The Java Spring Framework downgrade
In SDL Digital Experience Accelerator (DXA) 1.3, the supported Java Spring Framework version has been downgraded from 3.2.8 to 3.1.4 to comply with the version supported by SDL Tridion 2013 SP1 Content Delivery.
If you already have any existing DXA Java implementations which use features specific for Java Spring Framework 3.2, they might not work with DXA 1.3.