{"id":887,"date":"2016-04-08T15:01:27","date_gmt":"2016-04-08T13:01:27","guid":{"rendered":"http:\/\/sematext.solr.pl\/?p=887"},"modified":"2020-11-14T15:02:03","modified_gmt":"2020-11-14T14:02:03","slug":"lucene-and-solr-6-0","status":"publish","type":"post","link":"https:\/\/solr.pl\/en\/2016\/04\/08\/lucene-and-solr-6-0\/","title":{"rendered":"Lucene and Solr 6.0"},"content":{"rendered":"<p>We are very pleased that we can inform that today, Lucene and Solr <strong>6.0<\/strong> has been released. It is a next major release, planned for a longer time now which cuts down backwards compatibility. Let&#8217;s look what are the changes included in this version.<\/p>\n\n\n<!--more-->\n\n\n<p>Some of the changes included in the Lucene library:<\/p>\n<ul>\n<li><strong>Java 8<\/strong> is the minimum version you can use with Lucene from now<\/li>\n<li><strong>BM25<\/strong> is the default similarity model now, replacing the <em>TF\/IDF<\/em> one<\/li>\n<li>Spatial module no longer depends on third-party libraries<\/li>\n<li>Legacy numeric types (like int, float, long, double, LatLonField) have been replaced with new Dimensional points that are faster and less memory demanding<\/li>\n<li><em>TermsQuery<\/em> is now faster because of more aggressive caching<\/li>\n<\/ul>\n<p>Some of the changes in the Solr search server:<\/p>\n<ul>\n<li>Default similarity configuration has been altered to provide better relevancy<\/li>\n<li>Default similarity has been changed from <em>TF\/IDF<\/em> to <strong>BM25<\/strong><\/li>\n<li><em>DefaultSimilarityFactory<\/em> has been removed<\/li>\n<li>Schema API methods allowing retrieval of information are now available in the bulk API<\/li>\n<li>Deprecated <em>SolrServer<\/em> has been removed and replaced by <em>SolrClient<\/em> class<\/li>\n<li>Parallel SQL has been introduced allowing to use SQL query language with SolrCloud<\/li>\n<li>Basic graph traversal query<\/li>\n<li>First release of cross data center replication<\/li>\n<li>The <em>\/sql<\/em>, <em>\/export<\/em> and <em>\/stream<\/em> handlers are now available by default and removed from <em>solrconfig.xml<\/em> file<\/li>\n<li>Changes related to Lucene 6.0<\/li>\n<\/ul>\n<p>The full list of changes in Lucene library is available at <a href=\"http:\/\/wiki.apache.org\/lucene-java\/ReleaseNote60\">http:\/\/wiki.apache.org\/lucene-java\/ReleaseNote60<\/a><br>\n. Full list of changes in Solr search server is available at <a href=\"http:\/\/wiki.apache.org\/solr\/ReleaseNote60\">http:\/\/wiki.apache.org\/solr\/ReleaseNote60<\/a>.<\/p>\n<p>Apache Lucene library <strong>6.0<\/strong> can be downloaded from: <a href=\"http:\/\/www.apache.org\/dyn\/closer.cgi\/lucene\/java\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.apache.org\/dyn\/closer.cgi\/lucene\/java\/<\/a>. If you want to download Solr search server <strong>6.0<\/strong> go to <a href=\"http:\/\/www.apache.org\/dyn\/closer.cgi\/lucene\/solr\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.apache.org\/dyn\/closer.cgi\/lucene\/solr\/<\/a>.<\/p>\n<p>Happy searching \ud83d\ude09<\/p>","protected":false},"excerpt":{"rendered":"<p>We are very pleased that we can inform that today, Lucene and Solr 6.0 has been released. It is a next major release, planned for a longer time now which cuts down backwards compatibility. Let&#8217;s look what are the changes<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[26,27],"tags":[162,257,164],"class_list":["post-887","post","type-post","status-publish","format-standard","hentry","category-lucene-en","category-solr-en","tag-lucene-2","tag-release-2","tag-solr-2"],"_links":{"self":[{"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/posts\/887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/comments?post=887"}],"version-history":[{"count":1,"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/posts\/887\/revisions"}],"predecessor-version":[{"id":888,"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/posts\/887\/revisions\/888"}],"wp:attachment":[{"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/media?parent=887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/categories?post=887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/solr.pl\/en\/wp-json\/wp\/v2\/tags?post=887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}