Francis has overseen synods on the family (2014), on youth (2018), and on the Church in the Amazon region (2019). In 2019 Francis' apostolic constitution "Episcopalis communio" allowed that the final document of a synod may become magisterial teaching simply with papal approval. The constitution also allowed for laity to contribute input directly to the synod's secretary general. Some analysts see the creation of a truly synodal church as likely to become the greatest contribution of Francis' papacy.