Merge pull request #760 from lrytz/imm-child Change Node.child and Node.attribute return type to immutable.Seq on 2.13+

Update nscplugin, sbt-scala-native to 0.5.0 (#716) 

update version policy for minor release 

Merge pull request #678 from dubinsky/equality-inequality Equality cleanup:

Update sbt-scala-native-crossproject, ... to 1.2.0 

Merge pull request #542 from SethTisue/issue541 

add Scala 3.0.0 to crossbuild (and drop -RC2) (#522) 

backpublish 2.0.0-RC1 for Scala 3.0.0-RC3 

Merge pull request #503 from SethTisue/scala-3.0.0-RC2 

support Scala 3.0.0-RC1 (and drop 3.0.0-M2) (#493)