[Release] lighty.io 23

lighty.io 23 is here!

This release continues to emphasize our commitment to providing a lightweight, high-performance alternative to the standard OpenDaylight distribution, while keeping pace with the latest upstream developments.

lighty.io 23 is a comprehensive update that syncs lighty.io with the newest OpenDaylight 2025-09 Vanadium release, ensuring that our users have access to the latest improvements in the SDN world.

Highlights

The focus of this release has been on modernization, security, and performance. Here are the key highlights:

• OpenDaylight Vanadium integration: Full integration and synchronization with the ODL 2025-09 Vanadium release, including dependencies on odlparent 14.1.6.

• Netty RESTCONF endpoint: Introduction of a new Netty-based Restconf endpoint, providing a more modern and efficient way to handle Northbound interfaces.

• Vanadium integration improvements: Enhanced stability and performance through deep integration with the Vanadium platform.

• RNC App enhancements: Added a sample configuration for Call-Home in the Remote Netconf Connector (RNC) application.

• Infrastructure modernization: Significant bumps to core dependencies, including Spring Boot 3.5.8, Alpine 3.23.3, and gRPC Netty 1.78.0.

Updates across all tools

Alongside the core project, we have also released major updates for our open-source tools, to ensure a seamless development experience.

lighty.io NETCONF Simulator 23

Simulate 100s to 1000s of NETCONF devices.

The lighty-netconf-simulator has been updated to version 23 to maintain perfect compatibility with the core release.

• Vanadium Support: Updated to work natively with ODL Vanadium.

• Cleanup & Optimization: Removed redundant scripts and synchronized testing dependencies (JUnit, XMLUnit) with the core lighty.io project.

• Deployment Fixes: Resolved issues with GHCR authentication and docker image naming for smoother CI/CD integration.

YANG Validator 23

Validate YANG modules using the YANG-Tools parser.

The lighty-yang-validator reaches version 23.0.0, providing robust validation tools for your YANG models.

• Dependency hardening: Updates to org.json and logback-core to ensure the validator remains secure and performant.

• Vanadium readiness: Fully compatible with the latest YANG handling improvements introduced in the Vanadium release.

Why Upgrade to version 23?

This release is about keeping your network controller stack modern. By moving to lighty.io 23, you benefit from:

Reduced footprint: Continued optimization of the OpenDaylight core for edge and cloud-native deployments.

Modern security: Constant patching of vulnerabilities through updated base images and libraries (Snyk-verified upgrades).

Improved developer experience: Better sample configurations and fixed documentation artifact references.

Get started – today

The latest releases are available immediately on GitHub:

• lighty.io 23.0.0 Release Notes

• lighty-netconf-simulator 23.0.0

• lighty-yang-validator 23.0.0

We want to thank our developers and the community for their feedback and support in making this release possible. If you have any questions or need help with migration, feel free to reach out to us on our social media or GitHub Issues!