When trying to log in to the game after server maintenance just been done i`m getting a message to update app via the play store but there is no update option in the play store.
It may take a few minutes for the new version to roll out onto you local Play Store - if it's still not available, restart your device and make sure that all apps are closed,etc. If it's not available after that, email support@rovio.com with all of your account and device details.
Thanks Lynsey. Same thing happened to me on an Android, but not the iPads. [Always a pain getting wifi going after a restart on Android.]
Sometimes it can take a while for the Android update to appear on Android, I'm not quite sure why - I've had it happen before, I ended up uninstalling and reinstalling the app (please be aware though, if you do this, you have to go through the tutorial again before you can sign in with Google Play and get your proper island back!).