Hi Kamal Saluja,
Thank you for posting query in Microsoft Q&A Platform.
If it's some new functionality or new feature or enhancement to feature, then we will be notified with in the ADF studio under notifications. Initially any feature will be released on public preview only. Slowly over the time it will be labeled as GA (general availability) if all goes well. And these features will not break existing functionalities.
If your ask is about background tech stack version upgrades of ADF itself? Then they are not controlled by customers. It's completely handled by Azure itself as ADF is PaaS service.
For any reason, if you see new feature release breaks your existing functionality (which should not be the case) then I would encourage you to post question in Microsoft Q&A Platform. Also consider having Support case to detailed investigation and resolution.
Hope this helps. Please let me know if any further queries.
Please consider hitting Accept Answer
button. Accepted answers help community as well.