Clojurians Log v2

https://clojure.github.io/tools.build/clojure.tools.build.api.html#var-compile-clj you can use :java-opts with ["-target" "8" ,,,] for that

those opts affect javac and looking at the source, compile-clj will invoke java with clojure.main that executes a script generated on the fly, that calls clojure.core/compile a bunch. And I assume that always produces class files in the version of the current JVM

you're right

It is not about compile-clj, it is in clojure.core. Clojure uses a Java library to emit it's bytecode: asm2 And it has no options to support more than one version Currently, it dont use any asm operation that is not supported by jvm1.8

Oh cool

but will it mark the file as java 8?

probably

Yes

Current versions of Clojure only emit Java 8 bytecode

Specifically Clojure 1.10-1-12 emits Java 8 bytecode, older emits Java 6 bytecode

We expect to move this baseline in next version after 1.12

Thanks, that is sufficient

Where are you going to move it to? Any gains from that?

Haven’t decided yet

Moving to newer bytecode version gives us access to newer JVM features