--- title: JRuby 9.4.15.0 Released — JRuby.org | daily.dev description: JRuby 9.4.15.0 has been released, targeting Ruby 3.4 compatibility. This release resolves 38 issues and pull requests including security fixes (CVE-2025-58767... canonical: https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: JRuby 9.4.15.0 Released — JRuby.org | daily.dev og:description: JRuby 9.4.15.0 has been released, targeting Ruby 3.4 compatibility. This release resolves 38 issues and pull requests including security fixes (CVE-2025-58767... og:url: https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f og:image: https://api.daily.dev/og/posts/jNc7sRd4f.png og:image:alt: JRuby 9.4.15.0 Released — JRuby.org 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. # JRuby 9.4.15.0 Released — JRuby.org **[RUBYLAND](https://daily.dev/sources/rubyla)** · 3 min read · 1 upvotes · 0 comments ## Summary JRuby 9.4.15.0 has been released, targeting Ruby 3.4 compatibility. This release resolves 38 issues and pull requests including security fixes (CVE-2025-58767 via rexml update, BouncyCastle vulnerability, CVE-2026-41316 via erb bump), official JDK 25 support, Windows-specific bug fixes for IO.popen and file locking, ArgumentError fixes, float hex parsing corrections, and various dependency updates. Notably, JRuby 9.4 enters end-of-life with this release, meaning future 9.4.x releases will only be provided for commercial users requiring long-term support. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [JRuby 10.0.3.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-0-3-0-released-jruby-org-x46xarc24) · RUBYLAND · 0 upvotes · 0 comments - [JRuby 10.0.5.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-0-5-0-released-jruby-org-lgwabdlx7) · RUBYLAND · 0 upvotes · 0 comments - [JRuby 10.0.6.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-0-6-0-released-jruby-org-ud23lstzd) · RUBYLAND · 0 upvotes · 0 comments - [JRuby 10.1.1.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-1-1-0-released-jruby-org-fzuzn8l1k) · RUBYLAND · 0 upvotes · 0 comments - [JRuby 10.0.4.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-0-4-0-released-jruby-org-d6eeoi1kl) · RUBYLAND · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#java](https://daily.dev/tags/java), [#ruby](https://daily.dev/tags/ruby), [#jvm](https://daily.dev/tags/jvm) [View this post on daily.dev](https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f) ```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":"JRuby 9.4.15.0 Released — JRuby.org","url":"https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f"},"datePublished":"2026-06-08T18:23:16.171Z","dateModified":"2026-06-08T18:37:38.654Z","description":"JRuby 9.4.15.0 has been released, targeting Ruby 3.4 compatibility. This release resolves 38 issues and pull requests including security fixes (CVE-2025-58767...","image":"https://media.daily.dev/image/upload/s--CxzD6vbw--/f_auto/v1722860399/public/Placeholder%2005","thumbnailUrl":"https://media.daily.dev/image/upload/s--CxzD6vbw--/f_auto/v1722860399/public/Placeholder%2005","isAccessibleForFree":true,"articleSection":"RUBYLAND","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":"RUBYLAND","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/rubyla","url":"https://daily.dev/sources/rubyla"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,java,ruby,jvm","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"RUBYLAND","item":"https://daily.dev/sources/rubyla"},{"@type":"ListItem","position":3,"name":"JRuby 9.4.15.0 Released — JRuby.org"}]} ```