Released version 3.0.4

• FormMacros: added {formPrint $form}
• netteForms: added mime-type validation #173
• netteForms: image validator accepts image/webp
• SelectBox, MultiSelectBox: added setOptionAttribute()
• Container::getValues('array') propagates arrays to inner containers only when mappedType is not set
• Validator::validateInteger() returns false when integer is too big
• DefaultFormRenderer: options 'class' & 'id' are used for 'control' part when 'pair' part is empty
• DefaultFormRenderer: supports option 'nextTo' & style 'control .multi'
• renders correctly Nette\Utils\IHtmlString in data-nette-rules #243
• getLabel() removed return type void #241
• FormsExtension: uses $initialization

For the details you can have a look at the diff.