OH3 Prowl support?

After upgrading to OH3, I see that Prowl is no longer working.
Has this been discontinued or just not updated to work on OH3?

prowl is an openhab1 action. openHAB 1 add-ons are not supported in openHAB 3. This explains why you don’t see it anymore. So unless someone creates an openHAB 3 version it’s won’t be available anymore.

Looking at the code it should not be to difficult to convert to an openHAB 3 binding. However it uses an obscure library that doesn’t seem to be maintained since 2015. So most work is probably to get this library part in shape again, as it’s allowed to just include the jar as done in the openHAB1 binding.