As documented in [1], the Watch Later playlist ID will be just "WL" in one month. We already heard about this magic ID, but now at least we have some reference.
So it seems there is good and bad in this:
Bad:
We only have one month to update the app. Slower updating users will have a broken app.
Good:
We will save one (or even two?) requests from now on.
maxhille
commented
7 years ago
As documented in [1], the Watch Later playlist ID will be just "WL" in one month. We already heard about this magic ID, but now at least we have some reference.
So it seems there is good and bad in this:
Bad: We only have one month to update the app. Slower updating users will have a broken app.
Good: We will save one (or even two?) requests from now on.
[1] https://developers.google.com/youtube/v3/revision_history