I really hate to post something like this again, but we really don't have a choice.  A few minutes ago I noticed a message on twitter from Peter Donker, founder of Bring2Mind and creator of the Document Exchange Module (DMX), about a problem with DNN 5.4.  He also included a link to the issue he created in the DotNetNuke Bug Tracker.  I have confirmed that this problem will also cause problems with Active Social and Active Forums.

Please do not upgrade to DotNetNuke 5.4.

I want all our customers to know that we do our very best to stay on top of each DotNetNuke release.  Anytime there is an Alpha or Beta release of a DotNetNuke build we always test it immediately.  The development and release process for DotNetNuke has changed drastically over the past several months. Just like with DNN 5.3 we were not given any opportunity to test 5.4 prior to release.  DotNetNuke Corp.  is saying these changes are for the better, but it seems to be getting worse.  I hope they work out their growing pains soon. 

We will post another update as soon as we know more about this issue.

Thanks,
Will