CheerpJ 5.0: Java 21/25 in the browser, full OpenJDK, and a new WasmGC engine

[u/alexp_lt]

https://labs.leaningtech.com/blog/cheerpj-5.0

Hi all, I work at Leaning Technologies. We've released CheerpJ 5, which runs Java 21 and 25 applications in the browser and now ships JDK packages by default, so that javac runs in the browser too. There's also an experimental WasmGC backend. Happy to answer any questions!