sbt/notes/0.13.9/cross-scala-versions-defaul...

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[@dwijnand]: http://github.com/dwijnand
[1828]: https://github.com/sbt/sbt/issues/1828
[1992]: https://github.com/sbt/sbt/pull/1992
### Fixes with compatibility implications
- Starting 0.13.9, `crossScalaVersions` default value is fixed back to the older 0.12.x behavior. See below for
details
### Improvements
### Bug fixes
### `crossScalaVersions` default value
As of this fix `crossScalaVersions` returns to the behaviour present in `0.12.4` whereby it defaults to what
`scalaVersion` is set to, for example if `scalaVersion` is set to `"2.11.6"`, `crossScalaVersions` now defaults
to `Seq("2.11.6")`.
Therefore when upgrading from any version between `0.13.0` and `0.13.8` be aware of this new default if
your build setup depended on it.
[#1828][1828]/[#1992][1992] by [@dwijnand][@dwijnand]