Concerns about upgrading OH2->3 (Jython)

[hafniumzinc (T)]

I had pretty much the same setup as you.

For Jython, I’m now using the Helper Libraries maintained by @CrazyIvan359

Ivan’s Helper Libraries - OH3, Python, JavaScript

Ivan’s Updates to the Helper Libraries I have decided to start maintaining my own fork of the openHAB Helper Libraries, at least for the time being, in light of the lack of activity in the original repo. There has been growing demand for OH3 support among other things, and I wanted to make that available in one place. In the event that the original maintainer returns, I will work with him to get these changes merged into the original repo. I will be maintaining a change log detailing what has b…

All your text based configurations should work in OH3 unless you used v1 bindings in OH2 - those will no longer work and you will need to upgrade to V2/V3 syntax. Common culprits are MQTT and HTTP Binding configurations.

My Jython rules used Python libraries far more than the Java ones usually recommended in these forums so I didn’t have any issues moving over to OH3. However, if your rules used Joda time stuff you’ll have to move to something else - hopefully someone else can recommend what to do there…