After the beat builds ios will recive the update 0.12.0/0.12.1 on September 8th. Sadly for andriod users there will be a build 14 BUT only for android.
How do i know this there are 2 MCPE youtubers that both cover the update
ragelixer and jackfrostminer
they both cover 0.12.0/0.12.1 update.
there was a tweet that ragelixer showed that said it will be out for ios on the 8th of September.