Bukkit

1.1.1: users can clean up water with the command /nsw <x-coordinate of 1st point><z-coordinate of 1st point><x-coordinate of 2nd point <z-coordinate of 2nd point>or /noswimming with the same atributes
ability to delay cleaning up regions (per block in config)
you can be teleported out of water
(date: 7/29/12)

1.1.0: spam-bug fixed;
ever killed-bug fixed;
creates new regions the water is clean (you wont be hurt in this regions);
(date: 7/29/12)

1.0: plugin released
(date: 7/7/12)

none.