There is a development iso image of Sparky 5-dev20171120 MinimalGUI ready for testing.

The Sparky 5 live system is based on Debian testing “Buster”.
All packages have been updated as of November 20, 2017.

The most important change is about disk encryption.
The Calamares installer has full disk encryption option enabled to be used during installation process.
Please test it and report on our forums whatever you find.

The development iso images can be downloaded from the download/development page.

Encryption option during installation    Sparky running on encrypted disk