OCSP reponses without nexUpdate

Dear all,

OCSP real time responders typically produce responses without a nextUpdate. RFC 6960 stipulates in section 4.2.2.1 that ...

If nextUpdate is not set, the responder is indicating that newer revocation information is available all the time.

It seems that the former wording is ambiguous with regard to the semantics of the word "newer".
Does it mean for subsequent requests that one of the fields  thisUpdate or producedAt must change even if certificate status has not changed?

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Thomas KOPP
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