The last edition was in the summer of 2005, but now there is a new

SummerCup 4v4 Capture the Flag cup for Quake 3:Arena!

As usual, the SummerCup will differentiate from the regular seasons (Spring/Fall cups). SummerCups have always been "less-serious" and more fun-oriented cups, and this will not change with this one. To differentiate, the format of this cup will be 4vs4 and featuring non-standard maps. Of course we have to keep in mind that we cannot do very crazy things with the maplist, since we are still held back by the availability of maps on publicly available servers.

q3wcp1, q3ctf2 and q3wcp9 will for sure not be part of the maplist.

Check cup's page for more detailed information.