#1 - June 9, 2015, 5:13 p.m.
We've reached a point in 6.2 testing where going forward, builds deployed to PTR are going to be flagged as "release" versions. This won't affect much in terms of content for Public Testers, however it will disable certain test-realm only features in preparation for retail launch, namely in-game Character Copy. Existing characters will not be affected and the feature will return after 6.2 testing has completed.
As always, thank you all for helping us test 6.2 PTR!