Its now April 2019 and the last Bird Journal IOC update was June 2016 (IOC 6.2). The current version published by IOC is 9.1. Its very disappointing when it takes years to update a fundamental taxonomy. This should be the core of Bird Journal and updated as and when a new version is published.
Unfortunately I am starting to get the feeling that the development (and updating of Bird Journal) is grinding to a halt. We get the occasional new or updated taxonomy created by users themselves, but now almost no in-house developments. Its a shame to see what was a great product apparently stagnate and possibly die:(