Hi, I observed that our old long-lived Dropbox tokens are still working even after the September 30 deadline. Can you confirm if the deadline for migration is extended? Is there a date after which old long-lived tokens will stop working?
While the creation of new long-lived access tokens is now deprecated, we don't currently have a plan to disable existing long-lived access tokens. (If that changes, we will of course announce that ahead of time.) That being the case, you can continue using existing long-lived access token(s) without interruption. Note though that after the change you won't be able to create new long-lived access tokens.
We're beginning to roll out the change, but we're releasing it gradually, so you may not see your app(s) affected yet.