--- title: JRuby 10.1.1.0 Released — JRuby.org | daily.dev description: JRuby 10.1.1.0 has been released, targeting Ruby 4.0 compatibility. Notable changes include performance improvements via FastDoubleParser for string-to-double... canonical: https://daily.dev/posts/jruby-10-1-1-0-released-jruby-org-fzuzn8l1k twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: JRuby 10.1.1.0 Released — JRuby.org | daily.dev og:description: JRuby 10.1.1.0 has been released, targeting Ruby 4.0 compatibility. Notable changes include performance improvements via FastDoubleParser for string-to-double... og:url: https://daily.dev/posts/jruby-10-1-1-0-released-jruby-org-fzuzn8l1k og:image: https://api.daily.dev/og/posts/FzUZN8l1K.png og:image:alt: JRuby 10.1.1.0 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 10.1.1.0 Released — JRuby.org **[RUBYLAND](https://daily.dev/sources/rubyla)** · 4 min read · 0 upvotes · 0 comments ## Summary JRuby 10.1.1.0 has been released, targeting Ruby 4.0 compatibility. Notable changes include performance improvements via FastDoubleParser for string-to-double parsing, configurable fixnum packing, security fixes in jruby-openssl (updated to 0.16.2 with BouncyCastle CVE fixes) and erb (updated to address CVE-2026-41316), OpenBSD support in the native library backend, optimized Java interface implementation with blocks, and deprecation of jruby-complete and jruby-core Maven artifacts in favor of jruby and jruby-base. A total of 57 issues and PRs were resolved. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [JRuby 10.0.6.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-0-6-0-released-jruby-org-ud23lstzd) · RUBYLAND · 0 upvotes · 0 comments - [JRuby 10.1.0.0 Released — JRuby.org](https://daily.dev/posts/jruby-10-1-0-0-released-jruby-org-9oyuhojay) · 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 9.4.15.0 Released — JRuby.org](https://daily.dev/posts/jruby-9-4-15-0-released-jruby-org-jnc7srd4f) · RUBYLAND · 1 upvotes · 0 comments - [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 --- Tags: [#security](https://daily.dev/tags/security), [#performance](https://daily.dev/tags/performance), [#java](https://daily.dev/tags/java), [#ruby](https://daily.dev/tags/ruby) [View this post on daily.dev](https://daily.dev/posts/jruby-10-1-1-0-released-jruby-org-fzuzn8l1k) ```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 10.1.1.0 Released — JRuby.org","url":"https://daily.dev/posts/jruby-10-1-1-0-released-jruby-org-fzuzn8l1k","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/jruby-10-1-1-0-released-jruby-org-fzuzn8l1k"},"datePublished":"2026-07-22T18:22:38.106Z","dateModified":"2026-07-22T18:22:57.681Z","description":"JRuby 10.1.1.0 has been released, targeting Ruby 4.0 compatibility. 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