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Facebook has introduced Field Expansion feature in Graph API to help developers to construct complex nested queries.
https://developers.facebook.com/docs/reference/api/field_expansion/
There is no doubt about the benefits this feature would give us. But what about the existing apps? Will this affect them or backward compatibility has been taken care?
I’m an engineer on the Platform team and worked on this feature. Everything is 100% backwards compatible; existing apps do not need to update.