Scala 3.6 is now releasing Release Candidates right? That’s what Scala 3.6.1 is IIUC…
https://scastie.scala-lang.org/ is my preferred way to give short, verifiable code examples of issues with Scala releases. Could it please be updated to support Scala 3.6 so I can post issues I’m seeing in this version 
We’ll add the missing option soon.
As a workaround, you can specify an arbitrary scala version to use in Build Settings → Extra Sbt Configuration. Here’s an example Scastie - An interactive playground for Scala.
Also, posting issues using dedicated template is typically enough for the compiler team to start working on the issue. We do prefer self-contained minimization, but if required posting a code with Scala (scala-cli) using directives to specify dependencies/settings is sometimes enough.