As I reported earlier, the change of address tool does not support HTTP to HTTPS migrations and John Mueller of Google said “just use normal 301s.”

But how important is the change of address tool when migrating to a new domain name?

John Mueller responded to a Stack Exchange thread about a site migration and said:

So John said in terms of using the change of address tool:

(1) Use it “right away”

(2) The tool helps “confirm” that you want to transfer everything.

(3) It speeds things up a tiny bit

So those who migrate from HTTP to HTTPS do not benefit from the change of address tool.

Forum discussion at Stack Exchange.