Not sure if this is the right channel, but the ClojureScript Quick Start mentions: > On Windows you will need https://www.oracle.com/java/technologies/javase/jdk21-archive-downloads.htmland the https://github.com/clojure/clojurescript/releases/download/r1.12.145/cljs.jar. This is slightly misleading as it applies to all operating systems. Java 21 is now required for the CLJS compiler as of May 2025: https://clojurescript.org/news/2025-05-16-release
Related thread in #C053AK3F9 - https://clojurians.slack.com/archives/C053AK3F9/p1785035271614819