GEDCOM X 0.5.0 has been released.

• There was some consolidation of the type names so that types are now in the http://gedcomx.org/ namespace and type names have been capitalized to conform to convention.
• The notion of a Family was added to support the grouping of two parents and a list of children.
• The notion of a Note was added to support collaboration among contributors that want to add a note without having to modify the data values.
• The JSON serialization format was formalized with regards to extension elements. For more information, see JSON Format.