Several older Galaxy smartphones that are no longer officially supported were updated earlier this year
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Samsung hasn't explained the exact reason behind this new wave of firmware updates for older phones. The company may have discovered a security vulnerability that needs to be fixed.
Update for Galaxy S5 Neo released under the nameG903FXXU2BFG3. The update to the Galaxy S6 series is identified by the number G92xFXXU6EVG1. Galaxy Alpha users can look forward to the G850FXXU2CVH9 update. And for the Galaxy A7 (2018), firmware version A750FXXU5CVG1 has been released.