Most projects that updated stick to the long-term support versions 11 or 17. The new cadence created the illusion of not much happening in between and after that, but nothing could be further from the truth - with new features like pattern matching, virtual threads, and structured concurrency, Java is moving faster than ever.
In this talk, we'll take a simple Java 17 code base, update it to 21, and refactor it to use the new Java capabilities.
I also embedded them below. If they're focussed, you can navigate with arrow keys or swipes (they're two-dimensional, with chapters on the horizontal axis and chapter content layed out vertically). Use Page Up/Down for linearized order and ? for more shortcuts.
Here's a good recording of the talk. I hope you'll like it.
I gave this talk a few times before. See below for links to slides (as they were at that very event), videos, and other information.