### Improvements

- Notifies & enables users to stay in sbt's shell on the warm JVM by hitting \[ENTER\] while sbt is running. [#2987][]/[#2996][] by [@dwijnand][]

[#2987]: https://github.com/sbt/sbt/issues/2987
[#2996]: https://github.com/sbt/sbt/pull/2996
[@dwijnand]: https://github.com/dwijnand