We offer tutorials to get you started with Hyperledger Fabric. The first is oriented to the Hyperledger Fabric application developer, Writing Your First Application. It takes you through the process of writing your first blockchain application for Hyperledger Fabric using the Hyperledger Fabric Node SDK. For a more developer focused experience for developing apps, check out Developing Applications.
We also have a tutorial oriented towards the Hyperledger Fabric network operators, Building Your First Network. This one walks you through the process of establishing a blockchain network using Hyperledger Fabric and provides a basic sample application to test it out.
There are two tutorials for updating a channel: Updating a channel configuration and Updating the capability level of a channel, while Upgrading your components shows how to upgrade components like peers, ordering nodes, SDKs, and more.
If you have questions not addressed by this documentation, or run into issues with any of the tutorials, please visit the Still Have Questions? page for some tips on where to find additional help.