Hi,

I wonder, has anyone successfully upgraded an Umbraco v7 site with extensive custom code to Umbraco v10 or 11? If so, how did it go? Additionally, what are some key issues that I should keep in mind during the upgrade process?

There is a website written on Umbraco v7.16.13 which needs to be upgraded to the latest v11..

It includes at least the following:

1. Umbraco Forms
2. Seo checker
3. LeBlender - (specifically many of the LeBlender Grid Editors which are used in lots of contents)
4. Custom backoffice sections
5. Custom Data types
6. Custom Macros
7. Custom nested contents
8. Scheduled tasks (configurable from the umbracoSettings.config file)
9. SSO for members (using Identity Service)
10. Up to 150 templates in accordance with partial views
11. A lot of custom back-end code for templates, partials, macros, custom data types... which uses umbraco content/member/media services
12. Multiple custom content/member search methods which uses umbraco examine

I looked at the following article : https://www.dot-see.com/blog/so-you-want-to-upgrade-from-umbraco-v7-to-v10-v11-wrong-verb/ and believe that this is a very painstaking task. What are your thoughts? Are there any alternatives that could make life easier?