@pimskeks announced the release over Twitter:
Linux version (x86/x86_64) of #Absinthe #A5 #jailbreak is done!
Also version 0.3 of #Absinthe #A5 #jailbreak is available for OSX and Windows. Nothing really new, so no need to re-apply :-)
#Absinthe 0.3 only has some cosmetic changes, and a potential bug fix for win32 (only really few people seem affected)
You can download the latest version of Absinthe here. You can find instructions on how to jailbreak your device via the iClarified Jailbreak Wizard.