Macworld editor Kirk McElhearn noticed the announcement on Apple GarageBand webpage. It appears that the new features will relate to Smart Controls and the Piano Roll Editor.
Polish Your Performance
"Capture your changes in real time by adjusting any of your software instruments’ Smart Controls while recording a performance. You can also fine‑tune your music later in the Piano Roll Editor."
A footnote lists the features as being available on June 30th; however, the exact changes are still unclear.
One possibility is that Apple may allow GarageBand users to upload music to Apple Music Connect, its new platform for artists to connect with fans.
Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.
You can purchase GarageBand from the Mac App Store for $4.99.
Read More [via MacRumors]