Forum Discussion
Classic mode support timeline
- Jul 28, 2016
There are no plans to remove classic mode anytime soon. For more details, see our post on modern extensibility at http://dev.office.com/blogs/update-on-modern-document-libraries-and-extensiblity Until we roll out the framework and related patterns and practices, we havent earned the right to even talk about it. But since you asked, any change to support would be communicated long in advance.
Classic mode will be supported as long as there are customers using it. A recent post at Office Dev Center says that it's not going away for the "forseeable future", http://dev.office.com/blogs/update-on-modern-document-libraries-and-extensiblity. This statement should ease your mind:
"We will continue to support both of these mitigations until the modern library experience supports the same level of customization as the classic one and partners have had ample time to adapt their solutions to the new experience."
Thanks Wictor on the assurance of classic mode will supported indefinitely! Since we are now End of 2018, I hope the statement still stands!