Associative Topology Bus > Cross-Release Interoperability > About Working in a Collaborative Environment
  
About Working in a Collaborative Environment
Creo Parametric is upward compatible. You can:
Open a part created in a release of Pro/ENGINEER.
Save the part to update it to the current version of Creo Parametric.
However, when working in a Creo Parametric collaborative environment with different releases of Pro/ENGINEER, there may be a need to open models created in the current version of Creo Parametric in a release of Pro/ENGINEER.
Although you cannot directly open Creo Parametric design models in the Pro/ENGINEER releases, the geometry of these design models can be shared associatively with Pro/ENGINEER releases through the Neutral file format and the Associative Topology Bus (ATB) functionality.