Opera 6.0 released mactech 21 years ago Opera 6.0 is the latest version of the popular alternative Web browser for Mac OS 9 and Mac OS X. The update includes a host of enhancements and bug fixes, all of which can be found over at MacUpdate. Share this: Opera Web browser updatedDecember 4, 2002operaChimera Web browser updatedJuly 25, 200220020724174000Opera Web browser updated for PantherAugust 20, 2003opera