Sportsman 850 frame questions

Good morning everyone,
– Does the Sportsman 850SP and the 850 High lifter 2016 have the same frame as older version of 850XP?

– Does the Sportsman 850SP have the heavy duty Shock?

I believe if I’m not wrong the 850 base model doesn’t have the same frame has the XP ones.

I wonder for the SP 2016 model has the same strength as the XP.
thanks guys for sharing your expertise’s
JS