--- title: Java Annotated Monthly – October 2026 | daily.dev description: A roundup newsletter from JetBrains covering Java and Kotlin ecosystem news for the month, led by the release of Java 27 (with day-one IntelliJ IDEA support)... canonical: https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Java Annotated Monthly – October 2026 | daily.dev og:description: A roundup newsletter from JetBrains covering Java and Kotlin ecosystem news for the month, led by the release of Java 27 (with day-one IntelliJ IDEA support)... og:url: https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl og:image: https://api.daily.dev/og/posts/liFO0g5Xl.png og:image:alt: Java Annotated Monthly – October 2026 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. # Java Annotated Monthly – October 2026 **[JetBrains](https://daily.dev/sources/jetbrains)** · 6 min read · 4 upvotes · 0 comments ## Summary A roundup newsletter from JetBrains covering Java and Kotlin ecosystem news for the month, led by the release of Java 27 (with day-one IntelliJ IDEA support) and the announcement of JetBrains Air, an agentic software development product line now in EAP for IDEs. It curates links on JDK 27 security and performance updates, upcoming JDK 28 JEPs, Java tutorials, Kotlin Corner updates including KotlinConf 2027 and the State of Kotlin report, a large AI/agentic-development section, Spring and Quarkus news, upcoming conferences, and community culture pieces. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What's new in Java 27 and does IntelliJ IDEA support it right away? Java 27 was released and IntelliJ IDEA supports it from day one. The release includes security enhancements, performance improvements, and runtime updates, with JetBrains publishing a dedicated overview of Java 27 support in IntelliJ IDEA alongside a release stream covering the changes. _Developers tracking JDK upgrades can follow Java 27 coverage and tooling support on daily.dev._ ### What is JetBrains Air and how does it relate to IntelliJ IDEA? JetBrains Air is a newly announced system of products for agentic software development, designed to bring AI agent workflows into the development process. An Early Access Program (EAP) version of Air in IDEs has since been released, letting developers try agentic features directly inside JetBrains IDEs like IntelliJ IDEA. _Those evaluating agentic coding tools can keep up with JetBrains Air developments on daily.dev._ ## Similar posts on daily.dev - [Java Annotated Monthly – November 2025](https://daily.dev/posts/java-annotated-monthly-november-2025-zulp6zheo) · JetBrains · 1 upvotes · 0 comments - [Java Weekly, Issue 647](https://daily.dev/posts/java-weekly-issue-647-sxafsgauq) · Baeldung · 4 upvotes · 0 comments - [Java Annotated Monthly – June 2026](https://daily.dev/posts/java-annotated-monthly-june-2026-wvtanbqka) · JetBrains · 0 upvotes · 0 comments - [Java Annotated Monthly – August 2026](https://daily.dev/posts/java-annotated-monthly-august-2026-vhmcba0us) · JetBrains · 4 upvotes · 0 comments - [Java Annotated Monthly – March 2026](https://daily.dev/posts/java-annotated-monthly-march-2026-qpkxjc79a) · JetBrains · 0 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#devtools](https://daily.dev/tags/devtools), [#java](https://daily.dev/tags/java), [#spring](https://daily.dev/tags/spring), [#kotlin](https://daily.dev/tags/kotlin) [View this post on daily.dev](https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl) ```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":"Java Annotated Monthly – October 2026","url":"https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl"},"datePublished":"2026-10-05T14:00:32.850Z","dateModified":"2026-10-05T14:00:58.729Z","description":"A roundup newsletter from JetBrains covering Java and Kotlin ecosystem news for the month, led by the release of Java 27 (with day-one IntelliJ IDEA support)...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4bd5f666cf90ab4470408548d7c52620?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4bd5f666cf90ab4470408548d7c52620?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"JetBrains","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"JetBrains","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/53ecf0c676f34b3896ee109609d91efa","url":"https://daily.dev/sources/jetbrains"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":4},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ai-agents,devtools,java,spring,kotlin","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"JetBrains","item":"https://daily.dev/sources/jetbrains"},{"@type":"ListItem","position":3,"name":"Java Annotated Monthly – October 2026"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/java-annotated-monthly-october-2026-lifo0g5xl#faq","mainEntity":[{"@type":"Question","name":"What's new in Java 27 and does IntelliJ IDEA support it right away?","acceptedAnswer":{"@type":"Answer","text":"Java 27 was released and IntelliJ IDEA supports it from day one. 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