Hello, I have Lightroom 5 and i would like update to 6 but when i start the procedure about the purchase it's not the single update option. how can I do? thank you very much. Giuseppe
Go down to Lightroom then change the 'I want to buy" dropdown from Full to Upgrade.
When I did this the other day the options were grayed out. You can either empty cookies or try a different browser. You need the serial number from the original product to complete the upgrade.