mlmmjadmin upgrade tutorial (RESTful API server used to manage mlmmj mailing list)

Warning

If you're running an old Linux/BSD release which doesn't have Python 3.5+, please stay with mlmmjadmin-2.1, it's the last release supports Python 2. if you need to upgrade to mlmmjadmin-2.1, please follow this upgrade tutorial instead: Upgrade mlmmjadmin to v2.1.

Summary

Upgrade mlmmjadmin

cd /root/
wget https://github.com/iredmail/mlmmjadmin/archive/3.2.0.tar.gz
tar zxf 3.2.0.tar.gz
cd mlmmjadmin-3.2.0/tools/
bash upgrade_mlmmjadmin.sh