How do you know that something was not broken? Do you have some visibility into every SmartThings hub that I’m not aware of? Why are you blaming @tpmanley for this? He didn’t personally cause problems with your hub but he’s one of the people who can help. I can understand your frustration. I too have put up with Z-wave device problems on my system for a very long time, however making it personal with the staff serves no purpose.
The fact is, there have been Z-Wave issues with SmartThings and large to mid-sized systems for a very long time. I happen to have a general understanding of the underlying issue and know that it’s not yet considered to be fixed. Is this release better for everyone? Clearly not, but it improves stability to many. Is there more work to be done to stabilize Z-Wave across all networks? Absolutely.
I also know support is working on this. Z-Wave debugging has been enabled on my hub for a few days. I hope they’re able to capture some critical data that leads towards a more complete fix. In the meantime there’s not much any of us can do but let the smart people do their work.