https://www.usatoday.com/story/news/world/2019/06/06/our-father-pope-francis-approves-changes-words-lords-prayer/1366459001/
https://www.bbc.com/news/world-latin-america-51474009
https://cruxnow.com/vatican/2020/01/doctrine-is-renewed-with-roots-firmly-planted-in-magisterium-pope-says/
“Christian doctrine is not a system that is rigid and closed in on itself, but neither is it an ideology that transforms with the changing of seasons,” he said Jan. 30, during an audience with cardinals, bishops, priests and laypeople who were taking part in the plenary assembly of the Congregation for the Doctrine of the Faith.
https://www.chicagocatholic.com/vatican/-/article/2019/02/20/pope-francis-and-the-changing-role-of-the-doctrine-congregation
On August 2, Pope Francis ordered a revision to the Catechism of the Catholic Church, updating it to describe the death penalty as “inadmissible” and an “attack on the inviolability and dignity of the person.”
https://www.catholicnewsagency.com/news/pope-francis-and-the-death-penalty-a-change-in-doctrine-or-circumstances-39898
The change to no. 2267 of the Catechism was announced in a letter to all Catholic bishops signed by Cardinal Luis Ladaria, Prefect of the Congregation for the Doctrine of the Faith.
https://www.wsj.com/articles/pope-francis-pushes-out-vaticans-conservative-doctrine-chief-1498920350