I've mentioned this to a few people off the board, but this really does need general discussion. Xenforo 1.5 is now out of support, and most of the add-ons are also out. We could upgrade to 2.2 but this will cost: - we'd need a licence, - we'd need to repurchase all the add-ons, - some would not work (e.g. the Librarian) - we'd need to rework with members integration with the main site. - and we'd need to transition all the content On the other hand if we don't, Xenforo 1.5 will stop working when our server stops supporting php 5.6, and migrates to php 7, so it is a concern. It isn't an immediate concern, but it will become one.