--- title: Ruby 4.0.1 Released | daily.dev description: Ruby 4.0.1 has been released with bugfixes including a fix for spurious wakeup from Kernel#sleep when subprocess exits in another thread. The release follows a... canonical: https://daily.dev/posts/vr2kn7udz twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Ruby 4.0.1 Released | daily.dev og:description: Ruby 4.0.1 has been released with bugfixes including a fix for spurious wakeup from Kernel#sleep when subprocess exits in another thread. The release follows a... og:url: https://daily.dev/posts/vr2kn7udz og:image: https://api.daily.dev/og/posts/vR2Kn7uDZ.png og:image:alt: Post cover image 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. # Ruby 4.0.1 Released **[Ruby Friends](https://daily.dev/sources/rubyfriends)** · [@pboling](https://daily.dev/pboling) · 0 upvotes · 0 comments ## Summary Ruby 4.0.1 has been released with bugfixes including a fix for spurious wakeup from Kernel#sleep when subprocess exits in another thread. The release follows a bi-monthly schedule for stable versions, with 4.0.2 planned for March. Download links are available in tar.gz, tar.xz, and zip formats with checksums. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Governing Security in the Age of Infinite Signal](https://daily.dev/posts/governing-security-in-the-age-of-infinite-signal-qhihbir44) · Snyk · 0 upvotes · 0 comments - [No one has a good plan for how AI companies should work with the government](https://daily.dev/posts/no-one-has-a-good-plan-for-how-ai-companies-should-work-with-the-government-nkajqoze1) · TechCrunch · 0 upvotes · 1 comments --- Tags: [#ruby](https://daily.dev/tags/ruby) [View this post on daily.dev](https://daily.dev/posts/vr2kn7udz) ```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":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/vr2kn7udz","headline":"Ruby 4.0.1 Released","text":"Shared: Ruby 4.0.1 Released","url":"https://daily.dev/posts/vr2kn7udz","datePublished":"2026-01-14T00:11:38.790Z","dateModified":"2026-01-14T00:11:38.792Z","author":{"@type":"Person","name":"Peter Boling","url":"https://daily.dev/pboling","image":"https://avatars.githubusercontent.com/u/19505?v=4","description":"Architect-level engineer w/ team lead & hands-on mgmt xp in deep backend systems for 25yrs","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":880}},"image":"https://media.daily.dev/image/upload/s--HRgLpUt6--/f_auto/v1722860399/public/Placeholder%2003","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/Yy5NFIIOM"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/rubyfriends","name":"Ruby Friends"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Ruby Friends","item":"https://daily.dev/squads/rubyfriends"},{"@type":"ListItem","position":3,"name":"Ruby 4.0.1 Released"}]} ```