Could you please clarify your query ?
If it is about changes between the old TRTH SOAP and the new REST API then yes, the format of queries has changed between the SOAP and REST API. The changes are related to the new API technology, and are based on the type of data you request (tick, bar, EoD, etc.). The new request and response formats are detailed in the documentation and tutorials available in the portal.
If this does not answer your query, please explain in more detail what you are trying to achieve.