Announcement: https://scalameta.org/munit/blog/2020/02/01/hello-world.html
Docs: https://scalameta.org/munit/
MUnit is a new Scala testing library that has no external Scala dependencies and is published for 2.11, 2.12, 2.13 and Dotty. It also supports Scala.js (0.6.x + 1.x) and Scala Native (0.4.x).
You can use MUnit with sbt or any build tool that supports JUnit (for example Gradle and Maven) or the sbt testing interface (for example Mill). You can also run MUnit test suites from IntelliJ, VS Code and Emacs.