So this is just a heads up to everyone. As can be seen in the video above the season of Dawn mods can not be used on any prexisting armor, and new armor can not use any season of undying mods, as the mods sockets for each of these are apparently not interchangeable. This means that any Nightmare mods, raid mods, undying mods can not be equipped on any new armor, and none of the new season mods tied to the obelisk can not be used on the armor you have currently. As a result of this you will have to choose to either continue to use that armor that you have spent time to grind for in order to get those stat rolls on and have masterworked, or you can use the new mods, and repeat that same grind again. This will also be posted in the help>Game Issue section of the forums as I am hoping this is in error and is not suppose to be the case. You can find it [u][b][url=https://www.bungie.net/en/Forums/Post/254629711]HERE[/url][/b][/u]