The third-largest cryptocurrency by market cap, Cardano (ADA) has recorded a new all-time high of $3.10 crossing the $3 barrier for the first time. In the past 24 hours, ADA surged over 12% and 18% in a week. The ADA's new ATH just came a day after Cardano launched the final testnet before the scheduled Alonzo hard fork on 12th September.