Enhancements / Additions:

• Significant enhancements to the Composite surface functionality.  The Composite surface functionality was revised so that it no longer requires gluing of the individual component surfaces to create the composite background grid, which greatly enhances robustness.  The user-specified composite glue tolerance that was introduced in Version 4.70 is no longer needed.
• Utilized bug in Save State as a feature. Underlying NURBS surfaces are not discretized until deleted (recalled). This speeds up the rereading of the data.

Bugs Fixed:

• Corrected memory leak related to RePick.
• Corrected memory leaks related to Composite surfaces.
• Corrected problems with SolidMesh Save State: 
  • Eliminated test that did not allow CAPRI data to be read in.
  • Trimmed surfaces did not delete due to information not set on underlying NURBS surface.
  • Corrected problem when writing save-state file with entities selected.

Known Problems and Limitations:

• Trimming IGES-tagged periodic surfaces.
• Limitations with the discrete geometry feature detection algorithms.