Since 2013, Ubuntu Kylin has successfully released 11 versions, including 13.04, 13.10, 14.04, 14.10, 15.04, 15.10, 16.04, 16.10, 17.04, 17.10 and 18.04. Ubuntu Kylin 14.04 and 18.04 are LTS and the rest are STS. 

According to Ubuntu Kylin official website statistics, Ubuntu Kylin ISO has been downloaded more than 20 million times from the official website by May 17, 2018(SGT) from June 12, 2013. This data only obtained from downloads by Ubuntu Kylin official website, rather than downloads from Ubuntu official website or other mirror sites.