Only change from Akka 1.1 is upgrade to Scala 2.9.0-1.
We recommended that you use the new Scala version (sbt build.properties):
build.scala.versions=2.9.0-1
sbt.version=0.7.7
Note that if you have defined dependencies in your sbt project definition with %% it will look for 2.9.0-1 version of the library. If the library is not deployed for Scala 2.9.0-1 yet you can use the 2.9.0 version by defining it like this:
lazy val scalatest = "org.scalatest" % "scalatest_2.9.0" % ScalatestVersion % "test"
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Patrik Nordwall
Typesafe - Enterprise-Grade Scala from the Experts
Twitter: @patriknw