Delta Sync for OneNote sync in OneDrive?

Is a delta sync option possible/on the roadmap for the OneDrive sync?

I use OneNote, which syncs to OneDrive by default. My OneNote notebooks are pretty large (200M+ sections). In the “official OneDrive sync client”, OneNote changes result in a small network upload of the delta changes. In Insync, every time I change one bit in a notebook, it has to resync the full notebook section (200M+)! That is a problem since I use OneNote from multiple devices and am on the road regularly enough to make such large syncs very costly.

For now we won’t be able to support it as there doesn’t seem to be a public API for differential sync for OneDrive yet.

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