The language of menu may go to Russian after the upgrade to 15.3b, but this is not a big deal, isn't it - you can easily revert it to English or the language of your choice by clicking on 'Setting's>Language.
This word "Language" stays in English all the time, whatever language you'd change the device to. So, it's easy to find even if you don't know a single hieroglyph in Russian or Hebrew

))))