Issue #2902707 by Jo Fitzgerald, mpdonadio, Adita, gambry, JayKandari, jhedstrom, refman1073: Document magic methods in DateTimePlus and DrupalDateTime using phpDoc @method

Issue #2910081 by mpdonadio, neclimdul, gambry, jhedstrom, alexpott: DateTimePlus calls should be chainable

Issue #2830094 by mpdonadio, Yogesh Pawar, arunkumark, jhedstrom, larowlan, alexpott: Deprecate and remove usages of datetime_date_default_time()

Issue #2722699 by anoopjohn, mfernea, Mile23, martin107: Fix Drupal.Commenting.FunctionComment.InvalidReturnNotVoid

Issue #2903908 by mfernea, martin107: Fix 'Drupal.Commenting.FunctionComment.ParamCommentIndentation' coding standard

Issue #2902723 by mfernea, ccjjmartin: Fix 'Drupal.Commenting.FunctionComment.ReturnCommentIndentation' coding standard

Issue #2889814 by mpdonadio: DateTimePlus doesn't apply the correct time zone when converting a string with an offset

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2722621 by anoopjohn: Fix Drupal.Commenting.FunctionComment.InvalidReturn and Drupal.Commenting.FunctionComment.VoidReturn

Issue #2702835 by ztl8702, pjonckiere, himanshugautam, dpovshed, mpdonadio: Update Doxygen for \Drupal\Component\DateTimePlus

Issue #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

Issue #2711537 by chgasparoto, kostyashupenko: Syntax errors (un-quoted or mis-quoted strings) in various code examples in docs

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2572643 by alexpott, attiks, Jelle_S, jhodgdon: Fix Drupal.Commenting.FileComment coding standard

Issue #2571845 by drupal.ninja03, hussainweb, anil280988, snehi, jhodgdon, GoZ, stefan.r: Links to wikipedia/php.net should be part of the actual t() string so they can be localized

Issue #2515018 by joshi.rohit100, sdstyles, joelpittet: Lowercase the instances of camelcase'd instanceOf in core for consistency

Issue #2568613 by alexpott, lauriii, pwolanin: Remove HTML support from date formats and replace remaining !placeholder where format_date() and 'date.formatter' => format() are used

Issue #2562487 by stefan.r, chx, tim.plunkett, dawehner, alexpott: Get better error reporting from __toString

Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2497447 by mpdonadio, stefan.r, jhodgdon: DrupalDateTime::format() and DateTimePlus::format() ignore the timezone setting

Issue #2457405 by stefan.r, andypost: DateTimePlus violates substitution principle of DateTime. Make it support PHP 7

Issue #2000384 by yuradoc, Damien Tournoud, alexpott: Fixed php-intl module causes problems with Date and Time fields when editing Basic Page.

Issue #1944636 by alexpott, YesCT: Fixed PECL Intl extension usage in DateTimePlus class broken and untested.