Earlier Johan from Mojang announced there would be an update to Minecraft Pocket Edition, named PE 0.7.6, to fix various problems with Pocket Realms. Unfortunately, the release has been held back from this week to an unknown date.The reason for the delay is unknown, as Johan has not tweeted it nor replied to anyone with an explanation. He simply tweeted, "There will unfortunately not be an new MCPE update this week." We will update you if more information becomes available.
Source: Twitter