2003 August 28 ss ver0.1 start!
2003 Dec 25 ss ver1.0 opened
2004 May 5 ver 1.4
2004.9 ver1.9
2006.12.11 ver1.99beta2
2007 Oct 25 ver 1.99beta5
2009.10.11 ver 1.99beta6
2011.10.7 ver2.00
2016.10.3 ver2.12
2018.3.14 ver2.14