Yeah, your results are unsurprising. An update from me is certainly required, at the very least because of the way Atmosphere checks the current major firmware revision against the version libstratosphere embeds into the module at compile time.@ndeadly, my friend. How long do you think will it take for you to update MC to support the new firmware? I will test it out with the current version, but I am afraid too much was changed with the new firmware, since it came with support for bluetooth headsets, so it will most likely not work.
EDIT: Sadly, it does indeed not work, I simply get a blackscreen after the initial atmosphere boot splash screen. Waited for 10 minutes, nothing happened. I removed MC from the sd card and atmosphere booted properly again.
I was out last night when the update released and haven't had much of a chance to look into things yet. I was able to update libstratosphere and recompile mission control to confirm that there is more required than just satisfying Atmosphere's version checks though so more work is definitely required. As for how long an update will take, it's hard to say right now. It might be ready later this evening, or it may take a few days or longer depending on how much has changed in this firmware update.