Please put a date or version number on your sales literature, especially technical information. It will make it easier for your customers to use the most current literature, simplify communication between us, and help avoid conflicts due to reliance on out-of-date information.

Case-in-point: Two months ago, I carefully reviewed the data sheet from which this image was taken and made engineering decisions based upon it. Today, I received another copy of the data sheet. Even though it looks the same, has the data changed?

Neither the first or second data sheets are dated, so I can't tell if the manufacturer has published revised information unless I do a line-by-line comparison. And if I am going to do that, I might as well look at the competitor's information.