Tried to upgrade to the latest version of Newtonsoft.Json today and did not succed since there is not support for it in Find.
The strange thing is that there are different dependency in the different Find-packages:
EPiServer Find Client API.13.0.1
Newtonsoft.Json (≥ 10.0.3 && < 11.0.0)
EPiServer Find CMS Integration.13.0.1
Newtonsoft.Json (≥ 10.0.3)
EPiServer Find Framework Integration.13.0.1
Newtonsoft.Json (≥ 10.0.3)
When will all three packages be updated?