Implications of moving from COQL v2 to v3

Implications of moving from COQL v2 to v3

I am new to COQL and because my initial searches in the Zoho support docs brought me to info on using v2, I did not realize I had an option. Are there any REAL benefits to changing from v2 to v3 and, if so, what are the implications to all the code I've currently written? For example:
1. Will new Scopes need to be set up?
2. Will I need to publish new Access and Refresh tokens?
3. What will change in my COQL query statements?

Anything else I should consider?
      Zoho Marketing Automation

            Zoho Pagesense Resources

              Zoho SalesIQ Resources



                    Zoho TeamInbox Resources

                      Zoho DataPrep Resources



                        Zoho CRM Plus Resources

                          Zoho Books Resources


                            Zoho Subscriptions Resources

                              Zoho Desk Resources

                                Zoho Projects Resources


                                  Zoho Sprints Resources


                                    Qntrl Resources


                                      Zoho Creator Resources


                                        Zoho WorkDrive Resources





                                            Zoho Campaigns Resources

                                              Zoho CRM Resources

                                                    Design. Discuss. Deliver.

                                                    Create visually engaging stories with Zoho Show.

                                                    Get Started Now