2,1,4 doesnt apply ip aliases to CARP interfaces
The upgrade from 2.1.3 to 2.1.4 broke ip aliases on carp interfaces for my cluster. 2.1.3 works fine, my 2.1.4 secondary box wont load any ip aliases on carp interfaces, breaking CARP on any interface with more than 1 ip assigned to it.
have a look here: https://forum.pfsense.org/index.php?topic=78611.0
The problem is, that on 2.1.4 a commit change broke writing of those aliases to the system (you'll see that on the CARP IF there are no aliases). If you use the patch JimP provided, the split brain and IFalias problem will be gone.