Release Dotty 0.18.1-RC1 and 0.17.0

[anatoliykmetyuk]

• Change indentation rules to allow copy-paste #7114 merged
• Finalize the the stable and RC releases
  • Look at the milestone of the RC version being released. Move all the open issues from it to the next milestone.
  • Merge branch 0.17.x into master to guarantee that all of the 0.17.x commits are propagated to master
• Publish artifacts to Maven via CI
  • On branch 0.17.x, set baseVersion to 0.17.0 and git tag it as 0.17.0. This will publish artefacts to Sonatype and GitHub Release
  • Create branch 0.18.x from master
  • On 0.18.x, set baseVersion to 0.18.1-RC1 and git tag it as 0.18.1-RC1. This will publish artefacts to Sonatype and GitHub Release.
  • On master, set baseVersion to 0.19.1
• Update scalaVersion (and, if applicable, the sbt-dotty version) in the Dotty ecosystem projects
  • https://github.com/lampepfl/dotty-example-project
    • Committed to master
  • https://github.com/lampepfl/dotty-example-project/tree/mill
  • https://github.com/lampepfl/dotty-staging.g8
    • PR submitted
    • PR merged
  • https://github.com/lampepfl/dotty.g8
    • Committed to master
  • https://github.com/lampepfl/dotty-cross.g8
    • Committed to master
  • https://github.com/lampepfl/homebrew-brew
    • Committed to master
    • SHA256 sum for the artifact: wget -q -O- https://github.com/lampepfl/dotty/releases/download/0.18.1-RC1/sha256sum.txt | grep ".tar.gz"
  • https://github.com/lampepfl/packtest
    • Committed to master
  • https://github.com/lampepfl/xml-interpolator
    • PR submitted
    • PR merged
  • https://github.com/scalacenter/scastie
    • PR submitted
    • PR merged
    • https://scastie.scala-lang.org/ -> Build Settings -> Dotty mentions 0.18.1-RC1
  • Dotty reference compiler
    • PR submitted
    • PR merged
  • Scalac
    • PR submitted (Upgrade Dotty to 0.18.1-RC1 scala#8387)
    • PR merged
• Announce the release
  • Publish releases for the RC and stable versions on GitHub Releases
  • Publish Blog Post on dotty.epfl.ch
  • Make an announcement thread on https://contributors.scala-lang.org
  • Tweet the announcement blog post on https://twitter.com/scala_lang

Instructions on how to release

[bishabosha]

do we need to release 18.1 to include the 2.13 lib?

[anatoliykmetyuk]

do we need to release 18.1 to include the 2.13 lib?

/cc @smarter

[biboudis]

I am not closing this yet because I am finishing up this scala/scala#8387

[smarter]

On master, set baseVersion to 0.19.1

Wait, why 0.19.1 instead of 0.19.0 ? The only reason for using 0.18.1 was to be able to distinguish nightlies built against the 2.12 stdlib and those built against the 2.13 stdlib, but now that we've switched, we can go back to .0 as normal.

[bishabosha]

It’s enshrined in the blog as the new standard now

[smarter]

Blog posts are mutable :)