VERSION CODE NAME RELEASE DATE
JDK 1.1.4SparklerSept 12, 1997
JDK 1.1.5PumpkinDec 3, 1997
JDK 1.1.6AbigailApril 24, 1998
JDK 1.1.7BrutusSept 28, 1998
JDK 1.1.8ChelseaApril 8, 1999
J2SE 1.2PlaygroundDec 4, 1998
J2SE 1.2.1(none)March 30, 1999
J2SE 1.2.2CricketJuly 8, 1999
J2SE 1.3KestrelMay 8, 2000
J2SE 1.3.1LadybirdMay 17, 2001
J2SE 1.4.0MerlinFeb 13, 2002
J2SE 1.4.1HopperSept 16, 2002
J2SE 1.4.2MantisJune 26, 2003

Future Releases
J2SE 1.5.0TigerNot yet released
J2SE 1.5.1Dragonfly (dragon)Not yet released
J2SE 1.6.0MustangNot yet released