Statuses/update API


I’ve been doing some tests wrt the new API v1.1 and ran into some issues; my test case is simple, a mobile app sharing content on behalf of a user.

Putting my requests through a proxy shows that the native iOS twitter sharing implementation (SL framework) makes 2 calls:

Just to be sure, then I manually created a request to the same endpoint (/1/statuses/update.json) and the call fails with the expected 410 error.
When I changed the endpoint to point to 1.1, the same manual call succeeded…

Why is the native library able to successfully call the old API?