Kotlin
- Understanding Context Parameters in Kotlin 2.2.0 – Carrion.dev
New language feature that improves extension receivers e.g. in logging and dependency injection - Kafka Clients With Avro – Schema Registry and Order Events – Jaehyeon Kim
Short introduction to setup a Avro project
Java
- JDK 24 is Here! Game-Changing Features Every Java Developer Must Know – Amrit Pandey
Java changes little by little, most interesting for me is the module import decleration - 10 Java Stream Tricks Only Senior Developers Know (Number 7 is Genius!) – The Code Alchemist
Number 7 is Ok but I found Number 2 (iterate with limit) better - The Truth Behind Java Virtual Threads: What Every Developer Must Know in 2025 – Gaddam.Naveen
Simple explanations with a lot of examples - Stop Misusing Java Streams in Java Projects – Ramesh Fadatare
Get better insights into streams
Spring Boot
- Spring Boot Is Slow? Here’s How I Got Startup Time Under 2 Seconds – Himanshu
Useful and realistic tips to improve the startup time - Why You Should Never Upload Large Files Directly in Spring Boot (Do This Instead in 2025) – Himanshu
Maybe you haven’t thought of some issues - Spring’s Virtual Threads: Like Java’s, But With a Built-In Spring Booster! –Full Stack Developer
First step into Spring Boot with Virtual Threads - 10 Spring Boot Tricks Every Java Developer Should Know in 2025 – Tech Burner
I love best: Virtual Threads, RestClient and GraalVM - The Hidden Spring Boot Features That Make Kubernetes Deployments Actually Enjoyable – DevDecoded
Shows with several examples how Spring Boot and Kubernetes can work together
Architecture
- Stop Using the Default Spring Boot Structure: A Modern Guide to Clean, Scalable Microservices in 2025 – Himanshu
For me the best working project structure (has nothing to do with Spring Boot)
General
- The 10 Best New CSS Features in 2025 Already Supported in All Major Browsers – Karsten Biedermann
Really great new features, have a look - Why More Devs Are Leaving VS Code for Zed (It’s Crazy) – Ask With Ai
Sometimes you should have a look to a new editor/IDE – maybe now is the time - How I Cut My Gradle Build Time by 50% – James Cullimore
Great tips, e.g. update your tools, use caching, build in parallel, optimize JVM parameters and decouple as much as you can - 7 UI UX Principles Every Dev Should Know – Daniel Scott
Smart tips with some humor, and he mentioned “Don’t make me think!” (you must have read)