I had to create the tag_id
column manually as it was throwing an error when updating my existing webhook. I didn't clear the cache as instructed though so it may have been my fault, but I am not sure that would have any effect or not. Maybe this only affects those who upgrade and not new installs.
Everything with the new features seems to be working smoothly though 🙂 The only other important ones might be sanitizing bbcode/markdown from posts (optional) and a more minor would be to truncate posts after X characters (optional) with a message for the user "Click here to read the full post" sort of like flarum email notifications.