Google made news earlier this year when it announced that Android 5.0 Lollipop devices would ship encrypted by default. And indeed, the first few Lollipop devices (all Nexus) were encrypted out of the box. However, OEM Lollipop phones are not shipping with encryption enabled. It looks like Google is backing off on this requirement, pushing it to a future version.
So, something changed at some point between the original announcement and Google’s release of the updated Lollipop hardware requirements in January.
Google Will Not Require OEMs To Encrypt New Devices With Lollipop After All, But Does ‘Very Strongly’ Recommend It was written by the awesome team at Android Police.