Do you have Maya, Lightwave, C4D, or 3DS Max? If not, then those updates aren't necessary. If you're planning to get those in the future, then hedge your bets and download them along with SR 1.1 for PP2010 but don't install them just the SR1.1. I just have the SR1.1 and the rest on my storage disk(back up media) for future. 

HTH?

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OS: Windows 11 64-bit
Poser: Poser 11.3 ...... Units: inches or meters depends on mood
Bryce: Bryce Pro 7.1.074
Image Editing: Corel Paintshop Pro
Renderer: Superfly, Firefly

9/11/2001: Never forget...

Smiles are contagious... Pass it on!

Today is the tomorrow you worried about yesterday