- Delete information about hash->signature constraint migration. That
won't work for C4.0
- Rewrite parts of the api-contract-constraints.rst file to fix grammar
problems and reduce the weight of the page. Some detail isn't really
necessary at this point in the docs.
- Mention more things in the upgrade notes.
* Update changelog with changes to vault queries
* Move choice of relevancy state to QueryCriteria
* Ensure relevancy default is correct for all query types
* Remove superfluous imports
* Update documentation for queries using state relevancy
* Fix merge damage
* Revert change to use RELEVANT as the default and update docs
* Revert missed instance of relevancy change
* Rewrite of upgrade notes for vault state query updates
* Address review comments