This document summarizes a presentation on Spring Boot revisited with KoFu and JaFu. KoFu and JaFu are new flavors of Spring Boot that use functional programming approaches. KoFu uses Kotlin and functional bean registration, while JaFu uses Java and a lambda-based infrastructure. The presentation discusses the benefits of Kotlin and Java evolutions, an overview of Spring Fu which is an incubator for KoFu and JaFu, examples of applications written in each flavor, efficiency gains from using Kotlin and KoFu, the team working on the project, and a roadmap for upcoming features including native application support and automated transformation between configurations.