6f21ed28_int_2013___My_SharePoint_Space__Description
[Feature] Search capabilities [Reason] Alignment of basic capabilities between SharePoint Server and SharePoint Foundation. [Description] 
The search capabilities of SharePoint Foundation 2013 have changed, and are now based on the same search implementation as SharePoint Server. This provides many improvements, but also means that the search configuration is very different.
Deprecated Features in SharePoint 2013 | My SharePoint Space
Description