PDBx:version 

The version of the software.
v1.0
beta
3.1-2
unknown

Element Information

Model

Source 

<xsd:element name="version" minOccurs="0" maxOccurs="1" nillable="true" type="xsd:string">
  <xsd:annotation>
    <xsd:documentation xml:lang="en">The version of the software. v1.0 beta 3.1-2 unknown</xsd:documentation>
  </xsd:annotation>
</xsd:element>

Sample