?Kings & Queens,
We have released version 4.4.1 now.
This version contains 2 fixes:
fix collision (blocking) issues caused by allied/enemy units when passing through them with a Royal Guardian
fix for the game crashing, when trying to upgrade an alliance
Please note that, depending on the platform, you might have to wait a little bit before seeing the option to download the update manually.
Note that the iOS version is currently delayed due to it still being in revision at Apple. We will release it as soon as we are approved.