--- title: "What’s New in Calico v3.7" source: "https://wordpress-1075849-4005834.cloudwaysapps.com/blog/whats-new-in-calico-v3-7/" --- [Technical Blog](https://wordpress-1075849-4005834.cloudwaysapps.com/category/technical-blog/) # What’s New in Calico v3.7 By [Casey Davenport](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/author/caseydavenport/) on May 01, 2019 • 2 min read We are very excited to announce Calico v3.7. Here are some highlights from the release. ## Native support for VXLAN encapsulation Calico now includes native support for encapsulating traffic between workloads using VXLAN, in addition to existing support for IP in IP encapsulation. While IP in IP is slightly more efficient in terms of encapsulation overhead, there are some networks that do not allow IP in IP traffic, for example, Azure and DigitalOcean. VXLAN support in Calico means you can now use Calico to network workloads in these environments. For more information, see [the Calico documentation](http://docs.projectcalico.org/v3.7/networking/vxlan-ipip). ## Optimized denial-of-service protection for host endpoints using XDP Calico now automatically enforces specific types of blacklist policies at the earliest possible point in the packet processing pipeline, including offloading to NIC hardware whenever possible. For more information, see the [HOWTO guide](http://docs.projectcalico.org/v3.7/security/defend-dos-attack) and our upcoming blog post. ## Namespaced NetworkSets Global network sets have existed in Calico since v3.1.0. They provide a way to group IP addresses and apply labels to the group to be used in a global network policy. Calico v3.7.0 introduces support for the NetworkSet resource, which allows for the same functionality but within the scope of a particular Namespace. This is useful if you want to be able to reference a set of IP addresses using a selector from a namespaced network policy resource. For more information, see [the Calico documentation](http://docs.projectcalico.org/v3.7/reference/calicoctl/resources/networkset). ## Learn more To find out more details about all the features and changes in Calico v3.7, check out the [release notes](http://docs.projectcalico.org/v3.5/releases/). Or, try it out in few minutes by following the [Quickstart guide.](http://docs.projectcalico.org/v3.5/getting-started/kubernetes/) ————————————————- [**Free Online Training**](https://wordpress-1075849-4005834.cloudwaysapps.com/events/) Access Live and On-Demand Kubernetes Tutorials [**Calico Enterprise – Free Trial**](https://www.calicocloud.io/home) Solve Common Kubernetes Roadblocks and Advance Your Enterprise Adoption [Open Source](https://wordpress-1075849-4005834.cloudwaysapps.com/tags/open-source/)[Release](https://wordpress-1075849-4005834.cloudwaysapps.com/tags/release/)[Project Calico](https://wordpress-1075849-4005834.cloudwaysapps.com/tags/project-calico/) Add Tigera as a preferred source on Google to see more of our content in your search results. [![Add as a preferred source on Google](https://wordpress-1075849-4005834.cloudwaysapps.com/app/themes/tigera2021/dist/img/google-preferred-source-light.png)](https://www.google.com/preferences/source?q=tigera.io) ## Related posts [![What’s New in Calico: Winter 2026 Release](https://wordpress-1075849-4005834.cloudwaysapps.com/app/uploads/2026/03/What-is-new-in-Calico-winter-2026.png)](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/whats-new-in-calico-winter-2026-release/) [Company Blog](https://wordpress-1075849-4005834.cloudwaysapps.com/category/company-blog/) #### [What’s New in Calico: Winter 2026 Release](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/whats-new-in-calico-winter-2026-release/) By [Veronika Smolik](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/author/veronika-smolik/) on Mar 4, 2026 AI Powered Intelligence, Unified Traffic Observability and Scalable Infrastructure Management As anyone managing one or more Kubernetes clusters knows by now, scaling can introduce an exponentially growing number of problems. The sheer volume of metrics,... [Read more](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/whats-new-in-calico-winter-2026-release/) [![Join Calico at KubeCon Europe 2026: AI Agents, Silent Discos, and Dutch Delights!](https://wordpress-1075849-4005834.cloudwaysapps.com/app/uploads/2026/02/Blog-Kubecon-Euro-2026-.png)](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/calico-at-kubecon-cloudnativecon-europe2026/) #### [Join Calico at KubeCon Europe 2026: AI Agents, Silent Discos, and Dutch Delights!](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/calico-at-kubecon-cloudnativecon-europe2026/) By [Tigera Team](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/author/marketingtigera-io/) on Feb 25, 2026 The cloud-native community is heading to the historic canals and vibrant tech scene of Amsterdam for KubeCon + CloudNativeCon Europe 2026! From March 23–26, Amsterdam will be buzzing with the latest in Kubernetes, platform engineering,... [Read more](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/calico-at-kubecon-cloudnativecon-europe2026/) [![Project Calico 3.30+ Hackathon: Show Us What You Can Build!](https://wordpress-1075849-4005834.cloudwaysapps.com/app/uploads/2026/02/Blog-Hackathon-.png)](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/project-calico-3-30-hackathon-show-us-what-you-can-build/) #### [Project Calico 3.30+ Hackathon: Show Us What You Can Build!](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/project-calico-3-30-hackathon-show-us-what-you-can-build/) By [Tigera Team](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/author/marketingtigera-io/) on Feb 17, 2026 Build the Future of Cloud-Native Networking! 🚀 The Calico community moves fast. With the releases of Calico 3.30 and 3.31, brings improvements in scalability, network security, and visibility. Now, we want to see what YOU... [Read more](https://wordpress-1075849-4005834.cloudwaysapps.com/blog/project-calico-3-30-hackathon-show-us-what-you-can-build/)