# From version 0.3.3 to 0.4.0:

Version 0.4.0 is a special-purpose, limited release for a UBC user needing periodic meshing in 2D.

- Added partial support for periodic meshing in 2D. Any two linear boundary patches can be identified as being periodic with each other. A geometric mapping between the two is automatically determined, and when a vertex is inserted on one periodic boundary, it is automatically created on the other as well. This capability is not likely, at this point, to be robust in the presence of small input angles or input points near (i.e., encroaching on) the periodic boundary.