draft-leiba-rfc2119-update-00 says: > To reduce the number of reserved key words, the following key words > are deprecated, and no longer have special meanings defined by BCP > 14: > > REQUIRED, SHALL, SHALL NOT, RECOMMENDED, NOT RECOMMENDED, OPTIONAL I don't get why reducing the number of reserved key words is a goal. It doesn't seem to have anything to do with the main goal of clearing up the confusion over capitalized versus non-capitalized, and it creates an additional difference between documents that follow 2119 and those that follow 2119-plus-update. -- Doug Ewell | Thornton, CO, US | ewellic.org