Audacity ships 4.0.1 to paper over the rough edges of its massive Qt6 rewrite
Three weeks after rebuilding the app from the ground up on Qt6, the Audacity team releases a patch aimed at the worst crashes, corruption, and compatibility gaps.
Audacity is the free, open-source audio editor most people have never actually heard of. It is probably installed on more machines than your favorite paid digital audio workstation, quietly doing the work. As of September 30, it is a little more stable than it was last month.
The team released Audacity 4.0.1 just over three weeks after 4.0, the first major version in more than a decade to rebuild the entire interface on Qt6. In other words, the big rewrite happened, the dust settled, and now the team is picking up the broken pieces off the floor.
The patch went to GitHub via community member saintmatthieu at commit d82386c, tagged as the current release. In semantic-versioning terms, that final "1" means bug fixes and refinements rather than anything shiny. Not that there is nothing new.
Despite the patch label, 4.0.1 still tucks in a handful of things users will actually notice. You can now export individual tracks or labeled regions to their own files, a long time coming. A portable Windows build lets you run the program from a USB stick without installing anything. The team also restored missing Audacity 3 keyboard shortcuts, sparing returning users the pain of relearning keybindings.
There are smaller touches too. A clickable carousel now lives on the Welcome screen, there is an "Open in file manager" option on the Cloud tab, and macOS gets a new Liquid Glass icon. The carousel was built by @danielmolinas and the icon by @JoshBashed, both riding along with Apple's current design language.
Four accessibility fixes sneak in as well. The timeline and ruler are now reachable by keyboard, the Effects panel focuses the Add effect button on open, and toast notifications are picked up by screen readers. These are the kind of changes you rarely see advertised, but they matter a great deal to anyone relying on assistive technology.
The meat of the patch is the unglamorous stuff that keeps your work from vanishing. Most important is a fix for project corruption after a failed save, which is exactly the scenario that makes you want to throw your laptop out a window. Others cover the migration path from .aup3 files, non-ASCII filenames (a real problem for anyone outside the English-speaking world), and a crash that surfaced specifically when the interface was set to German.
Keep in mind that this is a platform-specific pile-on. Windows Smart App Control now lets Audacity launch, Linux AppImage installs work across several distros, and VST3 plugin parameters finally persist. Real-time effect windows stay open through edits and undo, and the playhead stops drifting above 120 BPM.
Where to get it
Audacity 4.0.1 is available as a free download for Linux, Windows, and macOS. Head here to download the release from GitHub.
