Bookshelf 6.9.1 contains the following:
- Added support for single sign-on (SSO) allowing easy access from 3rd party apps.
- Added the ability to set Bookshelf as your default EPUB reader.
- Bug fixes and performance improvements.
Windows System Requirements
- Windows 7 (32/64 bit)
- Windows 8 & 8.1 (32/64 bit)
- Microsoft .Net 4.5
- Direct X 10.0 Supported graphics card
- Internet connection for registration and downloading of eTextbook.