What was exactly the attach point bug? We use them intensely and, although we haven't experienced any issues so far, it would be nice to know what this update fixes.
Do you recommend to upgrade to this latest version once it's a stable release, or should we stick to the previous one (v2.4) since we will keep using Unity 4.3.3? We do not use tk2d UI features, which seems to be the main focus of this new ver.