@fyhao Great plugin for analytics. I see you're feeding it into https://text-sentiment.p.mashape.com/analyze?
Can you say a bit more about which algorithm they're using? I'm a data scientist and I'd be happy to collaborate a bit on this, but my specialties are Python and R so I'd have to write the machine learning backend in one of those languages for you.
Wow, v0.6.0! That's going to be a fun one.
What I'd recommend is deploying a copy of your forum to a new environment purely to run the upgrade on it, then you can handle any errors that come up, and we can guide you through the process.
Now, of course, ideally, there won't be any errors, but v0.6.0 was a long time ago....