Is Explanation of Statement required for all 1116 forms? I have $356.56 that I'm claiming as a credit. Did not fill out Explanation of Statement last year. Is this new?

(FYI details: Foreign Income of ~$5400, of which ~$4600 was qualified, with a total of 356.56 in Foreign Taxes.)  Did I click on something incorrectly to generate this "Explanation Statement" form or is it now required? Thank you.