I'm still a noob to cycling and need feedback from the group.

My set up is 170mm 50/34 front and sram pg-1070, 11-25 10 speed. I would like to maybe go up to 11-28 or 11-32 so I can have a higher cadence during a climb. Other than the new cassette, what else do I need to replace/buy?

Not sure if it matters but I have SRAM Red components