- Enh #10764:`yii\helpers\Html::tag()` and `::beginTag()` return content without any HTML when the `$tag` attribute is `false` or `null` (pana1990)
- Enh #10941: Added `yii\helpers\ArrayHelper::isTraversable`, added support for traversable selections for dropdownList, radioList and checkboxList in `yii\helpers\Html` (sammousa)
- Eng #10976:`Inflector::transliterate()` now uses `strtr` instead of `str_replace` (DrDeath72)
- Bug #11040: Check parameter 'recursive' and disable recursive copying with option 'recursive' => false in method BaseFileHelper::copyDirectory (Ni-san)
- Chg: HTMLPurifier dependency updated to `~4.6` (samdark)