Microsoft is pushing DENIM update for all Lumia phones across globally in different time but when should we expect the very same for preview for developers enrolled Lumia users ? And when ll windows 8.1.2 update arrive ?
To receive denim on pfd enrolled Lumias, you may have to just untick the 'enable preview for developers' in the app.
There is no date yet for windows 8.1.2 update, only Microsoft would know this.