{"id":5506,"date":"2018-07-23T16:55:58","date_gmt":"2018-07-23T23:55:58","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=5506"},"modified":"2025-06-13T22:45:08","modified_gmt":"2025-06-14T05:45:08","slug":"couchbase-server-5-5-beta-2","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/","title":{"rendered":"Couchbase Server 5.5 Released"},"content":{"rendered":"<h2><span style=\"font-weight: 400\">Announcing Couchbase Server 5.5<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Couchbase Server 5.5 production release is now available! We are very excited to share more information about this substantial extension of the <\/span><b>Couchbase Data Platform<\/b><span style=\"font-weight: 400\">. This release introduces several new Enterprise Grade features relating to <\/span><b>agility<\/b><span style=\"font-weight: 400\">, <\/span><b>performance<\/b><span style=\"font-weight: 400\">, and <\/span><b>manageability<\/b><span style=\"font-weight: 400\"> &#8211; all based on critical feedback from our users. <\/span><\/p>\n<p><span style=\"font-weight: 400\">In this release, you will find many enhancements to new and existing services. SDK libraries have also been updated to support these updates. <\/span><\/p>\n<p><span style=\"font-weight: 400\">You can <\/span><a href=\"https:\/\/www.couchbase.com\/downloads\/\"><span style=\"font-weight: 400\">download<\/span><\/a><span style=\"font-weight: 400\"> this release right away!<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><a href=\"https:\/\/www.couchbase.com\/downloads\/\"><span style=\"font-weight: 400\">Download Couchbase Server 5.5<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><a href=\"https:\/\/hub.docker.com\/r\/couchbase\/server\/tags\/\"><span style=\"font-weight: 400\">Use Docker<\/span><\/a><span style=\"font-weight: 400\"> (couchbase\/server:5.5.0)<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Read <\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/introduction\/whats-new.html\"><span style=\"font-weight: 400\">Couchbase Server 5.5 documentation (What&#8217;s New)<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Share your thoughts on the <\/span><a href=\"https:\/\/www.couchbase.com\/forums\/\"><span style=\"font-weight: 400\">Couchbase Forums<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><a href=\"https:\/\/www.couchbase.com\/blog\/tag\/5.5\/\"><span style=\"font-weight: 400\">See all the blogs<\/span><\/a><span style=\"font-weight: 400\"> about Couchbase Server 5.5 or read below for the overview<\/span><\/li>\n<\/ul>\n<h2><b>Unmatched agility and flexibility<\/b><\/h2>\n<p><span style=\"font-weight: 400\">We continue to add new capabilities to Couchbase Server to help give more options for your development toolbox. These include new services as well as powerful updates to existing services. Here are a few of these updates.<\/span><\/p>\n<h3><b>Couchbase Eventing Service<\/b><\/h3>\n<p><span style=\"font-weight: 400\">This release introduces the Couchbase Eventing Service \u2013 a multi-dimensional scaling (MDS) service that lets customers process changes to data as they happen in near real-time. <\/span><\/p>\n<p><b>Couchbase Functions<\/b><span style=\"font-weight: 400\"> is the first offering under the Couchbase Eventing Service that enables you to write <\/span><b>server-side functions<\/b><span style=\"font-weight: 400\"> that are automatically triggered using the familiar Event-Condition-Action model. It provides an easy-to-use online javascript code editor that lets you develop and debug your code. The code can be applied to mutations that occur on the data within a Couchbase cluster. <\/span><\/p>\n<p><span style=\"font-weight: 400\">The Couchbase Eventing Service handles all the complexity of scaling to a large number of document mutations. This new offering enables you to develop deeply engaging and personalized user experiences based on real-time events. <\/span><\/p>\n<p><b>Read more<\/b><span style=\"font-weight: 400\">:<\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/eventing\/\"><span style=\"font-weight: 400\">Couchbase Eventing announcement<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/eventing\/eventing-Introduction.html\"><span style=\"font-weight: 400\">Couchbase Eventing documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/detect-sensitive-information-nosql-documents-automatically-couchbase-functions\/\"><span style=\"font-weight: 400\">Detect Sensitive Information In Your NoSQL Documents Automatically With Couchbase Functions blog post<\/span><\/a><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/03\/couchbase-5.5-db-web-console-eventing.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4739 size-large\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/03\/couchbase-5.5-db-web-console-eventing-1024x480.png\" alt=\"\" width=\"900\" height=\"422\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing-1024x480.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing-300x141.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing-768x360.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing-1536x720.png 1536w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing-20x9.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing-1320x619.png 1320w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/03\/couchbase-5.5-db-web-console-eventing.png 1882w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<h3><b>Couchbase Analytics Service<\/b><\/h3>\n<p><span style=\"font-weight: 400\">Couchbase Analytics Service (currently available as a Developer Preview) enables you to <\/span><b>analyze your JSON data in real time<\/b><span style=\"font-weight: 400\"> without the need to extract, transform, load (ETL) your data into a separate system. It allows you to <\/span><b>develop insight-driven applications<\/b><span style=\"font-weight: 400\"> quickly and easily using familiar SDKs. It removes the need for ETL and the complexity of managing a separate analytics system. <\/span><\/p>\n<p><span style=\"font-weight: 400\">With this release, Analytics is fully integrated with Couchbase Server and no longer requires additional installation. Couchbase\u2019s unique architecture for multi-dimensional scaling (MDS) allows operational and analytical queries to run concurrently without impacting one another, providing the workload isolation required for production deployments.<\/span><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/analytics\/introduction.html\"><span style=\"font-weight: 400\">Couchbase Analytics documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/configuring-analytics-in-couchbase-server-5-5\/\"><span style=\"font-weight: 400\">Configuring Couchbase Analytics blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/using-couchbase-analytics-node-js-javascript\/\"><span style=\"font-weight: 400\">Using Couchbase Analytics with Node.js and JavaScript blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/using-couchbase-analytics-complex-efficient-queries-java-application\/\"><span style=\"font-weight: 400\">Using Couchbase Analytics for Complex and Efficient Queries in a Java Application blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/data-visualization-couchbase-knowi\/\"><span style=\"font-weight: 400\">Data Visualization with Couchbase and Knowi<\/span><\/a><\/li>\n<\/ul>\n<h3><b>ANSI joins in N1QL<\/b><\/h3>\n<p><span style=\"font-weight: 400\">The Couchbase Data Platform is the only platform that extends SQL to support JSON data natively via N1QL queries. N1QL now has support for ANSI joins making it easier to migrate applications from relational databases to Couchbase. Developers can leverage their SQL knowledge to develop applications on Couchbase, thereby increasing productivity.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Here is the kind of JOIN syntax <\/span><b>now available in Couchbase<\/b><span style=\"font-weight: 400\">:<\/span><\/p>\n<pre class=\"\">SELECT DISTINCT route.destinationairport\r\nFROM `travel-sample` airport \r\nJOIN `travel-sample` route\r\nON airport.faa = route.sourceairport\r\nAND route.type = \"route\"<\/pre>\n<p><span style=\"font-weight: 400\">ANSI joins support improved data modeling capability and flexibility with Couchbase. Since you can join based on arbitrarily complex expressions, business requirements can be coded and translated effectively and efficiently. We&#8217;ve extended ANSI syntax to join on both scalars and arrays.<\/span><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/a-guide-to-n1ql-features-in-couchbase-5-5-special-edition\/\"><span style=\"font-weight: 400\">A Guide to N1QL features in Couchbase 5.5: Special Edition<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/joining-json-comparing-couchbase-n1ql-mongodb\/\"><span style=\"font-weight: 400\">Joining JSON: Comparing Couchbase N1QL &amp; MongoDB blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/n1ql\/n1ql-language-reference\/from.html#topic_rnt_zfk_np__section_ek1_jnx_1db\"><span style=\"font-weight: 400\">ANSI Join N1QL documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/ansi-join-support-n1ql\/\"><span style=\"font-weight: 400\">ANSI join support in N1QL blog<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/new-querying-features-couchbase-server\/\"><span style=\"font-weight: 400\">See it in action with other new Querying Features in Couchbase 5.5<\/span><\/a><\/li>\n<\/ul>\n<h2><b>Unparalleled performance at scale<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Helping you squeezing every last drop of ROI out of your Couchbase cluster is our primary goal when adding new performance improvements to the data platform. Many are added to the N1QL query capabilities as well as to properties of the overall system.<\/span><\/p>\n<h3><b>N1QL pushdowns &#8211; aggregate optimization<\/b><\/h3>\n<p><span style=\"font-weight: 400\">One of the key advantages of a declarative query language like N1QL is that the system can optimize and improve the query plans and execution without changing the applications. Since the introduction of N1QL, Couchbase has improved the query performance by orders of magnitude.<\/span><\/p>\n<p><span style=\"font-weight: 400\">With aggregate optimization, the query engine leverages the indexes to perform aggregate calculations to improve the performance of queries by another order of magnitude. Your existing aggregate queries, with matching indexes, will simply run faster. <\/span><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/understanding-index-grouping-aggregation-couchbase-n1ql-query\/\"><span style=\"font-weight: 400\">Understanding Index Grouping And Aggregation in Couchbase N1QL Query blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/n1ql\/n1ql-language-reference\/groupby-aggregate-performance.html#groupby-aggregate-performance\"><span style=\"font-weight: 400\">Group By and Aggregate Performance documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/new-querying-features-couchbase-server\/\"><span style=\"font-weight: 400\">New Querying Features In Couchbase 5.5 blog<\/span><\/a><\/li>\n<\/ul>\n<h3><b>Index partitioning<\/b><\/h3>\n<p><span style=\"font-weight: 400\">With support for index partitioning, you can now index a large number of documents and horizontally scale an index as needed. The system will partition the index across a number of index nodes using hash partitioning. <\/span><\/p>\n<p><span style=\"font-weight: 400\">Index partitioning is transparent to queries \u2013 one does not have to update the queries when changing the index partitioning strategy.<\/span><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/couchbase-gsi-index-partitioning\/\"><span style=\"font-weight: 400\">Divide and Conquer: Couchbase GSI Index partitioning<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/index-partitioning-couchbase-server\/\"><span style=\"font-weight: 400\">Index Partitioning in Couchbase Server 5.5 blog<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/index-service-couchbase-server-5-5\/\"><span style=\"font-weight: 400\">New Index Service Features in 5.5<\/span><\/a><\/li>\n<\/ul>\n<h3><b>End-to-end data compression<\/b><\/h3>\n<p><span style=\"font-weight: 400\">Couchbase has added compression across all layers from client to storage, significantly reducing the cost of network, memory, and storage required for existing workloads. <\/span><\/p>\n<p><span style=\"font-weight: 400\">Documents are transparently compressed when transferred between the clients and the server, in the server cache, and on disk. Documents are also compressed when transferred between clusters across data centers via XDCR.<\/span><\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/Couchbase-Server-Compression-Overview-5.5-Diagram-8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5518\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/Couchbase-Server-Compression-Overview-5.5-Diagram-8.png\" alt=\"\" width=\"954\" height=\"626\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/Couchbase-Server-Compression-Overview-5.5-Diagram-8.png 954w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/Couchbase-Server-Compression-Overview-5.5-Diagram-8-300x197.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/Couchbase-Server-Compression-Overview-5.5-Diagram-8-768x504.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/Couchbase-Server-Compression-Overview-5.5-Diagram-8-20x13.png 20w\" sizes=\"auto, (max-width: 954px) 100vw, 954px\" \/><\/a><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/understanding-couchbase\/buckets-memory-and-storage\/compression.html\"><span style=\"font-weight: 400\">Couchbase data compression documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/store-less-using-data-compression\/\"><span style=\"font-weight: 400\">Store more for less using data compression blog<\/span><\/a><\/li>\n<\/ul>\n<h2><b>New Full-Text Search index engine<\/b><\/h2>\n<p><span style=\"font-weight: 400\">The latest update to the full-text search service provides a preview of our new indexing engine, codename: scorch. For users who want to test the new performance, they can choose whether to use the current engine (version 5.0) or try the new engine (version 6.0) when creating an index through the GUI or REST API.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Indexing speed is substantially faster &#8211; <\/span><b>up to 2x faster<\/b><span style=\"font-weight: 400\">, and the index size on disk has been dramatically reduced &#8211; <\/span><b>up to 80% reduction.<\/b><\/p>\n<p><span style=\"font-weight: 400\">These are interim performance numbers as development continues. Stay tuned for the next version of Couchbase Server where these features are planned to be made generally available.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This release of Full-Text Search also includes <\/span><b>11 new language analyzers <\/b><span style=\"font-weight: 400\">including: Danish, Dutch, Finnish, German, Hungarian, Norwegian, Romanian, Russian, Spanish (Castilian), Swedish, and Turkish.<\/span><\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/fts-new-index-high-performance.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-5519\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/fts-new-index-high-performance-1024x635.png\" alt=\"\" width=\"900\" height=\"558\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance-1024x635.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance-300x186.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance-768x476.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance-1536x952.png 1536w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance-20x12.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance-1320x818.png 1320w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/fts-new-index-high-performance.png 1867w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<h2><b>The easiest platform to manage<\/b><\/h2>\n<p><span style=\"font-weight: 400\">New features for improving performance and agility also need to be supported by ease-of-management. In this release, further security features have been added as well as more failover options. We&#8217;ve also added more ways to gain insights about application performance and support for IPv6 networks.<\/span><\/p>\n<h3><b>Security compliance<\/b><\/h3>\n<p><span style=\"font-weight: 400\">Couchbase continues to extend its support for security to enable enterprises to meet increasing security compliance requirements such as the EU&#8217;s General Data Protection Regulation (GDPR) effective May 2018. We extend<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/security\/security-certs-auth.html\"> <b>X.509 certificate authentication<\/b><\/a><span style=\"font-weight: 400\"> beyond key-value data access to query and search services for all SDKs.<\/span><\/p>\n<p><span style=\"font-weight: 400\">We also support <\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/sdk\/encryption.html\"><b>field-level encryption<\/b><\/a><span style=\"font-weight: 400\"> in the SDK to protect sensitive user data. Users can also<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/clustersetup\/logging.html#story-h2-4\"> <b>enable log redaction<\/b><\/a><span style=\"font-weight: 400\"> to prevent leaking sensitive user data when using the logs for troubleshooting production issues.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Furthermore, we employ <\/span><b>system auditing to track all admin and non-admin access<\/b><span style=\"font-weight: 400\">, including<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/n1ql\/n1ql-language-reference\/n1ql-auditing.html\"> <b>auditing of query statements<\/b><\/a><span style=\"font-weight: 400\">.<\/span><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/gdpr-businesses-must-focus-digital-transformation-not-just-tick-box-compliance\/\"><span style=\"font-weight: 400\">GDPR: Businesses must focus on digital transformation, not just tick-box compliance blog<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/x-509-certificate-based-authentication\/\"><span style=\"font-weight: 400\">X.509 certificate authentication blog post <\/span><\/a><span style=\"font-weight: 400\">&#8211; <\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/security\/security-certs-auth.html\"><span style=\"font-weight: 400\">documentation<\/span><\/a><span style=\"font-weight: 400\"> &#8211; using it with <\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/sdk\/dotnet\/sdk-authentication-overview.html#story-h2-6\"><span style=\"font-weight: 400\">Couchbase SDK<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/log-redaction-in-couchbase-server-5-5\/\"><span style=\"font-weight: 400\">Log redaction in Couchbase Server 5.5 blog post<\/span><\/a><span style=\"font-weight: 400\"> &#8211; <\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/clustersetup\/logging.html#story-h2-4\"><span style=\"font-weight: 400\">documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/n1ql\/n1ql-language-reference\/n1ql-auditing.html\"><span style=\"font-weight: 400\">N1QL Querying auditing documentation<\/span><\/a><span style=\"font-weight: 400\"> &#8211; <\/span><a href=\"https:\/\/www.couchbase.com\/blog\/auditing-couchbase-n1ql-statements\/\"><span style=\"font-weight: 400\">blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/sdk\/encryption.html\"><span style=\"font-weight: 400\">SDK Field-level Encryption documentation<\/span><\/a><span style=\"font-weight: 400\"> and <\/span><a href=\"https:\/\/github.com\/couchbase\/dotnet-couchbase-encryption\/blob\/master\/README.md\"><span style=\"font-weight: 400\">a Couchbase .NET encryption example<\/span><\/a><\/li>\n<\/ul>\n<h3><b>Auto failover<\/b><\/h3>\n<p><span style=\"font-weight: 400\">Couchbase further improves <\/span><b>high availability for mission-critical deployments<\/b><span style=\"font-weight: 400\"> and reduces operator intervention. Couchbase enhances the detection of common disk failures and <\/span><b>automatically fails over<\/b><span style=\"font-weight: 400\"> the node with bad disks saving operators time and energy. It also handles multiple server failures based on the replica count to avoid data loss, and can fail over an entire server group if a rack or zone is not available.<\/span><\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/autoFailover.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-5475\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/autoFailover-1024x502.png\" alt=\"\" width=\"900\" height=\"441\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/autoFailover-1024x502.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/autoFailover-300x147.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/autoFailover-768x376.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/autoFailover-20x10.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/autoFailover.png 1300w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p><b>Read more:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/auto-failover-features-couchbase-server-5-5-developer-build\/\"><span style=\"font-weight: 400\">Auto-Failover Features in Couchbase Server 5.5 blog<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/clustersetup\/automatic-failover.html\"><span style=\"font-weight: 400\">Automatic failover documentation<\/span><\/a><\/li>\n<\/ul>\n<h3><b>Response Time Observability<\/b><\/h3>\n<p><span style=\"font-weight: 400\">With response time observability, you now have telemetry for monitoring how well your Couchbase cluster is meeting your application SLAs. In your application you can set thresholds to allow you to log operations based on performance of your requests. \u00a0You can correlate timing information from client through to server and back to quickly triage performance issues and <\/span><b>help identify the root cause<\/b><span style=\"font-weight: 400\"> of performance issues. <\/span><\/p>\n<p><span style=\"font-weight: 400\">The performance of operations are all exposed via methods you are already familiar with in the Couchbase SDK. Integration with<\/span><a href=\"https:\/\/opentracing.io\"> <span style=\"font-weight: 400\">OpenTracing<\/span><\/a><span style=\"font-weight: 400\"> is also being worked on (read: <\/span><a href=\"https:\/\/www.couchbase.com\/blog\/how-opentracing-became-important\/\"><span style=\"font-weight: 400\">why this became important<\/span><\/a><span style=\"font-weight: 400\">).<\/span><\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/couchbase-sdk-operation-timings-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5521 size-large\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/07\/couchbase-sdk-operation-timings-1-1024x460.png\" alt=\"\" width=\"900\" height=\"404\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1-1024x460.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1-300x135.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1-768x345.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1-1536x690.png 1536w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1-20x9.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1-1320x593.png 1320w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/07\/couchbase-sdk-operation-timings-1.png 2048w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p><b>Read more: <\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/sdk\/dotnet\/threshold-logging.html#threshold-logging\"><span style=\"font-weight: 400\">SDK Threshold Logging configuration documentation<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/building-an-observation-deck\/\"><span style=\"font-weight: 400\">Building an Observation Deck<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/how-opentracing-became-important\/\"><span style=\"font-weight: 400\">How OpenTracing became important<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/response-time-observability-with-the-java-sdk\/\"><span style=\"font-weight: 400\">Response Time Observability with the Java SDK<\/span><\/a><\/li>\n<\/ul>\n<h3><b>IPv6 support<\/b><\/h3>\n<p><span style=\"font-weight: 400\">With the explosion of mobile and IoT devices, enterprises are seeing an increasing percentage of their user traffic coming from IPv6. Many large enterprises are starting to deploy IPv6 infrastructure to support these IPv6 devices. We have added<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/install\/ipv6-setup.html\"> <span style=\"font-weight: 400\">IPv6 support<\/span><\/a><span style=\"font-weight: 400\"> to enable our customers to deliver exceptional user experiences with the Couchbase Data Platform.<\/span><\/p>\n<p><strong>Read more:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.couchbase.com\/blog\/ipv6-galore-couchbase\/\"><span style=\"font-weight: 400\">IPv6 Galore blog post<\/span><\/a><\/li>\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/install\/ipv6-setup.html\"><span style=\"font-weight: 400\">IPv6 setup documentation<\/span><\/a><\/li>\n<\/ul>\n<h2><b>SDK Improvements<\/b><\/h2>\n<p><span style=\"font-weight: 400\">There are many Couchbase SDK improvements that align with Couchbase Server 5.5 new features, be sure to update to the latest versions. \u00a0Refer to the following table to see which (earliest) version of the SDK you need for accessing specific 5.5 features.<\/span><\/p>\n<table id=\"whats-new__table_kt1_yrr_42b\" class=\"table\" border=\"1\" summary=\"\" rules=\"all\" cellspacing=\"0\" cellpadding=\"4\">\n<thead class=\"thead\">\n<tr class=\"row\">\n<th id=\"d126352e283\" class=\"entry cellrowborder\">SDK<\/th>\n<th id=\"d126352e286\" class=\"entry cellrowborder\">Version Supporting 5.5 Features<\/th>\n<th id=\"d126352e289\" class=\"entry cellrowborder\">Field Encryption (Unbundled libs)<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"tbody\">\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">Go<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">1.4.0<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \"><a class=\"xref\" href=\"https:\/\/github.com\/couchbaselabs\/gocbfieldcrypt\" target=\"_blank\" rel=\"noopener noreferrer\">gocbfieldcrypt<\/a><\/td>\n<\/tr>\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">Node<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">2.5.0<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \"><a class=\"xref\" href=\"https:\/\/github.com\/couchbase\/node-couchbase-encryption\" target=\"_blank\" rel=\"noopener noreferrer\">couchbase-encryption<\/a><\/td>\n<\/tr>\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">Java<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">2.6.0<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \">\n<p class=\"p\" dir=\"ltr\"><a class=\"xref\" href=\"https:\/\/github.com\/couchbase\/java-couchbase-encryption\" target=\"_blank\" rel=\"noopener noreferrer\">encryption-extension<\/a><\/p>\n<\/td>\n<\/tr>\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">.NET<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">2.6.0<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \"><a class=\"xref\" href=\"https:\/\/www.nuget.org\/packages\/Couchbase.Extensions.Encryption\" target=\"_blank\" rel=\"noopener noreferrer\">Couchbase.Extensions.Encryption<\/a><\/td>\n<\/tr>\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">Python<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">2.4.0 (Improvements pending for threshold logging)<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \"><a class=\"xref\" href=\"https:\/\/pypi.org\/project\/cbencryption\/\" target=\"_blank\" rel=\"noopener noreferrer\">cbencryption<\/a><\/td>\n<\/tr>\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">PHP<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">2.5.0<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \"><a class=\"xref\" href=\"https:\/\/packagist.org\/packages\/couchbase\/couchbase-encryption\" target=\"_blank\" rel=\"noopener noreferrer\">couchbase-encryption<\/a><\/td>\n<\/tr>\n<tr class=\"row\">\n<td class=\"entry cellrowborder\" headers=\"d126352e283 \">LCB<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e286 \">2.9.2<\/td>\n<td class=\"entry cellrowborder\" headers=\"d126352e289 \">Not applicable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>Additional improvements<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Other elements of this release include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><b>Query <\/b><span style=\"font-weight: 400\">\u2013<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/n1ql\/n1ql-language-reference\/alterindex.html\"> <span style=\"font-weight: 400\">ALTER INDEX<\/span><\/a><span style=\"font-weight: 400\">: This new declarative command provides administrators the ability to move indexes from one node to the other<\/span><\/li>\n<li style=\"font-weight: 400\"><b>Index <\/b><span style=\"font-weight: 400\">\u2013 Revamped Administrator Console and REST endpoints that expose various index usage statistics.<\/span><\/li>\n<li style=\"font-weight: 400\"><b>Full-text Search (FTS) <\/b><span style=\"font-weight: 400\">\u2013<\/span> <span style=\"font-weight: 400\">Geospatial point\/distance and bounding box queries on point data are now GA features. Read more in<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/fts\/fts-geospatial-queries.html\"> <span style=\"font-weight: 400\">Couchbase FTS geospatial documentation<\/span><\/a><span style=\"font-weight: 400\"> or the technical blog:<\/span><a href=\"https:\/\/www.couchbase.com\/blog\/geospatial-aspnet-aurelia-google-maps\/\"> <span style=\"font-weight: 400\">Geospatial Search with ASP.NET Core, Aurelia, and Google Maps<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><b>Tools <\/b><span style=\"font-weight: 400\">\u2013 Further enhancements to the<\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/backup-restore\/cbbackupmgr.html\"> <b>cbbackupmgr<\/b><span style=\"font-weight: 400\"> utility<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><b>Docs editor <\/b><span style=\"font-weight: 400\">\u2013 Edit document data from the user interface without the syntactic constraints of JSON<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400\">Resources:<\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><a href=\"https:\/\/www.couchbase.com\/downloads\/\"><span style=\"font-weight: 400\">Download Couchbase Server 5.5<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Read <\/span><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.5\/introduction\/whats-new.html\"><span style=\"font-weight: 400\">Couchbase Server 5.5 documentation (What&#8217;s New)<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><a href=\"https:\/\/www.couchbase.com\/blog\/tag\/5.5\/\"><span style=\"font-weight: 400\">Read all the blogs about Couchbase Server 5.5 &#8211; related features<\/span><\/a><\/li>\n<li style=\"font-weight: 400\"><a href=\"https:\/\/hub.docker.com\/r\/couchbase\/server\/tags\/\"><span style=\"font-weight: 400\">Use Docker image<\/span><\/a><span style=\"font-weight: 400\">: <\/span><i><span style=\"font-weight: 400\">couchbase\/server:5.5.0<\/span><\/i><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Share your thoughts on the <\/span><a href=\"https:\/\/www.couchbase.com\/forums\/\"><span style=\"font-weight: 400\">Couchbase Forums<\/span><\/a><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">I appreciate feedback on my posts and welcome you to keep in touch &#8211; drop me an email (tyler-at-couchbase.com) or\u00a0<\/span><a href=\"https:\/\/twitter.com\/1tylermitchell\"><span style=\"font-weight: 400\">connect on Twitter.<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Announcing Couchbase Server 5.5 Couchbase Server 5.5 production release is now available! We are very excited to share more information about this substantial extension of the Couchbase Data Platform. This release introduces several new Enterprise Grade features relating to agility, [&hellip;]<\/p>\n","protected":false},"author":75185,"featured_media":5017,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2294,1821,1816,2273,8683,9417,1813,1812,2201],"tags":[2258,1696],"ppma_author":[9163],"class_list":["post-5506","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analytics","category-couchbase-architecture","category-couchbase-server","category-eventing","category-geospatial","category-performance","category-security","category-n1ql-query","category-tools-sdks","tag-5-5","tag-indexing"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.7.1 (Yoast SEO v25.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Couchbase Server 5.5 Released - The Couchbase Blog<\/title>\n<meta name=\"description\" content=\"Couchbase Server 5.5 production release now available! 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This release focuses on enterprise-grade features relating to agility, performance, and manageability.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/\" \/>\n<meta property=\"og:site_name\" content=\"The Couchbase Blog\" \/>\n<meta property=\"article:published_time\" content=\"2018-07-23T23:55:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-14T05:45:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/GettyImages-495826913_super.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1366\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Tyler Mitchell - Senior Product Marketing Manager\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@1tylermitchell\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tyler Mitchell - Senior Product Marketing Manager\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/\"},\"author\":{\"name\":\"Tyler Mitchell - Senior Product Marketing Manager\",\"@id\":\"https:\/\/www.couchbase.com\/blog\/#\/schema\/person\/684cc0e5c60cd2e4b591db9621494ed0\"},\"headline\":\"Couchbase Server 5.5 Released\",\"datePublished\":\"2018-07-23T23:55:58+00:00\",\"dateModified\":\"2025-06-14T05:45:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/\"},\"wordCount\":1746,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/GettyImages-495826913_super.jpg\",\"keywords\":[\"5.5\",\"Indexing\"],\"articleSection\":[\"Couchbase Analytics\",\"Couchbase Architecture\",\"Couchbase Server\",\"Eventing\",\"Geospatial\",\"High Performance\",\"Security\",\"SQL++ \/ N1QL Query\",\"Tools &amp; SDKs\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/\",\"url\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/\",\"name\":\"Couchbase Server 5.5 Released - The Couchbase Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/couchbase-server-5-5-beta-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/GettyImages-495826913_super.jpg\",\"datePublished\":\"2018-07-23T23:55:58+00:00\",\"dateModified\":\"2025-06-14T05:45:08+00:00\",\"description\":\"Couchbase Server 5.5 production release now available! 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