In previous GeneXus versions, object names were prefixed with a letter identifying their type. Procedure names were prefixed with a 'P', transactions with a 'T', and so on. In GeneXus X objects are no longer prefixed with a letter.
When a Knowledge Base is converted or an XPZ from previous versions is imported, the prefix is preserved to provide compatibility; however if a new object is created using GeneXus X the name is no longer prefixed.