Technologies and methodologies changes over time. We will have to learn new things and improve ourselves. We will list out few things that we will be focusing on in 2020. The list will be updated as priorities change.

1. Java 11 is the latest LTS version. Our current primary focus is to use at least Java 11 for all code within this website. We will also explore all other Java versions that have come after Java 11.

2. We will have a special focus on learning about performance of Java applications. This also includes Java performance improvements within JVM, garbage collectors and building scalable distributed applications. 

3. There are more features getting added in frameworks such as Spring and Hibernate, like the Spring Boot, Spring Data, Spring Batch etc. We will be spending time for mastering these and helping you master these. 

4. DevOps culture is getting a lot of attention these days. There are many areas within DevOps and automation that we will explore. 

5. We will also focus a bit on security and scalability of applications, especially distributed applications. 

6. Microservices architecture can be used to build better distributed systems instead of using the older monolithic application architecture. We will spend time making the microservice architecture clearer for readers. 

7. We will be shifting our focus from thick UI client technologies such as Swing and JavaFX to JavaScript based thin UI client technologies. There are many technologies out there. We will be focusing on Angular, React and Node.js.

8. We will also be adding more notes on tools like Maven, Git etc. which are essential development tools.

9. Finally, we will learn to develop for the cloud. Cloud specific notes are available at my cloud blog and analytics blog CloudMaterials.com. 

10. We will move all general computer science notes to CseCafe.com.