Hi,
I will upgrade VPS to the latest possible Ubuntu version which is available with latest MySQL,PP and other services which will be possible and will do everything else that needs to be upgraded in the process and host apps on it for checking it's working with ungraded OS.I have 12 years of experience in Linux servers as well as windows server and services such as cPanel/WHM, Plesk, Virtualmin LAMP Stack, Tomcat, Mysql/Mairadb, Zimbra, Postfix mail server,mailenable ,smarter mail,MSSQL,etc. alongwith cloud providers such AWS, GCP, DigitalOcean, Rackspace, Hostgator, Bluehost, Dreamhost.
Let's discuss.
Thank you