Additional RFC 2119 terms SHOULD+ Same as SHOULD. However, it is likely that an algorithm marked as SHOULD+ will be promoted at some future time to be a MUST. MUST- Same as MUST for now. However, its expected that at some point in future this algorithm will no longer be a MUST MAY+ - Same as MAY for now. However, its expected that this algorithm may get promoted at some future time to be a SHOULD. |