Patch 5.1 is now available on Steam.
To get the patch, simply launch Spore. PC players will need to have EADM installed.
If you didn't install the EADM when you installed Spore, you can download it here. This patch is available for both PC and Mac.
Many tuning improvements to Space Game, including reduced disaster rates at all levels of difficulty, adjustments to Hard Mode, increased limits on concurrent trade routes, as well as changes to tool unlocks for the Knights.