Y'know I haven't tried to shift my presets to the new build, but they are saved to your computer as "*.hfpr" files, so a Windows search on your system should bring them all up. Scan the list, look for yours in the prior build and copy them over to the corresponding folder in the new build! My guess is they'll pop up in your Effects Panel, no problem.
That's how I moved all my HF 2017 presets to v8-18.
Thanks, that might work. I wound up just putting all the presets I cared about into a project, opened it into the new version and resaved the presets. But anyone else should try your method first.
Honestly, your method is probably faster and easier for the non-tech inclined.
Project files are how I move my custom panel layouts between versions, since I have "save screen layout in project file" enabled.