One of the surprises of MySQL 5.6 was that the
mysql.host table was missing. How did I realize it? Because
make_sandbox, the basic installation brick of MySQL Sandbox failed to complete. What happened is that MySQL Sandbox, before claiming success, checks if some key elements are available. One of such elements is the 'host' table, which, unbeknown to me, had been deprecated, and was eventually removed in yesterday's release. As a result, installation of MySQL 5.6.7 fails.
This fix is minimal because it barely allows you to install MySQL 5.6. However, there are additional issues that need to be addressed, most notably the excessive chattiness. While this release was necessary to make operations possible, I will need to iron out the unfriendliness introduced by MySQL 5.6 to allow sandboxing to continue. Stay tuned: more will come.