I'm currently working on Magento 2.2. And found that In Magento 2.2 core team made many changes in files and folder structure, deleted many files, replaced classes and many other things.
One other important change found, that in Magento 2.2 generation folder location changed
Change location from
magento2.1/var/generation
To
magento2.2/generated
Added new folder metadata in generated folder what is use of it?
Other things found that add new i18n folder at magento22/app
like Magento 1 app/locale
Does anyone has found more changes or differences in Magento 2.2?
Best Answer
You can compare both version from below link
https://github.com/magento/magento2/compare/2.1...2.2
Open File Changed tab
you can find here all changes related to file structure as well as code changes in files.