I've been tasked with upgrading a now non-functional web site using very old Magento 1.1.7 to a more recent version (latest currently being 1.9). I'm an experienced web developer but am brand spanking new to Magento.
While doing my homework and getting up to speed on Magento, I thought I'd ask the experts how to best go about doing this? Support from the company hosting the site suggested that it would probably be necessary to stand up a new site with an up-to-date version and then try to migrate the old data.
Do you agree that this is the best approach? If so, can someone please point me toward resources (if any) that might help me better understand how to map/migrate data between these two versions? Or provide any general advice that may help me accomplish this?