Passage: The goal of Nova was to achieve "sovereignty and technological independence" and to have it installed on all computers in Cuba where Microsoft Windows is still the most widely used operating system. The system was central to the Cuban government's desire to replace Windows. Hector Rodriguez, Director of UCI, said that "[t]he free software movement is closer to the ideology of the Cuban people, above all for the independence and sovereignty." Other cited reasons to develop the system include the United States embargo against Cuba which made it hard for Cubans to buy and update Windows, as well as potential security issues feared by the Cuban government because of the U.S. government's access to Microsoft's source code.Cuba was planning to convert to Nova as its main operating system; once the migration is complete it was intended to be installed in 90% of all work places. In early 2011 the UCI announced that they would migrate more than 8,000 computers to the new operating system. Beginning in 2011, new computers were intended to come installed with both Windows and Nova.

Question: When did the UCI announce their computer migration to new operating systems?
early 2011