--- title: Manticore Search 27.1.5: Authentication, sharded tables,... description: Manticore Search 27.1.5 is a major release covering versions 25.0.1 through 27.1.5. Key additions include built-in authentication and authorization (users,... canonical: https://daily.dev/posts/manticore-search-27-1-5-authentication-sharded-tables-conversational-search-and-faster-vector-sea-vaeuj65j7 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Manticore Search 27.1.5: Authentication, sharded tables, conversational search and faster vector search | daily.dev og:description: Manticore Search 27.1.5 is a major release covering versions 25.0.1 through 27.1.5. Key additions include built-in authentication and authorization (users,... og:url: https://daily.dev/posts/manticore-search-27-1-5-authentication-sharded-tables-conversational-search-and-faster-vector-sea-vaeuj65j7 og:image: https://api.daily.dev/og/posts/VAEUJ65j7.png og:image:alt: Manticore Search 27.1.5: Authentication, sharded tables, conversational search and faster vector search og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Manticore Search 27.1.5: Authentication, sharded tables, conversational search and faster vector search **[Manticore](https://daily.dev/sources/manticoresearch)** · 5 min read · 2 upvotes · 0 comments ## Summary Manticore Search 27.1.5 is a major release covering versions 25.0.1 through 27.1.5. Key additions include built-in authentication and authorization (users, passwords, bearer tokens, fine-grained permissions across MySQL and HTTP), sharded tables for write-heavy deployments, conversational search via CREATE CHAT MODEL and CALL CHAT (RAG-style Q&A over vectorized tables), and significantly faster HNSW vector index builds using multithreaded construction. Faceting improvements include a new facet_filter_mode for e-commerce-style filters, plus statistical aggregations (percentiles, percentile_ranks, mad), date_histogram timezone/offset support, and OpenSearch Dashboards compatibility. The release also adds a Ukrainian lemmatizer, dict=keywords_32k for long tokens, EXIT CLUSTER for online node removal, and 65+ bug fixes covering KNN, replication, binary MySQL protocol, and columnar table crashes. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What happens if I enable authentication in Manticore Search 27.0.0 or later? Enabling built-in authentication and authorization, introduced in Manticore Search 27.0.0, disables anonymous access entirely. It covers MySQL, HTTP/HTTPS, distributed remote agents, and replication operations. Because of this, upgrade remote agents and replication peers first, then upgrade masters, and only enable auth once the whole topology runs the new version, since distributed and replication operations require matching stored auth data across daemons. _daily.dev helps teams planning staged auth rollouts keep track of breaking changes like this one._ ### Did Manticore Search change how replicated table data is stored on disk? Yes, Manticore Search 26.0.0 changed the replication storage layout so incoming replicated tables now live under the normal data_dir layout instead of the previous cluster data_dir//path structure. Anyone running replication clusters with a custom path may need to move or re-synchronize replicated tables after upgrading, and downgrading is only safe before the new layout takes effect. _Track storage layout changes like this on daily.dev before touching production replication clusters._ ### How do I run conversational search over existing vector data in Manticore Search? Manticore Search 27.1.5 adds conversational search through CREATE CHAT MODEL and CALL CHAT, letting you query an already-vectorized table directly instead of building a separate retrieval layer. It runs KNN on a FLOAT_VECTOR field, builds LLM context from that field's from='...' source columns, tracks conversation history by conversation_uuid, and returns both the answer and supporting sources. _daily.dev is where developers wiring up retrieval-augmented search features keep up with releases like this._ ## Similar posts on daily.dev - [Manticore Search 28.4.4: Faster KNN, better conversational search, easier installs and more faceting controls](https://daily.dev/posts/manticore-search-28-4-4-faster-knn-better-conversational-search-easier-installs-and-more-faceting-nywho7tpy) · Manticore · 0 upvotes · 0 comments - [Manticore Search 25.0.0](https://daily.dev/posts/manticore-search-25-0-0-xaked8brj) · Manticore · 0 upvotes · 0 comments - [Manticore Search 29.0.2: Better sharded-table operations and safer maintenance](https://daily.dev/posts/manticore-search-29-0-2-better-sharded-table-operations-and-safer-maintenance-gzef7omtg) · Manticore · 0 upvotes · 0 comments - [Manticore Search 17.5.1](https://daily.dev/posts/manticore-search-17-5-1-kxwg1lxjz) · Manticore · 0 upvotes · 0 comments - [Manticore Search 15.1.0 Released](https://daily.dev/posts/manticore-search-15-1-0-released-psy8wfbf0) · Manticore · 1 upvotes · 0 comments --- Tags: [#authentication](https://daily.dev/tags/authentication), [#vector-search](https://daily.dev/tags/vector-search), [#full-text-search](https://daily.dev/tags/full-text-search), [#manticore-search](https://daily.dev/tags/manticore-search) [View this post on daily.dev](https://daily.dev/posts/manticore-search-27-1-5-authentication-sharded-tables-conversational-search-and-faster-vector-sea-vaeuj65j7) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Manticore Search 27.1.5: Authentication, sharded tables, conversational search and faster vector search","url":"https://daily.dev/posts/manticore-search-27-1-5-authentication-sharded-tables-conversational-search-and-faster-vector-sea-vaeuj65j7","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/manticore-search-27-1-5-authentication-sharded-tables-conversational-search-and-faster-vector-sea-vaeuj65j7"},"datePublished":"2026-06-19T15:15:00.616Z","dateModified":"2026-09-13T19:11:41.431Z","description":"Manticore Search 27.1.5 is a major release covering versions 25.0.1 through 27.1.5. 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