There are not so many breaking changes in Find, and you can go directly from 7 to 9.
Here are a list of breaking changes for EPiServer Find 9
If you are filtering on files you also need to follow my blog post here:
Thanks Henrik for the updates. I am very new to EPiServer technology, started working in and around 1 month back. Could you please clarify the below:
Thanks for your time in advance
We are planning to migrate EPiServer from 7 to 7.5 and hence EPiServer Find also from 7 to 7.5.
When we look at the breaking changes in - http://world.episerver.com/documentation/Items/Upgrading/EPiServer-Find/75/Breaking-Changes/, it looks like there is nothing. So what are the steps that are required to migrate EpiServer Find from 7 to 7.5?
Also once we migrate to 7.5, we are planning to migrate the application to 8. So is it possible to migrate EPiServer Find from 7.5 to 9, which is the latest version of EPiServer Find through nuget.