Or when the version is EOL, not getting security patches, and/or only compatible with an OS that isn't getting security updates. …or you're on AWS RDS, which w

Or when the version is EOL, not getting security patches, and/or only compatible with an OS that isn't getting security updates. …or you're on AWS RDS, which will automatically bump your db cluster if it goes EOL and you ignore the notices for more than a year.