Thanks to your feedback and gracious pull requests we have several enhancements and bug fixes.
API:
Check to see if the OCompoundProperty already exists before trying to create a new one. (PR200, Issue 188)
Explicitly include errno.h for compilers that don't bring it in as part of the other includes. (Issue 199)
Maya:
Support reading and writing nParticles as I/OPoints. (PR163)
Houdini:
Update the example SOP to work with Houdini 16.5, support layering, and take advantage of the Houdini API for faster geometry building. (PR196)