I noticed there was a very small memory leak in the way CoreFoundation objects were being used on Mac OSX. I submitted that patch months ago to the BU team to fix it, and it's been accepted and merged into their repository. I wanted to bring that patch here to our project, just as a small nit, because it bugs me the way Core originally wrote this code. They clearly don't know how to use the CoreFoundation API ;)
Here is the reference in the BU repository:
https://github.com/BitcoinUnlimited/BitcoinUnlimited/pull/507/commits/045a999785d213a2366158fc4372f51041800e7a