Do you have a spacer on the back side of your 10s cassette? If you do, then your old wheels are fine.

If you don't have the spacer on the back side of the 10s cassette, then I think you technically need to use the 11/34 cassette to jump to 11s. Or.. replace the wheels, or possibly the freehub if you're lucky.

Your 10s rear derailleur won't be compatible with 11s shifers... so you're in for quite a few upgrades.