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<!DOCTYPE html> <html lang="en-gb"> <head> <title>Help - Frequently Asked Questions - Homo_sapiens - Ensembl genome browser 113</title> <link rel="stylesheet" type="text/css" media="all" href="/minified/98adc89a8b4418c03a4c81d5bf76272d.css"/><link rel="stylesheet" type="text/css" media="all" href="/minified/9bafd8bb591fb39bcb766b0160434c45.image.css"/> <link href="/i/ensembl-favicon.png" type="image/png" rel="icon" /> <link href="/apple-touch-icon.png" type="image/png" rel="apple-touch-icon" /> <link href="//useast.ensembl.org/opensearch/all.xml" type="application/opensearchdescription+xml" rel="search" title="Ensembl (All)" /> <meta name="google-site-verification" content="tG3WW0bg9gNaIHH002gJl-fV2k0bzf-ZxC8pBqXTaNo" /> <meta name="viewport" content="target-densitydpi=device-dpi, width=device-width, initial-scale=1.0, maximum-scale=2.0, user-scalable=yes" /> <script>var prefetch = ['/minified/8b49a46e34da8ff984905ba1470c2f54.png','/minified/9cf07063d9febd1e9344ca4a6cc02cb1.png','/minified/ff8270b50aa958c83f1fe0c29e61a75a.png','/minified/95cdc75b8720f22b080d415a4915e7a1.png','/minified/f37021b24ed3c44d7252707733a6c8e3.png','/minified/79a5fb49f716554891451d08438ee679.png','/minified/d2faa6d6cba3f9fe2b841c9ca08bb867.jpg'];</script> <script defer type="text/javascript" src="/minified/9239335eaf61b74631521a0b68948ac7.js"></script> <script defer type="text/javascript" src="/minified/725a4b78c3f6c26655a50fb3dd6b1888.js"></script> </head> <body data-pace="2" id="ensembl-webpage" class="pop ie ie7 ie67 no_tabs"> <div id="min_width_container"> <div id="min_width_holder">   <div id="masthead" class="js_panel"> <input type="hidden" class="panel_type" value="Masthead" /> <div class="logo_holder"><a href="/"><div class="logo-header print_hide" title="Ensembl mirror"> </div></a><img src="/i/e-ensembl_print.gif" alt="Ensembl mirror" title="Ensembl mirror" class="screen_hide_inline" style="width:170px;height:45px" /></div> <div class="mh print_hide"> <div class="account_holder"></div> <div class="tools_holder"></div> <div class="search_holder print_hide"></div> </div> </div> <div id="main_holder"> <div id="page_nav_wrapper"> <div id="page_nav" class="nav print_hide js_panel floating"> <input type="hidden" class="panel_type" value="LocalContext" /> <div class="header">Help</div> <ul class="local_context"><li class="top_level"><img alt="" src="/i/leaf.gif" /><a href="/Multi/Help/Search?db=core" title="Search" class="Search">Search</a></li><li class="parent top_level"><img alt="" src="/i/open.gif" class="Help_topics toggle" /><span class="disabled">Help topics</span><ul><li class="active"><img src="/i/leaf.gif" alt="" /><a class="Frequently_Asked_Questions" title="Frequently Asked Questions" href="/Multi/Help/Faq?db=core">Frequently Asked Questions</a></li><li class=""><img src="/i/leaf.gif" alt="" /><a class="Video_Tutorials" title="Video Tutorials" href="/Multi/Help/Movie?db=core">Video Tutorials</a></li><li class="last"><img src="/i/leaf.gif" alt="" /><a href="/Multi/Help/Glossary?db=core" title="Glossary" class="Glossary">Glossary</a></li></ul></li><li class="last top_level"><img alt="" src="/i/leaf.gif" /><a class="Contact_HelpDesk" title="Contact HelpDesk" href="/Multi/Help/Contact?db=core">Contact HelpDesk</a></li></ul> <p class="invisible">.</p> </div> </div> <div id="main"> <div class="panel js_panel"> <input type="hidden" class="panel_type" value="Content" /> <div class="content"><div class="session_messages js_panel"><input type="hidden" class="panel_type" value="Message"></div><h3>What is an Ensembl release?</h3><p><p>Ensembl produces a new version (release) of the website and underlying databases every 2-3 months. 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value=Poecilia_formosa|Gasterosteus_aculeatus|Capra_hircus_blackbengal|Sus_scrofa_berkshire|Gasterosteus_aculeatus_freshwater_bot|Anas_zonorhyncha|Spermophilus_dauricus|Notamacropus_eugenii|Bos_taurus|Fukomys_damarensis|Procavia_capensis|Gopherus_evgoodei|Colobus_angolensis_palliatus|Heterocephalus_glaber_male|Sus_scrofa_meishan|Dicentrarchus_labrax|Ictidomys_tridecemlineatus|Parus_major|Buteo_japonicus|Cottoperca_gobio|Urocitellus_parryii|Sinocyclocheilus_anshuiensis|Esox_lucius|Astatotilapia_calliptera|Ovis_aries_qiaoke|Sus_scrofa_hampshire|Ursus_americanus|Nothoprocta_perdicaria|Gallus_gallus_GCA_000002315.5|Oryctolagus_cuniculus|Eptatretus_burgeri|Dromaius_novaehollandiae|Falco_tinnunculus|Vombatus_ursinus|Sphaeramia_orbicularis|Mandrillus_leucophaeus|Gadus_morhua_celtic_sea|Athene_cunicularia|Prolemur_simus|Sus_scrofa_bama_miniature|Apteryx_haastii|Xenopus_tropicalis|Ursus_thibetanus_thibetanus|Sorex_araneus|Ovis_aries_hu|Latimeria_chalumnae|Saccharomyces_cerevisiae|Sus_scrofa_rongchang|Ictalurus_punctatus|Rhinopithecus_bieti|Panthera_leo|Sphenodon_punctatus|Mus_musculus_AKR_J|Saimiri_boliviensis_boliviensis|Mus_musculus_DBA_2J|Ovis_aries_kermani|Felis_catus|Ovis_aries_texel|Myripristis_murdjan|Anser_brachyrhynchus|Crocodylus_porosus|Gadus_morhua|Taeniopygia_guttata|Mus_musculus_A_J|Oryzias_latipes|Microtus_ochrogaster|Meriones_unguiculatus|Ursus_maritimus|Caenorhabditis_elegans|Otolemur_garnettii|Theropithecus_gelada|Echinops_telfairi|Microcebus_murinus|Anser_cygnoides|Ornithorhynchus_anatinus|Electrophorus_electricus|Ovis_aries_chinese_merino|Zosterops_lateralis_melanops|Erythrura_gouldiae|Salarias_fasciatus|Oncorhynchus_mykiss|Sus_scrofa_euw1|Tursiops_truncatus|Mesocricetus_auratus|Papio_anubis|Junco_hyemalis|Astyanax_mexicanus|Terrapene_carolina_triunguis|Sus_scrofa_bamei|Pogona_vitticeps|Equus_caballus|Callithrix_jacchus|Gorilla_gorilla|Cebus_imitator|Monodon_monoceros|Cervus_hanglu_yarkandensis|Aquila_chrysaetos_chrysaetos|Pan_troglodytes|Takifugu_rubripes|Fundulus_heteroclitus|Capra_hircus_saanen_dairy|Tupaia_belangeri|Dasypus_novemcinctus|Zonotrichia_albicollis|Haplochromis_burtoni|Cavia_porcellus|Chrysolophus_pictus|Monopterus_albus|Maylandia_zebra|Phasianus_colchicus|Petromyzon_marinus|Cyprinus_carpio_hebao_red|Vicugna_pacos|Mus_musculus_129S1_SvImJ|Peromyscus_maniculatus_bairdii|Seriola_lalandi_dorsalis|Apteryx_owenii|Sus_scrofa_ningxiang|Amphilophus_citrinellus|Lepisosteus_oculatus|Sus_scrofa_ossabaw_miniature|Salmo_salar|Periophthalmus_magnuspinnatus|Meleagris_gallopavo|Mustela_putorius_furo|Mus_musculus_BALB_cJ|Geospiza_fortis|Salmo_salar_north_american_origin_brian|Piliocolobus_tephrosceles|Gambusia_affinis|Myotis_lucifugus|Stachyris_ruficeps|Cyprinus_carpio_huanghe|Oryzias_latipes_hsok|Gopherus_agassizii|Strigops_habroptila|Oryzias_latipes_hni|Bos_grunniens|Pavo_cristatus|Capra_hircus|Anolis_carolinensis|Tetraodon_nigroviridis|Catagonus_wagneri|Pteropus_vampyrus|Mus_musculus_CBA_J|Camarhynchus_parvulus|Sus_scrofa_wuzhishan|Lonchura_striata_domestica|Mus_musculus_NOD_ShiLtJ|Mus_caroli|Propithecus_coquereli|Ailuropoda_melanoleuca|Oryzias_sinensis|Nothobranchius_furzeri|Malurus_cyaneus_samueli|Callorhinchus_milii|Sus_scrofa_landrace|Canis_lupus_dingo|Macaca_mulatta|Ovis_aries_rambouillet|Sus_scrofa_tibetan|Denticeps_clupeoides|Cyprinus_carpio_german_mirror|Stegastes_partitus|Danio_rerio|Sparus_aurata|Oryzias_melastigma|Sus_scrofa_pb115|Pelodiscus_sinensis|Sus_scrofa_jinhua|Castor_canadensis|Oreochromis_niloticus|Corvus_moneduloides|Macaca_fascicularis|Sinocyclocheilus_grahami|Choloepus_hoffmanni|Cavia_aperea|Neolamprologus_brichardi|Nannospalax_galili|Panthera_tigris_altaica|Gallus_gallus|Gouania_willdenowi|Mus_pahari|Strix_occidentalis_caurina|Apteryx_rowi|Cricetulus_griseus_picr|Laticauda_laticaudata|Scleropages_formosus|Bubo_bubo|Anas_platyrhynchos|Lepidothrix_coronata|Sciurus_vulgaris|Jaculus_jaculus|Moschus_moschiferus|Struthio_camelus_australis|Rattus_norvegicus|Melopsittacus_undulatus|Poecilia_reticulata|Canis_lupus_familiarisboxer|Suricata_suricatta|Ovis_aries_east_friesian|Larimichthys_crocea|Lynx_canadensis|Mus_spicilegus|Sus_scrofa_meishan_GCA_017957985.1|Accipiter_nisus|Cyanistes_caeruleus|Paramormyrops_kingsleyae|Bos_indicus_hybrid|Catharus_ustulatus|Rhinolophus_ferrumequinum|Balaenoptera_musculus|Xiphophorus_maculatus|Mus_spretus|Sus_scrofa_duroc|Oncorhynchus_kisutch|Otus_sunia|Rhinopithecus_roxellana|Cercocebus_atys|Chinchilla_lanigera|Anas_platyrhynchos_platyrhynchos|Sander_lucioperca|Sus_scrofa|Delphinapterus_leucas|Chrysemys_picta_bellii|Sus_scrofa_nihs_2020|Pundamilia_nyererei|Mus_musculus_LP_J|Oryzias_javanicus|Acanthochromis_polyacanthus|Hippocampus_comes|Ovis_aries_romanov|Ficedula_albicollis|Sarcophilus_harrisii|Notechis_scutatus|Monodelphis_domestica|Carlito_syrichta|Cricetulus_griseus_chok1gshd|Astyanax_mexicanus_pachon|Amazona_collaria|Bos_taurus_hybrid|Chelydra_serpentina|Cyprinus_carpio_carpio|Mus_musculus_CAST_EiJ|Aotus_nancymaae|Clupea_harengus|Rattus_norvegicus_SHRUtx|Varanus_komodoensis|Ovis_aries_white_dorper|Cyclopterus_lumpus|Coturnix_japonica|Numida_meleagris|Drosophila_melanogaster|Xiphophorus_couchianus|Scophthalmus_maximus|Pygocentrus_nattereri|Naja_naja|Anabas_testudineus|Cyprinodon_variegatus|Loxodonta_africana|Marmota_marmota_marmota|Mus_musculus_FVB_NJ|Mus_musculus_C3H_HeJ|Amphiprion_ocellaris|Salvator_merianae|Sinocyclocheilus_rhinocerous|Erpetoichthys_calabaricus|Rattus_norvegicus_SHRSPBbbUtx|Mus_musculus_NZO_HlLtJ|Parambassis_ranga|Lates_calcarifer|Oncorhynchus_tshawytscha|Canis_lupus_familiarisbasenji|Salmo_trutta|Cairina_moschata_domestica|Octodon_degus|Chelonoidis_abingdonii|Mastacembelus_armatus|Zalophus_californianus|Amphiprion_percula|Manacus_vitellinus|Capra_hircus_xinong_saanen_dairy|Oreochromis_aureus|Vulpes_vulpes|Pseudonaja_textilis|Homo_sapiens|Cricetulus_griseus_crigri|Seriola_dumerili|Mus_musculus|Mus_musculus_PWK_PhJ|Mus_musculus_C57BL_6NJ|Podarcis_muralis|Pan_paniscus|Camelus_dromedarius|Phocoena_sinus|Mus_musculus_WSB_EiJ|Heterocephalus_glaber_female|Gasterosteus_aculeatus_marine_syl|Echeneis_naucrates|Canis_lupus_familiarisgermanshepherd|Nomascus_leucogenys|Neogobius_melanostomus|Mola_mola|Equus_asinus|Sus_scrofa_usmarc|Kryptolebias_marmoratus|Calidris_pygmaea|Dipodomys_ordii|Physeter_catodon|Cynoglossus_semilaevis|Salmo_salar_north_american_atlantic_salmon|Betta_splendens|Salmo_salar_european_origin_alta|Pelusios_castaneus|Pongo_abelii|Ovis_aries_polled_dorset|Panthera_pardus|Labrus_bergylta|Poecilia_mexicana|Carassius_auratus|Ochotona_princeps|Sus_scrofa_pietrain|Gallus_gallus_GCA_016700215.2|Poecilia_latipinna|Phascolarctos_cinereus|Leptobrachium_leishanense|Rattus_norvegicus_WKYBbb|Bos_mutus|Ciona_intestinalis|Bison_bison_bison|Gasterosteus_aculeatus_marine_bam|Sus_scrofa_largewhite|Hucho_hucho|Canis_lupus_familiarisgreatdane|Neovison_vison|Calidris_pugnax|Canis_lupus_familiaris|Erinaceus_europaeus|Ciona_savignyi|Macaca_nemestrina|Serinus_canaria|Chlorocebus_sabaeus> 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