The SIESTA developers have decided to change the licensing conditions for the 
code. From now on, SIESTA will be released under the GPL open-source license 
(https://en.wikipedia.org/wiki/GNU_General_Public_License). 

In the past SIESTA had always been free for academic use, but re-distribution 
was not permitted. It is expected that the move to an open-source license will 
be beneficial for the SIESTA project and its large user community. On the one 
hand, the program will be able to incorporate functionality already existing in 
other GPL codes. On the other, the barrier for contributors will be lowered, as 
new developments will be more easily re-distributed. 

Development and distribution of the program is now centralized at the Launchpad 
platform:

     http://launchpad.net/siesta

Users can download tarballs of released versions, as well as clone the source 
branches of the appropriate series directly. Prospective contributors are 
encouraged to become familiar with the Launchpad workflow and to read the 
specific documentation that is being prepared for Siesta development.

The current stable series is '4.0', which is in advanced beta stage. Users are 
encouraged to download it and use it for production runs. 


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