- January 20, 2012 - Mavuno version 0.2 released. - October 8, 2011 - Mavuno web site launched and version 0.1 released. Mavuno is an open source, modular, scalable text mining toolkit built upon Hadoop. It supports basic natural language processing tasks (e.g., part of speech tagging, chunking, parsing, named entity recognition), is capable of large-scale distributional similarity computations (