A popular slang phrase among the ever growing north eastern youth in the United States, in the cut refers to a male that is interested in or engaged in homosexual intercourse.
You still could use the expression, but it might not be the most ideal thing to say.
So, I will keep you posted anytime there is a change to ensure that you are working from the latest specifications.
It can be used in both urban and rural areas.
Is this unnecessary in a business context? More formal We will notify you of any changes.