[xim]

Hello,

We found the issue with updating foreign key in upgrade process on some versions on MySQL.

Our team is working on the fix and we will release the patch to recover stores. Also to fix the upgrade process we will have to release 5.2.3 version. There will be no any changes in the software, only the fixes in upgrade procedure.

To prevent such situation in the future we will implement waves for upgrades. It is impossible to emulate all the cases on QA-phase, what’s why we want to double check the upgrade procedure on private test group until make it public. The first wave will be available only for certain stores. After checking and corrections (if necessary) we will make upgrade available for all the other stores.