Change record status: 
Introduced in branch: 
7.x-1.x
Introduced in version: 
7.x-1.2-beta1
Description: 

Prior to 7.x-1.2, the default format used when content types were created was m/d/Y - H:i Now, Date Popup Authored will use whatever "short" date format you have already configured for your site.

Impacts: 
Site builders, administrators, editors