We have just released a 64bit version of DigitLab. Thanks to support for 64bit CPU architecture DigitLab is now able to work with more than 4GB of RAM, which is crucial in professional usage of the system. Apart from this major change we have added Sigil well-known, opensource ePub editor.
ISO image of DigitLab can be downloaded from project website http://digitlab.psnc.pl.