Added

• [#1470] global_search option to the StringFilter (@VincentLanglet)
• [#1457] treat_null_as option to BooleanFilter (@VincentLanglet)
• [#1477] GroupableConditionAwareInterface (@VincentLanglet)

Deprecated

• [#1477] "or_group" option in Filter objects (@VincentLanglet)
• [#1477] Filter::$groupedOrExpressions (@VincentLanglet)

Fixed

• [#1473] Deprecation from SonataAdminBundle 3.x (@dmaicher)
• [#1470] Stop using ChoiceTypeFilter for global search (@VincentLanglet)
• [#1477] Not resetting Filter::$groupedOrExpressions static property (see sonata-project/SonataAdminBundle#7096) (@VincentLanglet)