Issue #1236216, Start the process of moving the repeating date integration out of the Date module and into a separate, Date Repeat Field module.

Issue #1267046, The UNTIL date was not getting included in repeating results. This should now be fixed, but is an API change of sorts for anyone who worked around it by setting it ahead.

Issue #1354606, Make sure COUNT option without UNTIL date can be handled correctly by repeating date computations.

Issue #1179715, Switch drupal_array_get_nested_value() to use 'values' instead of 'input', where it makes sense, and simplify some of this code.

Issue #1179715, Create a helper function for testing hidden/disabled dates and test each date element and validator to skip processing in that case.

Issue #1179715, When hidden by #access=FALSE, repeating date fields were getting removed and not replaced.

Issue #1178716 by das-peter and KarenS, Tweak the date repeat widget to identify empty input when used on nodes with translation.

Issue #1216878, Re-introduce 'repeat' as a field setting rather than a widget type so people can't try to switch back and forth between repeating and non-repeating dates. Eliminate repeat widgets.

Issue #1234140 by arlinsundbulte, Change terminology in user-facing text from 'From/To Date' to 'Start/End Date'.

Issue #1209408 Make sure date_repeat_calc() returns empty array for FREQ=NONE and INTERVAL=0, also add a test for that.

Rework date repeat to use custom multiple values handling, we can't have multiple repeating date elements or everything breaks.