0.9.0 to support Factorio 2.0 posted!
Heat exchanger monitoring is disabled at the moment - the mod API removed the old ways I had to calculate it, and no immediately obvious substitute is out there.
I also expect other issues, especially as other mods get updated. I did some basic testing, but please post here on any crashes. If you see something reporting weird, mouse over it and run /umdebug from the console window, and include that output as well.