The new OpenNebula 6.6 “Electra” is now available for download!! 
Many thanks to all those involved in the development, translation, and beta-testing of this new stable release of OpenNebula! 
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PS - This latest version of our Series 6 is named after the Electra Nebula, the reflection dust cloud associated with the Electra star, a blue-white giant star in the constellation of Taurus and the third-brightest star in the Pleiades cluster 