# What’s New in 0.12.2¶

## Summary¶

This release of OpenMC is primarily a hotfix release with numerous important bug fixes. Several tally-related enhancements have also been added.

## New Features¶

Three tally-related enhancements were added to the code in this release:

• A new CollisionFilter class that allows tallies to be filtered by the number of collisions a particle has undergone.
• A translation attribute has been added to MeshFilter that allows a mesh to be translated from its original position before location checks are performed.
• The UnstructuredMesh class now supports libMesh unstructured meshes to enable better ingration with MOOSE-based applications.

## Contributors¶

This release contains new contributions from the following people: