For obvious reasons, details of the increased security measures have not been made public. It can be assumed that anything which could conceivably be used as a weapon will be removed from carryons. (I heard reports that at least one unnamed airport was confiscating ballpoint pens, although it's hard to see how these could be detected on one's person.)
Diabetics and others with a legitimate need to carry syringes must have some medical proof of their condition.
I don't know that there have been any changes to allowable items in checked bags.
So put razors, scissors, nail files etc. into the checked bags, or better yet buy them when you get where you're going.