The latest episode of JAMstack Radio features a conversation between Phil Hawksworth, Technical Director at R/GA, and Eli Williamson, Creative Director at Netlify. They discuss isomorphic rendering in the JAMstack, highlighting its performance improvements. The discussion focuses on optimizing website performance by empowering frontend developers, utilizing static sites, and adopting server-less architectures. Phil's talk at JAMstackSF is also mentioned, which was given by Brian Douglas, Founder of OpenSauced.