- Patch #896364 by frega, effulgentsia, Jacine, sun, David_Rothstein, Jeff Burnz, james.elliott, casey, mgifford: screen reader users and some keyboard only users need a clear, quick way to disable the overlay.

- Patch #655722 by ksenzee, casey, Gábor Hojtsy, bleen18, David_Rothstein: changes made in an overlay session are not reflected when the user closes the overlay.

#668640 by casey, aspilicious, et al: Re-implement Overlay without jQuery UI Dialog; massive performance improvement, helps address several critical issues.

- Patch #655740 by ksenzee, casey, aspilicious: fixed small JavaScript issues in the overlay module.

#615130 by casey, Kiphaas7, David_Rothstein, ksenzee, seutje, and meatsack: Dramatically improve performance of the Overlay module.

#655614 by David_Rothstein and ksenzee: Remove code that causes changes made by submitting a form in the overlay to not be reflected when the window automatically closes.

#610234 by Gábor Hojtsy, ksenzee, cwgordon7, David_Rothstein, seutje, marcvangend, sun, JoshuaRogers, markus_petrux, Bojhan, Rob Loach, Everett Zufelt, drifter, markboulton, leisareichelt, et al: Added Overlay module to core, which shows administrative pages in a JS overlay, retaining context on the front-end site.