The GNOME Disk Utility developers have announced last evening, July 8, the immediate availability for download and testing of the first development release towards the GNOME Disk Utility 3.10 storage device management tool for the GNOME 3 desktop environment.
GNOME Disk Utility 3.9.1 now uses the latest features from the GTK+ and Vala toolkits, ports chart widgets to Vala and squashes minor bugs found in the previous stable releases.
Last but not least, the following translations have been updated in this first maintenance release of the upcoming GNOME Disk Utility 3.10 application: Czech, Spanish, Norwegian Bokmal, Persian, Danish, English UK, Finnish, Italian, Polish, Brazilian Portuguese, Slovenian, Chinese Traditional and Chinese Simplified.
For more details, please check the official raw changelog
Download GNOME Disk Utility (Baobab/Disks) 3.9.1
right now from Softpedia. Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.