Re: Its a small change!
No, the ONLY time you make a small change on a Friday afternoon is when that Friday is the last day you will ever work for that company. Any other Friday, the mess you make on a Friday is the mess you'll get to clean up the following Monday, only it'll have had two whole days to fester and ferment and get nicely vile and ever so much more difficult to clean up.
No System Changes On A Friday.
Ever.
Without exceptions.