Upgrading to the Newest Version of Fabric¶
At a high level, upgrading a Fabric network to v1.3 can be performed by following these steps:
- Upgrade the binaries for the ordering service, the Fabric CA, and the peers. These upgrades may be done in parallel.
- Upgrade client SDKs.
- Enable the two v1.3 capabilities.
- (Optional) Upgrade the Kafka cluster.
To help understand this process, we’ve created the Upgrading Your Network Components tutorial that will take you through most of the major upgrade steps, including upgrading peers, orderers, as well as the capabilities. We’ve included both a script as well as the individual steps to achieve these upgrades.
Because our tutorial leverages the Building Your First Network (BYFN) sample, it has certain limitations (it does not use Fabric CA, for example). Therefore we have included a section at the end of the tutorial that will show how to upgrade your CA, Kafka clusters, CouchDB, Zookeeper, vendored chaincode shims, and Node SDK clients.
If you want to learn more about capability requirements, check out the Capability Requirements documentation.
With the removal of the old Event Hub in v1.3, please make sure to update your applications to be compatible with the Peer channel-based event services, otherwise your applications may break after upgrade.