Kotlin
- Kotlin 2.0: Null Safety changes android developers must know – Prakash Sharma
Not only android developers should know these deep insights
<Java / JVM
- JDK 25 — The New Features in Java 25 – Harry
Finally: String templates! And more… - Spring Boot Was Slowing Me Down — Until I Found This One Startup Hack – CodeTalks
5 tips to reduce boot time, e.g. spring.factories and lazy initialization - Forget HashMap — These 3 Hidden Java Maps Made My Code 3× Faster – Concurrent Mind
It’s always better to know your libraries and data structures - Spring Boot 4 Released: A Full Analysis of 7 Major Changes – Prince Bharti
Spring Boot 4 is comming and you should be prepared
Spring Boot
- 10 Spring Boot Secrets for Efficient Coding – Ujjawal Rohra
Advanced tipps, e.g. I never heard of profile groups before - Stop Trusting @Scheduled in Spring Boot: The Cron Job Nightmare No One Warns About – Chronicles
Look especially at issue 3 “Thread Pool Limits: The “Single-Threaded” Surprise”! - 10 Refactorings That Took My Spring Boot Code from Good to Great – Ujjawal Rohra
Sometimes it’s good to remember this basic tips
React / Typescript
- All React Concepts Explained in Just One Read – Daniel Scott
Nice overview for beginners - Mastering TypeScript 5.6: Top 10 Features Explained with Examples – AshokReddy
Look at this features before you work with TypeScript 5.6 - TypeScript for Real-World Projects: Advanced Tricks Every Dev Should Know – The NewGenCoder
Advanced TypeScript features like “Indexed Access Types” - Stop Using useEffect for Everything (This Pattern is 5x Faster) – techWithNeer
Some advanced techniques for newbies
General
- 10 Terminal Tricks Most Developers Don’t Know (But Should) – Rishabh Agarwal
Great tips everybody should know - 7 Tomcat Tuning Secrets That Instantly Boost Spring Boot Performance – Ujjawal Rohra
Take a look at these tips if your application is under heavy load