• Add ruflin/Elastica 3.x support.
• Add new repository manager.
• Add support for DateTimeInterface in ModelToElasticaAutoTransformer.
• Add support for suggesters.
• Dropped PHP 5.3 and 5.4 support.
• Removed Symfony < 2.7 support.
• [BC break] Allow additional parameters to AbstractProvider::queryBuilder.
• [BC break] Added PaginatorAdapterInterface::getSuggests.
• [BC break] Removed faceted search support.
• [BC break] Removed AbstractProvider::isObjectIndexable.
• [BC break] Removed AbstractProvider::getMemoryUsage.
• [BC break] Removed deprecated Resetter class.
• [BC break] Removed deprecated Client class.
• [BC break] Removed deprecated IndexManager class.
• [BC break] Removed deprecated DynamicIndex class.
• [BC break] Removed deprecated immediate configuration option.
• [BC break] Removed Search annotations as they cannot be used anymore.
• [BC break] Removed TransformedFinder::moreLikeThis.
• [BC break] Removed ignore_unmapped support for Paginator.