Changes in V4.4.0.RC31:
- Minor fixes implemented
- Space reserved for OS increased to 1GB from 600MB
- Updated user's manual

Full changelogs:
Automatic NTFS formating
Automatic assignment of Drive letter
Several minor fixes implemented
Added support for 12GB and 24GB licenses
Updated user's manual
Features removed:
1. User will not be able to use FAT16 or FAT32 or unformatted drive as a format option for RAMDISK, through the GUI. NTFS will be default format option through the GUI.
2. User will not have the ability to create a RAMDisk without specifying an image path on harddisk.
3. Save of image file on non-system drives has been made optional.
4. Space reserved for OS increased to 1GB from 600MB.

AMD Radeon™ RAMDisk 4.4 Release Notes
AMD Radeon™ RAMDisk current release 4.4 includes the latest performance enhancements and bug fixes and is compatible with AMD and Intel platforms.
Feature Highlights of AMD Radeon™ RAMDisk release 4.4
 Automatic NTFS formating
 Automatic assignment of Drive letter
 Several minor fixes implemented
 Updated user's manual
 Features removed:
1. Also user will not be able to use FAT16 or FAT32 or unformatted drive as a format option for RAMDISK, through the GUI. NTFS will be default format option through the GUI.
2. In addition, user will not have the ability to create a RAMDisk without specifying an image path on harddisk
3. Save of image file on non-system drives has been made optional.
4. Space reserved for OS increased to 1GB from 600MB.
http://www.radeonmemory.com/software_updates.php