 In June 2016 an analysis of the Fedora Project's software packages placed CC0 as the 17th most popular license.The Unlicense software license, published around 2010, offers a public-domain waiver text with a fall-back public-domain-like license, inspired by permissive licenses but without an attribution clause.In 2015 Github reported that approximately 102,000 of their 5.1 million licensed projects, or 2%, use the Unlicense.