Upgrade nifi 1.13.2 to 1.24

[#1]

I am currently using NiFi version 1.13.2, and I've set up a new cluster with version 1.24. I'm looking to transfer my existing flow.xml.gz to the 1.24 version. However, a direct copy doesn't seem to work due to significant changes in the flow.xml format.

Questions:

1. How can I successfully migrate to version 1.24?
2. Is it necessary to upgrade NiFi registry versions as well?