Oracle just released ApEx version 2.2. Here is the list of changes. Most of the changes do not come as a surprise as they were already mentioned in the roadmaps as stated earlier this year.
Most interesting new features include the packaged installation, which makes deployment easier. Also Component-level export is interesting for those who want to reuse functionality in other applications. It might put some momentum in the ApEx community, when smart solutions can be exchanged more easily.
Further, there are the usual improvements in navigation and wizards. Also help is improved and the support of the TIMESTAMP datatype is added.