--- title: Audacity 4.0 released | daily.dev description: Audacity 4.0, the audio editing application, has been released with a rewritten Qt-based interface, savable UI layouts called Workspaces, improved audio clip... canonical: https://daily.dev/posts/audacity-4-0-released-xxa4jizn9 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Audacity 4.0 released | daily.dev og:description: Audacity 4.0, the audio editing application, has been released with a rewritten Qt-based interface, savable UI layouts called Workspaces, improved audio clip... og:url: https://daily.dev/posts/audacity-4-0-released-xxa4jizn9 og:image: https://api.daily.dev/og/posts/XXa4Jizn9.png og:image:alt: Audacity 4.0 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. # Audacity 4.0 released **[LWN.net](https://daily.dev/sources/lwn)** · 1 min read · 0 upvotes · 0 comments ## Summary Audacity 4.0, the audio editing application, has been released with a rewritten Qt-based interface, savable UI layouts called Workspaces, improved audio clip handling, and a new .aup4 project format. The release is not fully feature-compatible with the Audacity 3.x series, with a list of missing features detailed in the compatibility notes. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What changed in Audacity 4.0 compared to Audacity 3.x? Audacity 4.0 introduces a rewritten interface built on Qt, the ability to save user-interface layouts as Workspaces, improvements in working with audio clips, and a new .aup4 project file format. It is not fully feature-compatible with the Audacity 3.x series, so some features present in 3.x are missing in this release. _Anyone maintaining audio workflows on Audacity can track compatibility changes like these via daily.dev._ ### Is Audacity 4.0 backward compatible with Audacity 3.x projects and features? No, Audacity 4.0 is not fully feature-compatible with the Audacity 3.x series. It introduces a new .aup4 project format, and a list of missing features compared to 3.x is documented in the release's compatibility notes. _Developers weighing an upgrade path off older audio tooling can follow changes like this on daily.dev._ ## Similar posts on daily.dev - [Audacity 4.0 beta lets you test its new \(nicer\) Qt interface](https://daily.dev/posts/audacity-4-0-beta-lets-you-test-its-new-nicer-qt-interface-ilpveqm9f) · omg\! ubuntu\! · 2 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#qt](https://daily.dev/tags/qt) [View this post on daily.dev](https://daily.dev/posts/audacity-4-0-released-xxa4jizn9) ```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":"Audacity 4.0 released","url":"https://daily.dev/posts/audacity-4-0-released-xxa4jizn9","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/audacity-4-0-released-xxa4jizn9"},"datePublished":"2026-09-03T14:00:35.277Z","dateModified":"2026-09-03T19:19:56.580Z","description":"Audacity 4.0, the audio editing application, has been released with a rewritten Qt-based interface, savable UI layouts called Workspaces, improved audio clip...","image":"https://media.daily.dev/image/upload/s--58gMhC4P--/f_auto/v1722860399/public/Placeholder%2012","thumbnailUrl":"https://media.daily.dev/image/upload/s--58gMhC4P--/f_auto/v1722860399/public/Placeholder%2012","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/audacity-4-0-released-xxa4jizn9","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"open-source,qt","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":"Audacity 4.0 released"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/audacity-4-0-released-xxa4jizn9#faq","mainEntity":[{"@type":"Question","name":"What changed in Audacity 4.0 compared to Audacity 3.x?","acceptedAnswer":{"@type":"Answer","text":"Audacity 4.0 introduces a rewritten interface built on Qt, the ability to save user-interface layouts as Workspaces, improvements in working with audio clips, and a new .aup4 project file format. 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