Lindy Chamberlain was exonerated.

She had always claimed that Azaria was wearing a matinee jacket which wasn't found along with the rest of Azaria's clothing. They couldn't find the matinee jacket and accused her of lying. The clothing they did find was tested and they found no dingo saliva on it which was largely the reason Lindy was convicted. There was a huge fuss about the jacket and whether or not Lindy was telling the truth about it because it would explain the lack of dingo saliva on Azaria's recovered clothing. Azaria's body was never recovered.

10-odd years later a Canadian(?) tourist fell to his death from Ayers Rock and when they recovered his body they finally found the matinee jacket that Lindy said all along Azaria had been wearing.

So yes, Lindy was eventually proven innocent - after spending years in a Darwin jail for a crime she did not commit. You will still find many people, even after this, who still believe that Lindy did kill her baby. She lives in the USA now and I can't say I blame her.