I'm a little nervous about this statement and I'm not sure if I need to take action. Please clarify if I need to do something or not: "The existing code has a bug that will cause a divide by zero error on July 4th for anyone who does not upgrade to new code. This means that not upgrading by July 4th is not an option"
This message only applies to witnesses/miners who run the blockchain-level code. Normal users of the steemit web site don't have to worry about this.