Things I have tried
Is there a url that lists the various Obsidian versions for the “free versions” as well as the “insider versions”
? I updated my account to get the “Insider Versions”
and try them out, but I can not seem to go back to what I had before I did. The current version on the download page says 0.15.9 for the MAC, but I download it and get 0.16.4.
What I’m trying to do
You might have to turn off “Automatic updates” and “Receive insider builds”. And then try reinstalling from 0.15.9.
If those are both checked off, and you still end up with 0.16.4, you might have to delete the app settings folder in ~/Library/Application Support/obsidian (Backup first to be safe, but this shouldn’t affect your vaults in any way. But it will likely forget your list of open vaults.)
Thanks; erasing the library as suggested worked.

thanks for the quick reply.