I didn't find it. Popsicle did. But I verified that it was in the Legislature and appears to have been passed. It's not "on the books yet," though. Or at least I couldn't find it on public lexis. Haven't tried Westlaw.
Georgia law on retroactivity appears to be somewhat complicated. I linked the most recent case in a post before the hearing. It was a sex with minors case involving an 18 year old named Genarlow Wilson. The law changed after he was convicted to make his crime a misdemeanor, iirc. In that case, though, the legislature specified that the change in law was NOT to be applied retroactively. Nonetheless, his punishment was ultimately found to be cruel and unusual.
Afaik, Georgia does not have a saving statute -- all laws apply retroactively unless there's some really good reason why they don't. So, imo, the new law will not apply retroactively unless the legislature said it should, BUT a sentence of more than 30 years (and defo the DP) will be deemed unconstitutional. I have NOT been able to find the Leg. history of GA's new second degree murder statute.
Sorry if that doesn't make much common sense. I've had a week from hell and am SOOOOOO tired!