Kotlin
- I bet you didn’t know about these features in Kotlin – Nishant Aanjaney Jalan
In fact, I missed data objects somehow, but think the others are also worth to mention. - Short Circuits, Bottom Types, and the Vacuous Boomerang – Sam Cooper
Funny and gives a deep understanding of type inference. - Lazy property delegate – kt.academy
Deep insight into lazy
Spring Boot
- How To Best Use Java Records as DTOs in Spring Boot 3 – Denis Magda
Not only about Records but show also a nice way to shorten queries - Pitfalls on Testing with Spring Boot – Ralf Ueberfuhr
After working a decade with Spring Boot a lot of these are new to me!