The Hasura Community Call Roundup for May 2021 highlights the latest updates and demos from the monthly event. Topics covered include Tanmai's product update on Inherited Roles and Schema Sharing, Vamshi's discussion on one-to-one relationships and data sources, Solomon's presentation on Client SSL Certificates, Tiru's security updates, and a community demo by Gus Fune. The next Community Call is HasuraCon'21, scheduled for June 23-24, 2021.