Five years ago we moved Kotlin into the Adopt ring, and today many of our teams report that Kotlin is not only their default choice on the JVM but that it has displaced Java almost completely in the software they write. At the same time, microservice envy appears to be fading — we’ve noticed people starting to explore architectures with larger deployable units, using frameworks like Spring Modulith among others. We're aware of many good Kotlin-native frameworks and have mentioned some of them previously; however, in some cases, the maturity and feature-richness of the Spring framework is a real asset, and we've been using Kotlin with Spring successfully, usually with no or only smaller issues.