Issue #1379172 by deviantpixel, Note that the Date Repeat form uses a function that was re-named in 7.8.

Store the locale format in a static cache to avoid re-computing it dozens of times on calendar views.

Fix to new default date handling, the default date has to set a date in the database timezone, not the display timezone.

Issue #1245106 by Gábor Hojtsy, Hide the option to add the delta into the view for single value fields.

Issue #1370876, Make sure new Date All Day code does not try to set the popup values if Date Popup is disabled.

Issue #874322, Add back the date_field_all_day() function to avoid breaking other modules that are using it.

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

Fix Date text placeholder to display a formatted date instead of a format. Follow up to Date repeat UI changes.

Issue #874322, The All Day functionality has been moved into a separate module and hooks were added to make it easier for other modules to inject steps into date processing.

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 #1266536, Keep timezone adjustments from altering the values for repeating date EXCEPTIONS and ADDITIONS.

Issue #1362758, Add empty file for the date_plugin_display_attachment.inc file that was removed, to avoid fatal errors if it is missing on a site that formerly used it.

 Issue #1363460, Make sure widget dates do not end up with the current date when they should be empty.

Issue #1353790, Hide missing index notice if the value in the Date Popup does not match the expected value, it will still get trapped as a validation error.

Add notes to the CHANGELOG.txt explaining what to do if you were using a Date Browser, now that it has been removed.

Issue #1353790, Make sure Date Popup properly translates the default value if it includes month or day names.

Issue #1217796, Make sure that All Day formatting works correctly even if the All Day label is empty.

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

The repeat description was lost by a recent change to the theme that sent the element through the theme twice.

Remove date_get_nested_elements() function. Not being used and I don't want other code to start expecting it.

Issue #1266144, The end date should get set to blank if it is optional and matches the start date, but only if it is not populated by default values.

Issue #1349510, Make sure default values get populated before processing so they still get set on hidden fields.