Best Practices for migrating new developments between POD's

Summary:

Hi

We are trying to setup a migration release path for our developments and we want to do it as more automated as possible.

We are currently working with 3 environments.

1- In DEV1, we do our developments and tests - this environments never gets refreshed.

2- In UAT(test) we just move our final approved developments - every 3 months a P2T refresh takes place.

3-After testing in UAT, we then move succcesfull developments to PROD.

However, we are doing all of this manually each time we implement a new development (e.g. change of setup/ adding flexfields/ others) except of course for VBS changes which we can deploy from one place to different environments.