How to quit scala 2.11.0 REPL?

I ran into the same issue on upgrade, just use colon q.

:q

Additionally, exit was deprecated in 2.10.x with sys.exit suggested instead, so this works as well:

sys.exit

As a side note, I think they did this so you can distinguish between exiting the scala console in sbt and exiting sbt itself, though I could be wrong.

You options to leave the REPL as stated in the answers before are:

:quit
:q

Ctrl + d // Unix
Ctrl + z // Windows

sys.exit

Use the end of file characters. Ctrl-D on linux, Ctrl-Z on Windows.

Using the :help command on my 2.10.3 REPL gets me this hint:

:quit        exit the interpreter

I don't know whether :quit is still there in 2.11.0 or not though.