If you can’t get more insights here but want to use an up-to-date version of n8n, you can always set up a new instance btw 
On Server setups - n8n Documentation we have a few guides for popular services (such as Digital Ocean or Google Cloud, and also including Heroku). I also wrote a private guide for Oracle Cloud a while back (who offer a sweet free tier as @David_Go pointed out).
Copying workflows over should also work fine across different versions of n8n as long as the destination is newer than the source (and not the other way around).