--- title: OpenSSH 10.4 released | daily.dev description: OpenSSH 10.4 has been released with security and bug fixes plus notable new features. The release adds experimental support for a composite post-quantum... canonical: https://daily.dev/posts/openssh-10-4-released-hvdxib33z twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: OpenSSH 10.4 released | daily.dev og:description: OpenSSH 10.4 has been released with security and bug fixes plus notable new features. The release adds experimental support for a composite post-quantum... og:url: https://daily.dev/posts/openssh-10-4-released-hvdxib33z og:image: https://api.daily.dev/og/posts/HVdxiB33z.png og:image:alt: OpenSSH 10.4 released 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. # OpenSSH 10.4 released **[LWN.net](https://daily.dev/sources/lwn)** · 1 min read · 0 upvotes · 0 comments ## Summary OpenSSH 10.4 has been released with security and bug fixes plus notable new features. The release adds experimental support for a composite post-quantum signature scheme combining ML-DSA 44 and Ed25519, based on an IETF draft. Additionally, when compiled with sandbox support, OpenSSH will now fail hard on Linux systems that lack SECCOMP or NO_NEW_PRIVS enabled, rather than logging an error and continuing as before. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [OpenSSH: Release Notes](https://daily.dev/posts/openssh-release-notes-iatm6rseu) · Lobsters · 2 upvotes · 0 comments - [OpenSSH 10.3 released](https://daily.dev/posts/openssh-10-3-released-krgsb6m3v) · LWN.net · 0 upvotes · 0 comments - [GitHub Rolls Out Post-Quantum SSH Security to Protect Code from Future Threats](https://daily.dev/posts/github-rolls-out-post-quantum-ssh-security-to-protect-code-from-future-threats-g7qxgwt44) · InfoQ · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#quantum-computing](https://daily.dev/tags/quantum-computing) [View this post on daily.dev](https://daily.dev/posts/openssh-10-4-released-hvdxib33z) ```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":"OpenSSH 10.4 released","url":"https://daily.dev/posts/openssh-10-4-released-hvdxib33z","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/openssh-10-4-released-hvdxib33z"},"datePublished":"2026-07-09T07:49:55.329Z","dateModified":"2026-07-09T07:51:23.569Z","description":"OpenSSH 10.4 has been released with security and bug fixes plus notable new features. The release adds experimental support for a composite post-quantum...","image":"https://media.daily.dev/image/upload/s--0_ODbtD2--/f_auto/v1722860399/public/Placeholder%2008","thumbnailUrl":"https://media.daily.dev/image/upload/s--0_ODbtD2--/f_auto/v1722860399/public/Placeholder%2008","isAccessibleForFree":true,"articleSection":"LWN.net","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":"LWN.net","logo":"https://media.daily.dev/image/upload/s--4jjE7GIK--/f_auto,q_auto/v1774960833/logos/lwn?_a=BAMAMiWQ0","url":"https://daily.dev/sources/lwn"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/openssh-10-4-released-hvdxib33z","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,quantum-computing","timeRequired":"PT1M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"LWN.net","item":"https://daily.dev/sources/lwn"},{"@type":"ListItem","position":3,"name":"OpenSSH 10.4 released"}]} ```