"In response to overwhelming feedback from our members, core LEED users and engaged stakeholders, USGBC announced today that it will delay ballot on LEED 2012 until June 1, 2013. Because of this date change LEED 2012 is being renamed LEED v4.
Why the change?
This change is 100% in response to helping our stakeholders fully understand and embrace this next big step. We intend to do everything we can to ensure that the market is ready for LEED v4 because it represents progress on both carbon reduction and human health improvements.
We feel it is our obligation to our loyal users to fully build out the credit documentation, forms, and education prior to rating system ballot. Therefore we've decided to delay ballot on LEED v4 until June 1, 2013 (or potentially sooner)."