Issue #1417872, Make sure empty year field is validated in the same way other date parts are validated.

Issue #1380350, Rework SQL query handling to pass in a comparison date for computing offsets to better handle dates affected by DST adjustments.

Issue #1408430, Views pagination with exposed, unset, filters, results in invalid default values. Treat them as empty input.

Issue #1397126, Add Date API section to administration menu and consolidate Date Popup and Date Tools settings there.

Tweak the all day formula to check for 59:59 even for items that use increments, to help fix problems when the calendar creates all day values.

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.