Catholics should stop throwing around accusations of heresy, Cardinal Walter Kasper has said. Pope Francis has discussed migration and nuclear disarmament with Austrian Chancellor Sebastian Kurz. A Nigerian archbishop has said he will take no action against those who assaulted him during a funeral. A German diocese has said it will reduce the number of its parishes from 172 to 35 by 2020. Maike Hickson reviews Ross Douthat’s new book To Change the Church. Whitney Bauck asks why Catholic millennials are embracing the mantilla. And the Vatican has announced its first hackathon. Follow me on Twitter @lukecoppen for updates throughout the day.