Earlier this month new JSON spec rfc7159.txt was published.
Spec editor Tim Bray blogged on the new spec, and he provided a HTML version of the new spec as well. Appendix A lists the changes from RFC 4627 (old spec rfc4627.txt).
This seems to be the real big change between both specs:
Changed the definition of "JSON text" so that it can be any JSON value, removing the constraint that it be an object or array.
I wanted to "see" the "real" differences between the two normative text versions of rfc4627 and rfc7159. Unfortunately diff --side-by-side -W 160 rfc4627.txt rfc7159.txt did not nicely align the diffs.
So I did split both specs into "sections" and did side-by-side diff on each section. Bash script doit concatenates all diffs resulting in diff.rfc4627-rfc7159.txt by:
./doit > diff.rfc4627-rfc7159.txt
All existing JSON features in DataPower are implemented according rfc4627.txt, you can easily verify by the hits for search string "4627" in DataPower InfoCenter.
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