0 by @dependabot[bot] in
- v0.28.72026-07-07fix: use install-conf in chart
- v0.28.62026-07-07Bump github/codeql-action from 4.36.0 to 4.36.2 by @dependabot[bot] in
Calico
✓ signed The latest release, v3.33.0, carries a signature GitHub verified.
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Flannel
✓ signed The latest release, v0.28.10, carries a signature GitHub verified.
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