@santiago no, it's because we don't know how safe "5.6.1b" is. One backdoor was found, but the person who did it was apparently in control of the project for the last two years. Who knows what else they did during that time.
So, the right approach is indeed to go back to the last version before things were compromised. That is 5.4.
However, you reported the problem to Haiku, which has nothing to do with this, instead of Haikuports. That's why it was closed. No version of Haiku ships with 5.6.
santiago