Almost complete upgrading from 2.4 to 2.9+.
First I ran:
cd /var/discourse
git pull
./launcher rebuild app
I’m now seeing this, and wondering in which order to run the three commands, and when to reboot the server.

./analyze_new_cluster.sh
./delete_old_cluster.sh
./launcher rebuild app
Also not 100% sure how/when to execute ALTER EXTENSION procedure:

Thank you in advance!