Hey Harry! There are a lot of reasons to upgrade from v7 Here are a couple resources to help give you some info on it. One of them is a couple years old and refers to older versions than 15, but the points Nurhak makes still stands: * https://skrift.io/issues/why-you-should-upgrade-your-umbraco-v7-and-v8-projects-to-the-latest-version-of-umbraco-v11/ * https://growcreate.co.uk/blog/a-guide-to-umbracos-end-of-life/