Foreman master and foreman proxy - which one to upgrade first?

My Foreman master and (tftp) proxy version is 1.20.1 and we want to upgrade those to most latest version of Foreman master and Foreman proxy. My question is if there is any specific sequence we should follow (master first or proxy first to upgrade)? One foreman master and 10 foreman proxies is what I have for all my remote locations.

Expected outcome:
Foreman version 1.23 (currently at 1.20)

Foreman and Proxy versions:

Foreman and Proxy plugin versions:

Distribution and version:

Other relevant data:

According the Satellite 6.5 upgrade guide you need to upgrade Satellite (foreman) server first.


Thanks a lot for your reply. I also found the reference for what you mentioned. Thanks again for the hint.