A month ago I have announced the release date: February 15, 2015. As it always happens, things went slower than we expected, and the release is delayed. Sorry.
Though not announcing any specific date anymore, we will try to release the new version in February.
Meanwhile you can still use the pre-release version of the app, which is now integrated with GitHub: you can add files to conferences directly from your GItHub repositories (at this point this is only possible for the public repos).
Stay tuned, we are almost there.
Oleg Kalistratov, co-founder