You can now go from Poser 11 to Poser 13 for $95.70…
Upgrades to Poser 13 are available for $95.70 until 11:59pm Monday, 31st July with coupon code POSERUPG13 at the checkout.” Valid Poser 11 serial numbers are now also being accepted for the upgrade… “… will accept Poser 11 or Poser 12 serial numbers for upgrade validation”. This wasn’t the case before.
Apparently the Poser 13 serial will be valid for the Mac Poser 13 Early Access, due for release very soon.