Lumber question for those in the building trades

S E Texas friggin Piney Woods we call it.
One of dozens of mills down the road. Pine logs are hauled in there, all go to 2 x 4s there. They are pilled out there till to go to the saw with water being sprinkled on the for days, weeks. Green logs getting wetter (greener).
All cut into 2 4 x 8s there and stacked and sit there till they reach the desired dryness. Then plained. The results are dimensional lumber that has lost some dimenstions!! Then shipped out.