Thanks for reaching out. Unfortunately, we have no plans to add `client_modified` to your folder metadata result, as it would require a rather substantial change to our filesystem infrastructure.
For API v1, the modified time of a folder is actually quite misleading. It reflects only when the folder was created and/or if the folder was moved/renamed. It does not change if the file content within the folder changes.
For that reason, we simply decided to stop returning modified time in API v2.
We love to learn from the educators who use Dropbox. Whether you teach kids, teens, adults or a combination of all three, we want to know what apps and integrations you use with Dropbox to help with teaching. Which of the ones below is your favorite, or most used tool?