[@dwijnand]: http://github.com/dwijnand
  [#1750]: https://github.com/sbt/sbt/issues/1750
  [sbt/ivy#17]: https://github.com/sbt/ivy/pull/17
  [#2163]: https://github.com/sbt/sbt/pull/2163
  [sbt/ivy#18]: https://github.com/sbt/ivy/pull/18
  [#2186]: https://github.com/sbt/sbt/pull/2186

### Fixes with compatibility implications

### Improvements

### Bug fixes

- Fixes `updateClassifiers` downloading updated snapshot sources and docs.
  [#1750][]/[sbt/ivy#17][]/[#2163][]/[sbt/ivy#18][]/[#2186][] by [@dwijnand][]