The ARRL have added new Amateur / Ham Radio Extra questions to the question pool, placing greater emphasis on Digital, SDRs and Propagation
The extra questions will become part of the question pool from 1st July 2016, and will be valid through to 30th June 2020. There are also some minor corrections to existing questions.
Some questions were removed due to the topics being of less importance than currently valued by the Amateur / Ham Radio community.
The amended question pool now stands at 712 questions.
The complete question pools for the Amateur Technician, General and Extra exams can be downloaded - http://www.ncvec.org/