i am on mac os 10.6.4 and can no longer use SL. i tried following the advice in these answers, & got to here: http://wiki.secondlife.com/wiki/Release_Notes/Second_Life_Release/3.2.8 where i downloaded & installed 3.2.8.
however, as soon as i launch it, it tells me i need to upgrade. there is no possibility to turn off the automatic upgrade. if i say ok, it upgrades to 3.7 and will not run on my computer. if i don't say ok, the only thing i can do is quit.
seems like SL doesn't want people with older systems ??