2003-09 ... v1.6.1 was distributed
2002-06 ... v1.6.0
2001-12 ... v1.5
2001-07 ... v1.4
2001-04 ... v1.3.1
2001-02 ... v1.2.5
2000-12 ... v1.2.0
2000-10 ... v1.1.1
2000-04 ... v1.0.4
1999-09 ... v1.0.0