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+
+  [@DavidPerezIngeniero]: http://github.com/DavidPerezIngeniero
+  [2008]: https://github.com/sbt/sbt/issues/2008
+  [2009]: https://github.com/sbt/sbt/pull/2009
+
+### Fixes with compatibility implications
+
+### Improvements
+
+- Adds more diagnostic info for underfined settings.
+  [#2008][2008]/[#2009][2009] by [@DavidPerezIngeniero][@DavidPerezIngeniero]
+
+### Bug fixes