Hello, I have a number of sites running vbulletin and very minor bridges. I realize that my concern is somewhat external to xenforo support yet I am interested (since I cannot view the database structure for obvious reasons) in how easy it is to fetch session data and update a field to keep a logged in user logged in. Bridges are simple enough in concept.... if session cookie exists, take hash, compare to database hash table, then either fetch relevant data or create new session. once existing then update lastactivity time and move on. Of course, if there is an API available for external requests that would be even simpler. As vbulletin pricing is extremely ridiculous (especially when one owns several owned licenses) moving to xenforo is perhaps ideal if session tables are relatively simple to update.