Now that XenForo is on it's way to a new 1.2 version I was thinking to make searching resources easier that you should create Prefixes that developers can use to Prefix their Add-ons with which version of XenForo their respective Add-on is meant for. Much like Thread Prefixes.
Only stable versions of XenForo of course should be prefixed.
1.1.5 / 1.2 (When it goes gold) / 1.futureversion / etc...
Additionally, allowing users to search the RM for Add-ons that pertain to their version would be helpful.