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+---
+title: Nephio R2 Release Notes
+weight: 1
+---
+
+## Overview
+
+## Prerequisites
+
+Please refer to the [Install Guide]({{< ref "docs/guides/install-guides/install-on-byoc.md#prerequisites" >}})
+for the prerequisites on supported environments.
+
+## Support Matrix
+
+The sandbox environment requires a physical or virtual machine with:
+- Ubuntu-20.04-focal Linux
+- 8 cores
+- 32 GB memory
+- 200 GB disk size
+- default user with sudo passwordless permissions
+
+This install has been verified on VMs running on Google Cloud.
+
+For non-sandbox installations, any conforming Kubernetes cluster is sufficient
+for the Management cluster.
+
+## Features
+
+### API
+
+Common CRDs provided for 5G Core and RAN services
+
+### Web UI
+
+Basic web UI to view and manage the packages and resources within them.
+
+### Packages
+
+* Kpt packages for all [free5gc](https://free5gc.org/) services
+* Kpt packages for all [OAI](https://openairinterface.org/) services
+* Packages for the core Nephio services
+* Packages for the Cluster API services for cluster creation
+* Packages for the dependent services
+
+### Functionalities
+
+* Multi-vendor suppor
+  * API changes 
+  * Generalization 
+  * Parameterization
+  * Reuse of params 
+* Multi-cloud support
+  * Sandbox
+  * GCP
+  * OpenShift
+* OAI components
+  * Deploying many OAI 5G core and RAN components (CU and DU) NFs via Python-based operators
+  * End-to-end call
+* Integration with new release of Porch
+  * Stability
+  * Security
+  * Repo watcher changes
+* Documentation
+  * New web based documentation 
+* Experimental
+  * Nephio SDK
+  * Flux-based deployment of Helm charts
+  * Helm-to-operator converter
+  * Experimental: Topology Controller - Northbound API to express the network topology
+
+
+### Fixes
+
+* Removing rigid dependency on Gitea
+* Fixing the Multus version
+* ConfigMap generator function
+* WebUI configuration options for authentication
+* Reorganizing the package catalog
+* Reduce hardcoding of NF parameters
+* Stability of end-to-end tests
+* Porch improvements
+* Documentation enhancements
+
+## Limitations
+
+* For infrastructure automation, only creation of KIND clusters is
+  supported.
+* Inter-cluster networking is not dynamic so as more clusters are
+  deployed, some manual tweaking will be needed for inter-cluster communications.
+* Provisioning of VLAN interfaces on nodes is manual at this time.
+* Feedback of workload deployments from workload clusters to the Management
+  cluster is limited. You may need to connect directly to the Workload cluster
+  via kubectl to debug any deployment issues.
+* Web UI features are limited to view/edit of packages and resources in those
+  packages and their deployment. Additional features will be added
+  in subsequent releases.
+* When the capacities of the UPF,SMF and AMF NFs are changed, the free5gc Operator on the
+  Workload cluster will instantiate a new POD with correspondingly modified
+  resources (CPU, memory etc.) During this process, the pod will restart. This is a
+  limitation of free5gc.
+* Only Gitea works with automated cluster provisioning to create new
+  repositories and join them to Nephio. To use a different Git provider, you
+  must manually provision cluster repositories, register them to the Nephio
+  management server, and set up Config Sync on the Workload cluster.
+* The WebUI does not require authentication in the current demo configuration.
+  Testing of the WebUI with authentication configured has not been done at this
+  time.
+* The WebUI only shows resources in the default namespace.
+* While many types of Git authentication are supported, the testing was only
+  done with token-based Git authentication in Gitea.
+
+## Known Issues and Workarounds
+
+* When deploying the sandbox environment on an Ubuntu VM running on OpenStack,
+  the deployment may fail. Reinstalling the packages will get around this issue.
+* Occasionally packages may take a long time to be approved by the auto-approval
+  controller. If they seem stuck, restarting Porch and the Nephio controllers
+  may help:
+  ```bash
+  kubectl -n porch-system rollout restart deploy porch-server
+  kubectl -n nephio-system rollout restart deploy nephio-controller
+  ```
+* Occasional calls to `kpt alpha rpkg copy` may fail with a message like
+  `Error: Internal error occurred: error applying patch: conflict: fragment line
+  does not match src line`. Try again in a little while, this may clear up on
+  its own. Restarting Porch may also help.