Changes between directx 9 and 11

Are there a lot of major changes between DirectX 9 and 11? Are can I use directx 9 tutorials but program everything with directx 11?

I like But I want to use the finished directx 9 tutorials.

So is there a lot of changes between the two versions?
closed account (jwkNwA7f)
I asked this a while back:
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