Board Thread:Questions and Answers/@comment-24775820-20140404223730/@comment-6329488-20140408012149

The Redstone update will be 1.0.0, which will feature Redstone related stuff as well as buttons and levers. Many speculate that 1.0.0 will come out September of this year, but I'd say it will come out a little while later due to Redstone being a BIG addition for PE.