On December 1, 2021, the IRS published Instructions for Forms 1099-INT and 1099-OID and updated Form 1099-INT, which has been converted from the annual revision to a continuous use form.
Check them out here:
Form 1099-INT:
https://www.irs.gov/pub/irs-pdf/f1099int.pdf
Instructions for Forms 1099-INT and 1099-OID: