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PHP 7.3 reaches end of support in December 2021 and Adobe Commerce 2.3.x reaches end of support in April 2022. You may want to consider planning your upgrade now to Adobe Commerce 2.4.x and PHP 7.4.x to help maintain PCI compliance.


Magento\Persistent module enables set customer a long-term cookie containing internal id (random hash - to exclude brute force) of persistent session. Persistent session data is kept in DB - so it’s not deleted in some days and is kept for as much time as we need. DB session keeps customerId + some data from real customer session that we want to sync (e.g. num items in shopping cart). For registered customer this info is synced to persistent session if choose “Remember me” checkbox during first login.