I think you will find that most agree to acclimate your stock to the working conditions and the conditions that the shop will endure whilst you fiddle with normal tasks like going to work and family matters and an occasional sleep, between shop work exercises. This especially true to those who have garage shops and are only heated whilst working in the shop.
I am not a believer in the term internal stress. Wood is the most layed back thing in your shop, it will lay there and allow you to do anything you wish, no complaints. Where is the stress? It is not stress but a reaction to environmental changes, when you mill wood that has been resting in a damp area and slice off a layer of wood, you expose a different moisture content than the surrounding area, this causes a reaction to correct the fiber sizes in accordance to moisture, thus a bending effect or as we call it "Warpage" No offence Jim but I have always been irked by the term "Internal Stress" I know a lot of fellows use that term but it is simply changing the surface moisture content and the natural reaction that occurs.
So If you allow the timbers to rest in your shop at the condition you plan to use the shop for a good period of time and supply ample air circulation and provide a safe environment and a happy place there will be no stressful wood... Except for the stress you express knowing that you can't work on it until it has recooped from the stress of being moved from one happy place to another. You can try talking to it and assure it that you will only use sharp tools and be gentle, straight, & true. How you will caress it ever so lightlyy with only the finest sandpaper and complete the ensamble with the finest of finish followed by a gentle wax rubdown. I think that will relieve any stress internal or knot. It also is a good idea to leave those freshly reshapened pieces in a happy place, most prefer a good air movement and a flat level field to bask in the new surrounding. Some prefer to put on weight to make sure any nervous pieces don't raise or become stressed while you abandon them to earn income and tend to your "other" family. (Freshly milled lumber often is jealous of those who fondle them and have taken advantage of thier qualities and try to rise to the occasion, while others are just board and lay there.