The Defense Department has postponed a planned Defense Acquisition Board meeting for F-35 follow-on modernization until this fall, according to Pentagon acquisition chief Ellen Lord. The joint program office originally expected its new Block 4 modernization plan, which will incorporate a concept for more rapid, iterative software production called Continuous Capability Development and Delivery, to be approved in October 2017. That date was then pushed until this June as the department worked to finalize cost and schedule details. Lord told...