I tried to upgrade my Magento into 2.2.0. And I see that is missing
Developer items. Is it me? Why it's happening this?
Check your Deployment Mode it is in Production.
To enable the developer tab menu under the Advanced You need to change it to Developer Mode
So run this command : php bin/magento deploy:mode:set developer
Clear the cache by running this command : php bin/magento cache:clean
Now check Go to admin ->logged in ->click on stores ->configuration->advanced -> you will see developer option now.
Magento 2.2 advance section has been removed,
The ability to disable module output has been removed from Admin. If you disabled module output from Admin in a previous release, you must manually configure these settings. See Disable module output for details.
You can read release note from this link
Developer section is there
Magentoteam doesn't remove this feature. I checked in my fresh setup. Still you can debug this from below location
vendor\magento\module-backend\etc\adminhtml\system.xml and check If
section is there or not. If its there then may be something wrong with Instillation process.
Keyur's answer solved my issue, but i wanted to add that for a site that has been migrated to Magento 2.2, the settings for this are migrated into the
core_config_data database table. So if you are facing an issue where a module is disabled and there isn't a reference in the
/vendor/magento/module-backend/etc/config.xml file, you might find it in your DB.