So I decided to fire up Destiny finally this evening to see what is up. I am not following at all what you people are talking about with respect to shaders. Do they still even exist as items, or are they just unlocked now? Do all characters see them or only the ones that "earned" them? The lack of detail about all this on other web sites (the ones that are supposed to cover this sort of thing) is interesting.
However, I was greeted with a big exclamation point on my Destiny tile. Apparently it tried to update my game automatically at some point but of course there was not enough space on my system. So I had to move things to the external drive (apparently the X1 was not smart enough just to use that in the first place) and now I am very, very slowly downloading the update. I may or may not find the motivation to fire it up later tonight. We'll see...
Edit: Got the update installed and ran it to the character selection screen (to make sure there wasn't another big patch or something). I see a little, I guess, of what Simo and others are talking about. Now in addition to light level, which still seems to be there and the same, I also have some other number on each character that is new - and it is different for each one. WTF that is I have no idea - will have to get on later to see if I can figure it out. Strike one for making things simpler though

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