up to 2.5.0 - Atomic Updates (partials) - Simple Optimistic Concurrency - Compatibility with PHP 7.1, 7.2, 7.3, latest 7.4 - Enable gzip encoding if server supports it - Fix Real Time Get requests fails if it wasn't the first request - Fix addQueryField return wrong query - Fix Solr Extension build fail with curl 7.19+ https://pecl.php.net/package/solr/2.5.0