Can't upgrade to 5.5.2

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Trying to upgrade to 5.5.2 from 5.5.1 but when I run the script in localhost/index.php/tools/required/upgrade it tells me I have the latest version 5.5.1.

I have tried everything. I have downloaded the 5.5.2 file and put it in my updates folder. Also I cannot see the upgrade feature in the system and settings / backup and restore in the dashboard

Thanks