scalanightly-build

How do I use a nightly build of Scala?

I want to test my code against the latest bleeding edge Scala 2 or Scala 3 nightly.

(Or, I want to use an experimental Scala 3 feature, which are only available in nightly builds.)

What do I do?

Solution

  • There is now (2024) an official documentation page covering this:

    Full details are there, but a short answer is that the easiest way is with scala-cli -S 3.nightly (or 3.3.nightly for LTS, or 2.nightly for 2.13, or 2.12.nightly for 2.12).

    If you aren't using scala-cli, it's not too much harder; see instructions on doc page.