On the My Requests window, you will now find the "Accept All" button which allows to accept a total bulk of 25 requests - including gifts, boosts and ally requests.
Clicking the button will only accept the gifts, without sending them back.
If you accidentally click on a single request first, you can still use the "Accept All" button after you click the "Reload Requests" button next to it.
To make sure you see all your incoming requests, use the "Reload Requests" button until you have less than 25 pending.
This feature does not seem to have kicked in for me yet.