# Foojay Podcast #63: How do we keep your Java applications up to date and secure?

> Do you want to bring your system from Java 8 to 23? Did you know that Java 17 already has 13 security releases? And that you can use tools like OpenRewrite to help you update your code?

- URL: https://foojay.io/today/foojay-podcast-63/
- Published: 2024-12-16
- Authors: Charl Fasching, Frank Delporte, Gerrit Grunwald, Johan Janssen
- Categories: Java, Java Core, JEPs, OpenJDK Migration, OpenRewrite, Podcast, Security


## Last month, I published a Foojay article about [the risks in systems that are stuck on old or outdated Java versions](https://foojay.io/today/why-java-8-is-a-ticking-time-bomb-hiding-within-your-organization/) and got [a lot of feedback from developers](https://foojay.io/today/how-organizations-became-stuck-on-outdated-java-versions/). Most of them want to move on but get stuck on management decisions, outdated production environments, or one of the many other reasons that keep systems stuck on old Java versions and dependencies.

Do you want to bring your system from Java 8 to 23? Did you know that Java 17 already has 13 security releases? And that you can use tools like OpenRewrite to help you update your code?

## Video

{{< youtube EjDIBGHd33o >}}

## Podcast Apps

You can listen and subscribe to the Foojay Podcast on:

* [Spotify](https://open.spotify.com/show/6CpTfgn9LirzJGAtc4ICdQ)
* [Apple Podcasts](https://podcasts.apple.com/be/podcast/foojay-io-the-friends-of-openjdk/id1652281304)
* And most others...

## Guests

* Gerrit Grunwald: <https://www.linkedin.com/in/gerritgrunwald/>
* Jonathan Schneider: <https://www.linkedin.com/in/jonkschneider/>
* Martijn Dashorst: <https://www.linkedin.com/in/dashorst/>
* Carl Wanting: <https://www.linkedin.com/in/carl-wanting-638943/>
* Charl Fasching: <https://www.linkedin.com/in/charl-fasching-77843288/>
* Johan Janssen: <https://www.linkedin.com/in/johanjanssen2001/>

## Content

00:00 Introduction of the topic and guests

01:35 Gerrit Grunwald about CVE fixes in Java updates   

04:58 LTS (Long Term Support) versus STS (Short Term Support)

9:45 Jonathan Schneider about the goal of OpenRewrite   

12:15 Upgrade all at once, or step by step?   

14:03 Who creates the recipes?   

15:08 What Moderne is offering on top of OpenRewrite   

17:29 How to use OpenRewrite in your IDE   

18:32 Companies maintaining recipies for their products   

20:05 Jonathan's view on the importance of upgrades   

26:56 Other use cases for OpenRewrite

29:03 Martijn Dashorst: Updating legacy projects 

33:12 Carl Wanting and Charl Fasching: Migrating projects

39:43 Johan Janssen: Java evolutions and upgrading

42:51 Outro