If you use a scheduler, refer to its page below

Upgrading Portworx Standalone

If you have deployed Portworx manually (not through a scheduler), then you can directly upgrade Portworx in a rolling manner as described here.

On each node in the cluster , please execute pxctl upgrade command as shown below.

# pxctl upgrade px-enterprise
Upgrading px-enterprise to the latest version
Downloading latest PX enterprise layers...
Pulling from portworx/px-enterprise
Digest: sha256:5e6fa51a8cd0b2028e70243d480983df07a419228be85031fca9f5a5be0cad2b
Status: Image is up to date for portworx/px-enterprise:latest
Removing old PX enterprise layers...
Starting latest PX Enterprise...

# pxctl --version
pxctl version 1.0.0-a28e0a4