Project Summary
Project Calico represents a new approach to virtual networking, based on the same scalable IP networking principles as the Internet. Unlike other virtual networking approaches, Calico does not use overlays, instead providing a pure Layer 3 approach to data center networking. Calico is simple to deploy and diagnose, provides a rich security policy, supports both IPv4 and IPv6 and can be used across a combination of bare-metal, VM and container workloads.
In a Nutshell, Calico SDN...
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has a well established, mature codebase
maintained by a very large development team
with increasing Y-O-Y commits -
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took an estimated 138 years of effort (COCOMO model)
starting with its first commit in June, 2014
ending with its most recent commit 1 day ago
Apache License 2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Private Use
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
Required
Include Copyright
State Changes
Include License
Include Notice
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryJan 11 2026 — Feb 10 2026
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12 Month SummaryFeb 10 2025 — Feb 10 2026
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