A quick braindump of the bits that will need to be tidied up before V5 can be released:
[x] Add documentation for the concept of DynamicFields
[x] Add documentation for new ObjectTokenizationBuilder methods for registering dynamic field readers
[x] Update documentation for binary serializer to mention how fields can be re-mapped and constraints of changing the index definition when deserializing an existing index
[x] Update documentation for LIFTI binary serialized format
A quick braindump of the bits that will need to be tidied up before V5 can be released: