Snowman ++ Technology update and cheaper fees

Avalanche Autumn began with the technology upgrade of Snowman ++ which reduced the amount of contention seen in highly adversarial environments by up to ~99.7%. This results in a direct reduction in validator bandwidth/CPU/disk IO usage in these scenarios. In addition, Gas fees were lowered to a minimum 25 nAVAX and will fluctuate less rapidly compared to previously. As you can see from the charts below the activation date of Snowman ++ reduced gas prices significantly.