Audacity Changelog

What's new in Audacity 3.5.0

Apr 23, 2024

MAJOR CHANGES:
Cloud project saving
We've introduced a new cloud-saving feature that allows you to save your Audacity projects to audio.com. This allows you to work from any device, share & collaborate with others and restore previous versions if something went wrong.
Automatic tempo detection
Audacity can now automatically detect the tempo of imported loops, and adjust them to be in tempo.
Tempo detection is done via both audio analysis and metadata checking. If you want to prepare your loop for automatic tempo detection without relying on audio analysis, both acidizer tempo tags or simply writing "123 bpm" anywhere into the filename work.
Automatic tempo detection can be turned off via Preferences -> Import/Export.
Pitch shifting
You now can non-destructively change the pitch of a clip by holding Alt and pressing the Up and Down arrow keys. Alternatively, you can click on the overflow menu (...) and select "Pitch and speed...". When changing the pitch this way, an arrow in the UI indicates how much you've shifted it.
OTHER CHANGES:
Additions:
Added an option to skip plugin scanning to Preferences -> Effects.
Added an overflow menu, as well as speed and pitch indicators to clips.
Added subtitle formats for labels. Export to WebVTT and SubRip and import of SubRip files is now supported. (Thanks, Pokechu22 and Larry Bordowitz!)
Changes:
Reworked the plugin manager.
Improved accessibility. (Thanks, David Bailes!)
When zooming in vertically (Ctrl+scroll on the vertical scale), the zeroline now remains centered. Moving the vertical zoom off-center still is possible via Shift+scroll on the vertical scale.
Changed the look of the selection adjust cursors (previously pointing fingers on Windows and macOS, now look like >| everywhere).
Changed the timeline options button from a green triangle to a settings gear. From it, you can switch between Beats & Measures or hh:mm:ss timeline rulers, set various preferences regarding to looping, as well as playhead behaviors: "Scroll view to playhead" (previously: "Update display while playing") and "Continuous scrolling" (previously: Pinned Play Head).
Improved BSD support. (Thanks, Brad Smith!)
macOS: Changed the Audacity.app icon on macOS to fit new design guidelines.
Reordered some menus.
Moved OK/Cancel buttons of effects to the bottom.
Removals:
There have been a number of removals of niche features to simplify the app. This should make the app a bit less overwhelming to use, and also will speed up future development as fewer things need to be considered.
Removed the read-only mouse preferences page.
Removed Printing options.
Removed Screenshot tool. To make a screenshot, use Win+Shift+S (Windows) or Cmd+Shift+4 (Mac) instead.
Removed Karaoke view.
Removed the "solo=none" preference.
Removed timeline tooltips preference.
Removed "dragging selection edges" preference.
Removed some warning dialogs and associated preferences.
Removed "scrolling left of zero" preference.
Replaced "Advanced Vertical Zooming" with new always-on behavior.
Removed some vertical zoom presets.
Removed EQ XML to TXT converter, which was needed for the Audacity 2.3 -> 2.4 transition. It is now a plugin instead, downloadable at https://plugins.audacityteam.org/additional-resources/eq-curves/eq-xml-to-txt-converter.
Removed the "Vocal reduction and isolation" effect. As a replacement on Windows and Linux, the Intel OpenVINO plugins work better and on a wider array of content, including mono tracks. The old effect still can be downloaded from https://plugins.audacityteam.org/nyquist-plugins/effect-plugins/filters-and-eq#vocal-reduction-and-isolation
Bugfixes:
Fixed a number of dialogs that were able to grow too large to fit on the screen.
#2133 Fixed the playback cursor sometimes desynchronizing with actual playback. (Thanks, David Bailes!)
#3723 #5615 Fixed the GetInfo scripting command.
#5283 Fixed "Reset configuration" command breaking modules preference page.
#5389 Fixed stereo tracks randomly splitting into mono.
#5500 The Export Audio -> (external program) option remembers the command line argument again.
#5670 #3903 Fixed the Compressor effect sometimes corrupting audio. (Thanks, David Bailes!)
#5580 #4952 Fixed Timer Record sometimes failing to export. (Thanks, David Bailes!)
#5681 Fixed incorrect level measurements for mono tracks in Noise Gate effect. (Thanks, Steve Daulton!)
#5750 When exporting multiple files, the mono/stereo setting is now honored properly.
#5848 Fixed some effects failing when language is set to German, Korean, Dutch, Slovenian, or Turkish.
#5868 #1548 Fixed 8 and 9 inputs not working on keyboard inputs which have AltGr+8/9 mean [ and ]. (Thanks, David Bailes!)
#5858 Fixed Audacity crashing when making a stereo track using keyboard. (Thanks, Joe Souza!)
#5976 Fixed the "Set default" button not working in the metadata editor. (Thanks, dg-no-9!)
#5977 Linux: Fixed a memory leak in Wayland by explicitly running on X11. (Thanks, Takahashi, Naoki!)

New in Audacity 3.5.0 Beta 3 (Apr 1, 2024)

New in Audacity 3.5.0 Beta 2 (Mar 9, 2024)

New in Audacity 3.5.0 Beta (Mar 6, 2024)

Audacity 3.5 adds cloud saving, beat detection, pitch shifting and more.
MAJOR CHANGES:
Cloud project saving:
We've introduced a new cloud-saving feature that allows you to save your Audacity projects to audio.com. This allows you to work from any device, share & collaborate with others and restore previous versions if something went wrong.
Automatic tempo detection
Audacity can now automatically detect the tempo of imported loops, and adjust them to be in tempo.
Tempo detection is done via both audio analysis and metadata checking. If you want to prepare your loop for automatic tempo detection without relying on audio analysis, both acidizer tempo tags or simply writing "123 bpm" anywhere into the filename work.
Automatic tempo detection can be turned off via Preferences -> Import/Export.
Pitch shifting
You now can non-destructively change the pitch of a clip by holding Alt and pressing the Up and Down arrow keys. Alternatively, you can click on the overflow menu (...) and select "Pitch and speed...". When changing the pitch this way, an arrow in the UI indicates how much you've shifted it.
CHANGES:
Added an option to skip plugin scanning to Preferences -> Effects.
Improved accessibility. (Thanks, David Bailes!)
When zooming in vertically (Ctrl+scroll on the vertical scale), the zeroline now remains centered. Moving the vertical zoom off-center still is possible via Shift+scroll on the vertical scale.
Changed the look of the selection adjust cursors (previously pointing fingers on Windows and macOS, now look like >| everywhere).
Changed the timeline options button from a green triangle to a settings gear. From it, you can switch between Beats & Measures or hh:mm:ss timeline rulers, set various preferences regarding to looping, as well as playhead behaviors: "Scroll view to playhead" (previously: "Update display while playing") and "Continuous scrolling" (previously: Pinned Play Head).
Improved BSD support. (Thanks, Brad Smith!)
macOS: Changed the Audacity.app icon on macOS to fit new design guidelines.
Added an overflow menu, as well as speed and pitch indicators to clips.
Reordered some menus.
REMOVALS:
There have been a number of removals of niche features to simplify the app. This should make the app a bit less overwhelming to use, and also will speed up future development as fewer things need to be considered.
Removed the read-only mouse preferences page.
Removed Printing options.
Removed Screenshot tool. To make a screenshot, use Win+Shift+S (Windows) or Cmd+Shift+4 (Mac) instead.
Removed Karaoke view.
Removed the "solo=none" preference.
Removed timeline tooltips preference.
Removed "dragging selection edges" preference.
Removed some warning dialogs and associated preferences.
Removed "scrolling left of zero" preference.
Replaced "Advanced Vertical Zooming" with new always-on behavior.
Removed some vertical zoom presets.
Removed EQ XML to TXT converter, which was needed for the Audacity 2.3 -> 2.4 transition. It is now a plugin instead, downloadable at https://plugins.audacityteam.org/additional-resources/eq-curves/eq-xml-to-txt-converter.
BUG FIXES:
Fixed a number of dialogs that were able to grow too large to fit on the screen.
#2133 Fixed the playback cursor sometimes desynchronizing with actual playback. (Thanks, David Bailes!)
#3723 #5615 Fixed the GetInfo scripting command.
#5283 Fixed "Reset configuration" command breaking modules preference page.
#5389 Fixed stereo tracks randomly splitting into mono.
#5500 The Export Audio -> (external program) option remembers the command line argument again.
#5670 #3903 Fixed the Compressor effect sometimes corrupting audio. (Thanks, David Bailes!)
#5580 #4952 Fixed Timer Record sometimes failing to export. (Thanks, David Bailes!)
#5681 Fixed incorrect level measurements for mono tracks in Noise Gate effect. (Thanks, Steve Daulton!)
#5750 When exporting multiple files, the mono/stereo setting is now honored properly.
#5848 Fixed some effects failing when language is set to German, Korean, Dutch, Slovenian, or Turkish.
#5868 #1548 Fixed 8 and 9 inputs not working on keyboard inputs which have AltGr+8/9 mean [ and ]. (Thanks, David Bailes!)
#5858 Fixed Audacity crashing when making a stereo track using keyboard. (Thanks, Joe Souza!)
#5976 Fixed the "Set default" button not working in the metadata editor. (Thanks, dg-no-9!)
#5977 Linux: Fixed a memory leak in Wayland by explicitly running on X11. (Thanks, Takahashi, Naoki!)

New in Audacity 3.4.2 (Nov 18, 2023)

New in Audacity 3.4.1 (Nov 10, 2023)

New in Audacity 3.4.0 (Nov 4, 2023)

MAJOR CHANGES:
Music workflows:
Audacity now features several music related features, such as switching between hh:mm:ss time and Beats & Measures, and time-stretching clips to align them to a song's tempo.
Time stretching
Hold Alt (macOS: Option) while hovering over the top third of a clip edge to stretch it.
New exporter
Audacity now features a new export window with easier access to options such as sample rate and custom mapping (for 5.1 or 7.1 audio). Additionally, the "Browse" button uses the native file browser now!
OTHER CHANGES:
For MP3, Audacity now always uses Joint Stereo mode, which always delivers the best possible quality.
#4720 Simplified pasting logic.
Simplified stereo tracks. Left and right channels now always have synchronized clip starts and ends, and the same sample rate in both channels.
#5014 Added cursors trimming and stretching left and right, and changed the I-beam cursor to be less similar to either.
#4448 When importing audio, the project sample rate no longer changes.
#5204 The spectrogram colors are now perceptually uniform, and the colormap has gotten a name: Roseus. It also can be used for dataviz outside of Audacity, see https://github.com/dofuuz/roseus for more info! (Thanks, Myungchul Keum)
New defaults: The Time Signature toolbar now gets shown, the solo button is set to multi-track mode, time tracks have a wider starting range.
#5291 Unsquished the Audacity logo found in some places of the app.
#2330 Clicking on the border of two clips no longer merges them.
#2530 Overdubbing on Windows fails with WASAPI with default Recording device.
#443 Built-in Opus support.
Libraries
lib-time-and-pitch implements a time stretching algorithm originating in Staffpad.
Audacity now uses Conan 2.
Continued extracting code into libraries and modules, especially in the context of importing and exporting.
Bug fixes
#3778 --nogap metadata no longer is ignored.
#4410 fixed a crash with LV2 plugins (thanks jfroyall!).
#2471 #4798 fixed some crashes related to macros.
#4769 fixed a crash when pasting in certain configurations.
#4677 Accessibility: GUI can be disabled again for VST2 plugins (thanks, David Bailes!).
#4988 Accessibility: Restored window control IDs, improving NVDA compatibility (thanks again, David Bailes!).
#4872 fixed a crash on launch on OSX 10.9 (thanks, René Bertin!).

New in Audacity 3.4.0 Beta 1 (Oct 23, 2023)

MAJOR CHANGES:
Music workflows
Audacity now features several music related features, such as switching between hh:mm:ss time and Beats & Measures, and time-stretching clips to align them to a song's tempo.
Time stretching
Hold Alt (macOS: Option) while hovering over the top third of a clip edge to stretch it.
New exporter
Audacity now features a new export window with easier access to options such as sample rate and custom mapping (for 5.1 or 7.1 audio). Additionally, the "Browse" button uses the native file browser now!
OTHER CHANGES:
For MP3, Audacity now always uses Joint Stereo mode, which always delivers the best possible quality.
#4720 Simplified pasting logic.
Simplified stereo tracks. Left and right channels now always have synchronized clip starts and ends, and the same sample rate in both channels.
#5014 Added cursors trimming and stretching left and right, and changed the I-beam cursor to be less similar to either.
#4448 When importing audio, the project sample rate no longer changes.
#5204 The spectrogram colors are now perceptually uniform, and the colormap has gotten a name: Roseus. It also can be used for dataviz outside of Audacity, see https://github.com/dofuuz/roseus for more info! (Thanks, Myungchul Keum)
New defaults: The Time Signature toolbar now gets shown, the solo button is set to multi-track mode, time tracks have a wider starting range.
#5291 Unsquished the Audacity logo found in some places of the app.
#2330 Clicking on the border of two clips no longer merges them.
#2530 Overdubbing on Windows fails with WASAPI with default Recording device.
#443 Built-in Opus support.
LIBRARIES:
lib-time-and-pitch implements a time stretching algorithm originating in Staffpad.
Audacity now uses Conan 2.
Continued extracting code into libraries and modules, especially in the context of importing and exporting.
BUG FIXES:
#3778 --nogap metadata no longer is ignored.
#4410 fixed a crash with LV2 plugins (thanks jfroyall!).
#2471 #4798 fixed some crashes related to macros.
#4769 fixed a crash when pasting in certain configurations.
#4677 Accessibility: GUI can be disabled again for VST2 plugins (thanks, David Bailes!).
#4988 Accessibility: Restored window control IDs, improving NVDA compatibility (thanks again, David Bailes!).
#4872 fixed a crash on launch on OSX 10.9 (thanks, René Bertin!).

New in Audacity 3.3.3 (Jun 8, 2023)

New in Audacity 3.3.2 (May 5, 2023)

New in Audacity 3.3.1 (Apr 29, 2023)

New in Audacity 3.3.0 (Apr 26, 2023)

New in Audacity 3.3.0 Beta 1 (Apr 18, 2023)

New in Audacity 3.2.5 (Mar 2, 2023)

New in Audacity 3.2.4 (Jan 30, 2023)

New in Audacity 3.2.3 (Jan 2, 2023)

New in Audacity 3.2.2 (Dec 7, 2022)

New in Audacity 3.2.1 (Oct 6, 2022)

New in Audacity 3.2.0 (Sep 23, 2022)

Prominent changes:
Added a new Effects button to the tracks menu, allowing you to place realtime effects.
Further information can be found can be found on https://support.audacityteam.org/audio-editing/using-realtime-effects
Merged the mixer bar with the meter bars.
Added a new Audio Setup button, replacing the Device Toolbar by default. The device toolbar can be re-added via the View > Toolbars menu.
The Effects menu has gotten a new sorting. Other sorting and grouping options can be found in the Effects preferences.
Updated the icons.
Added a quick audio sharing feature.
More info can be found on https://support.audacityteam.org/basics/sharing-audio-online
Plugin changes:
You can find plugins on https://plugins.audacityteam.org
VST3 effects are now supported.
The following plugin formats are now realtime capable: VST3, LV2, LADSPA, Audio Units.
Plugins now automatically get scanned, tested and enabled when Audacity starts.
System changes:
Apple Silicon (arm64) is now supported on macOS
Note: When using an arm64 Audacity, you must use arm64 versions of FFMPEG and plugins. Plugins for x86-64 (Intel macs) will not load.
For the time being, Audacity will continue to download x86-64 versions by default to avoid these incompatibilities,
but you can download an arm64 version from Github releases: https://github.com/audacity/audacity/releases
FFMPEG 5.0 (avformat 59) is now supported, in addition to avformat 55, 57 and 58
Added support for Wavpack
On Linux, Audacity can now be compiled without JACK present.
Audacity now uses XDG directories on Linux.
Note: If you are upgrading from a previous version, Audacity will keep using the ~/.audacity-data and ~/.audacity folders until you delete them.
Switched from mad to mpg123 as MP3 importer
License update:
Audacity binaries are now licensed under the GNU General Public License, Version 3.
Most code files remain GPLv2-or-later, but VST3 support required this license update.
More information can be found in the announcement post: #2142
Removals:
Removed the Zoom Tool. You can use the zoom buttons or Ctrl+Scroll (macOS: Cmd+Scroll) to zoom instead.
The Audacity Manual HTML pages are no longer included in the installation.
If you require offline access of the manual, you can download it here: https://github.com/audacity/audacity-manual/releases
You also can download PDFs of https://support.audacityteam.org straight from its sidebar (or the three-dot button on mobile devices).
Fixed bugs:
#3079 Fixed Audacity sometimes not being able to import MP3 files (or reporting Huffman Data Overruns)
#2590 Fixed rare data loss bug when placing labels during recording
#2272 Fixed clip titles being able to disappear off-screen when editing them
#2162 Fixed Punch and Roll not paying tracks in sync
#1889 Fixed clip titles changing name when applying some effects
#1624 During batch processing, Audacity will no longer stop to ask for a sample rate when an unsupported one is chosen, but choose the nearest supported one instead.
#2265 Fixed mod-script-pipe not being installed on Linux
#3571 Fixed GTK packaging in Appimages. This fixes various issues with icons, dropdowns and similar things not appearing properly.
#3634 Improved M4A/AAC support. Previously the target bitrate was not honored at all,
now it can be set between 98 and 160 kbit/s (mono) or 196 and 320 kbit/s (stereo). The UI does not yet reflect these limits.

New in Audacity 3.2.0 Beta (Sep 14, 2022)

PROMINENT CHANGES:
Added a new Effects button to the tracks menu, allowing you to place realtime effects. Further information can be found on https://support.audacityteam.org/audio-editing/using-realtime-effects
Merged the mixer bar with the meter bars.
Added a new Audio Setup button, replacing the Device Toolbar by default. The device toolbar can be re-added via the View > Toolbars menu.
The Effects menu has gotten a new sorting. Other sorting and grouping options can be found in the Effects preferences.
Updated the icons.
Added a quick audio sharing feature.
More info can be found on https://support.audacityteam.org/basics/sharing-audio-online
PLUGIN CHANGES:
You can find plugins on https://plugins.audacityteam.org
VST3 effects are now supported.
The following plugin formats are now realtime capable: VST3, LV2, LADSPA, Audio Units.
Plugins now automatically get scanned, tested and enabled when Audacity starts.
System changes
Apple Silicon (arm64) and Universal Binaries are now supported on macOS
FFMPEG 5.0 (avformat 59) is now supported, in addition to avformat 55, 57 and 58
Added support for Wavpack
On Linux, Audacity can now be compiled without JACK present.
Audacity now uses XDG directories on Linux.
Note: If you are upgrading from a previous version, Audacity will keep using the ~/.audacity-data and ~/.audacity folders until you delete them.
Switched from mad to mpg123 as MP3 importer
LICENSE UPDATE:
Audacity binaries are now licensed under the GNU General Public License, Version 3.
Most code files remain GPLv2-or-later, but VST3 support required this license update.
More information can be found in the announcement post: #2142
Other changes
Removed the Zoom Tool. You can use the zoom buttons or Ctrl+Scroll (macOS: Cmd+Scroll) to zoom instead.
FIXED BUGS:
#3079 Fixed Audacity sometimes not being able to import MP3 files (or reporting Huffman Data Overruns)
#2590 Fixed rare data loss bug when placing labels during recording
#2272 Fixed clip titles being able to disappear off-screen when editing them
#2162 Fixed Punch and Roll not paying tracks in sync
#1889 Fixed clip titles changing name when applying some effects
#1624 During batch processing, Audacity will no longer stop to ask for a sample rate when an unsupported one is chosen, but choose the nearest supported one instead.
#2265 Fixed mod-script-pipe not being installed on Linux

New in Audacity 3.2.0 Alpha 1 (Aug 30, 2022)

PROMINENT CHANGES:
Added a new Effects button to the tracks menu, allowing you to place realtime effects. Further information can be found can be found on https://support.audacityteam.org/audio-editing/using-realtime-effects
Merged the mixer bar with the meter bars.
Added a new Audio Setup button, replacing the Device Toolbar by default. The device toolbar can be re-added via the View > Toolbars menu.
The Effects menu has gotten a new sorting. Other sorting and grouping options can be found in the Effects preferences.
Updated the icons.
PLUGIN CHANGES:
You can find plugins on https://plugins.audacityteam.org
VST3 effects are now supported.
The following plugin formats are now realtime capable: VST3, LV2, LADSPA, Audio Units.
Plugins now automatically get scanned, tested and enabled when Audacity starts.
SYSTEM CHANGES:
Apple Silicon (arm64) and Universal Binaries are now supported on macOS
FFMPEG 5.0 (avformat 59) is now supported, in addition to avformat 55, 57 and 58
Added support for Wavpack
On Linux, Audacity can now be compiled without JACK present.
Audacity now uses XDG directories on Linux.
Note: If you are upgrading from a previous version, Audacity will keep using the ~/.audacity-data and ~/.audacity folders until you delete them.
Switched from mad to mpg123 as MP3 importer
LICENSE UPDATES:
Audacity binaries are now licensed under the GNU General Public License, Version 3.
Most code files remain GPLv2-or-later, but VST3 support required this license update.
More information can be found in the announcement post: #2142
OTHER CHANGES:
Removed the Zoom Tool. You can use the zoom buttons or Ctrl+Scroll (macOS: Cmd+Scroll) to zoom instead.
FIXED BUGS:
#3079 Fixed Audacity sometimes not being able to import MP3 files (or reporting Huffman Data Overruns)
#2590 Fixed rare data loss bug when placing labels during recording
#2272 Fixed clip titles being able to disappear off-screen when editing them
#2162 Fixed Punch and Roll not paying tracks in sync
#1889 Fixed clip titles changing name when applying some effects
#1624 During batch processing, Audacity will no longer stop to ask for a sample rate when an unsupported one is chosen, but choose the nearest supported one instead.
#2265 Fixed mod-script-pipe not being installed on Linux

New in Audacity 3.1.3 (Dec 23, 2021)

New in Audacity 3.1.3 Beta 1 (Nov 24, 2021)

New in Audacity 3.1.2 (Nov 16, 2021)

New in Audacity 3.1.1 (Nov 11, 2021)

New in Audacity 3.1.0 (Oct 28, 2021)

New in Audacity 3.1.0 Beta 1 (Oct 15, 2021)

New in Audacity 3.0.5 (Sep 30, 2021)

New in Audacity 3.0.4 (Sep 6, 2021)

New in Audacity 2.3.3 (Nov 22, 2019)

New in Audacity 2.3.2 (May 14, 2019)

New in Audacity 2.3.1 (Mar 19, 2019)

New in Audacity 2.3.1 RC (Feb 28, 2019)

64-bit Mac build:
The 2.3.1 release of Audacity for macOS is now a 64-bit build and will only run on modern 64-bit Macs, running OSX 10.7 or later.
Note carefully that if you use the LAME library for MP3 export or the FFmpeg library you will need to install the 64-bit versions of those libraries.
FFmpeg is used for importing and exporting a much larger range of audio formats including M4A (AAC), AC3, AMR (narrow band) and WMA.
Scrub Ruler:
The Scrub Ruler is now turned "off" by default and is not displayed. The reason we did this was because we found too many users were accidentally clicking in the Scrub Ruler and then finding themselves stuck in Scrubbing mode.
This will only affect you if you opt to reset your preferences settings as part of the 2.3.1 installation, manually reset your preferences or install Audacity for the first time.
If you want/need to turn it back on again use either the Transport > Scrubbing and check the Scrub Ruler to be "on". Or right click in the Timeline and select Enable Scrub Ruler.
The Scrub and Seek commands are still readily available from the Transport menu.
Advanced Vertical Zooming:
We have added a new command to the View > Zoom menu for turning Advanced Vertical Zooming "on" or "off".
Advanced Vertical Zooming enables you to use left-click gestures in the Vertical Scale to control zooming (this is in addition to the Simple mode vertical zooming commands available from the right-click context menu in the Vertical Scale).
In version 2.2.2 we changed the way vertical zooming works, splitting it into Simple and Advanced forms with the Advanced form turned off by default. Advanced mode could be turned on in Tracks Behaviors preferences but many users failed to find it there. Accordingly we introduced this new command to make this more discoverable.
Micro Fades:
Micro fades (introduced in 2.3.0) can reduce the click when playback starts and stops. We've now made this an opt-in feature rather than provide it all the time, this can be set in Playback Preferences.
Regular Interval Labels improvements:
We have made some improvements to Regular Interval Labels, accessed by Tools > Regular Interval Labels.
In particular we have made it possible to create range labels and not just point labels with this Tool. You can do this by specifying the label length in the new input field Length of label region (seconds). See this page for full details of how the improved Tool works.
Bug Fixes:
Linux: Audacity 2.3.0 was available only for Mac and Windows, and Linux used 2.2.1. Audacity 2.3.1 is available for Linux.
Windows and Linux: Intermittent truncation of the end of a recording - see Bug #2009
Can't adjust Time Track envelope when Logarithmic scale selected - see Bug #1832
Mixer Board does not automatically update when tracks added or removed - see Bug #2022
Regular Interval Labels fails - see Bug #2014
Windows: Regular Interval Labels on multiple tracks produces multiple labels - see Bug #1298
Multiple problems with Change Pitch - see Bug #2016
Mac: Audacity crashes when right clicking in label after copying label text to ano app - see Bug #2028
Linux: Assert on recording or generating when main Window minimized - see Bug #2040
Windows: Macros - "ExportMP3 before" and "ExportMP3 after" overwrite causing non-critical data loss - see Bug #2054
Macros: Change Pitch in a Macro does not remember speed parameter setting - see Bug #2069

New in Audacity 2.3.0 (Sep 30, 2018)

New in Audacity 2.2.2 (Feb 21, 2018)

New in Audacity 2.2.1 (Dec 27, 2017)

New in Audacity 2.2.1 RC (Nov 28, 2017)

New in Audacity 2.2.0 (Nov 5, 2017)

Improvements
Four Selectable themes provided, with new 'Light' theme as default, plus option to customize
Many menu changes:
Menus Reorganized
Extended menu bar provided
New keyboard commands for working with clips
Help buttons ? in Preferences, Effects, Generators and Analyzers - and other places
Non-Greying out of effects when no selection (and explanatory dialog with help button)
Playback of MIDI (and Allegro) files imported into Note Tracks is now available.
'Center' option in Selection Toolbar
Stem plots
Major overhaul to documentation/manual including many new images and streamlined text on landing pages for in-program help.
Other Changes
Append-record is now the default (use Shift + Record for old behavior, to record on a new track)
The Esc key now cancels all click-and-drag actions. It also chooses among overlapping mouse click targets, which is especially useful in the Multi-Tool.
Sync-Lock button removed (use menu item or keyboard shortcut instead)
New preferences and preference pages
Overhaul of much code:
Overhaul of envelope handling code to deal with some anomalies
Overhaul of exception handling for greater safety
New Logo
Bug Fixes
Major work on bug fixing. 198 bugs that were in 2.1.3 fixed for 2.2.0.
The most serious bug fixed this time round was bug 437 which was about what happens when Audacity is recording and runs out of storage.
The problems of incomplete support for macOs Sierra have been resolved (including bug 290, bug 1567, bug 1702, and bug 1703).
Most of the bugs fixed were more minor, such as bug 463 which was about a case in which the numbering on the timeline could display incorrect times.
For those who really have to know, the list of bugs fixed in 2.2.0 is here.
Supported Platforms
Audacity is for Windows, Mac and Linux desktop machines. There is no version of Audacity for Android or iPhone.
Windows
Audacity 2.2.0 requires the CPU to support the SSE2 instruction set which should be available on any Intel hardware produced after 2001 and any AMD hardware produced after 2003. To check what SSE levels your CPU supports, you can install CPU-Z. If your hardware only supports SSE, you may download Audacity 2.0.6 (ZIP, not installer) by clicking this link.
2.2.0 does not officially support Windows XP.
macOS / Mac OS X
Audacity 2.2.0 is for Intel Macs running OS X 10.6 and later and macOS. There are legacy versions for older OS X at http://audacityteam.org/download/legacy-mac/.
Linux
Linux support is tested on Ubuntu Linux.
Audacity may compile on Gentoo, Debian, Mint.
Audacity does not currently compile on SuSE Linux.
Issues
See our list of issues for much more detail of issues with Audacity 2.2.0.
Below are listed what we believe are the most common and important issues with 2.2.0 for most users.
File > Open
If you use the File > Open to "open" an audio file (WAV file or MP3 file say) the file will import properly but only the first few seconds of it will be shown (the default zoom level), but more importantly the horizontal scroll slider will be missing from the scroll bar, meaning you can't access the remaining audio.
All you need to do do is press the Play button or any of the Zoom buttons in the Edit toolbar and the horizontal scroll slider will be restored.
The best way to avoid this happening is to use the File > Import command to import the file into an Audacity project. All that the File > Open does with an audio file is to Import the audio into an open empty project, or if you already have an active project it will open a new project and import the file into that project.
Timer Record
Timer Record may not reliably stop the recording on some machines. The Elapsed and Remaining Time counters may stop counting. In this case it will be necessary to force quit Audacity.
On a few affected machines, the problem can be avoided if you leave focus on Audacity or ensure it has focus when recording is due to end.
(Linux) PULSE Audio
PulseAudio is not reliable when used with Audacity on Linux. Playback or recording may freeze, recording dropouts or fast playback may occur when using PulseAudio.
Freezes may be caused by repeatedly starting and stopping playback or recording in quick succession (or by holding down the Play or Record button).
Workarounds: Try launching Audacity from the terminal with the pulse latency set to 30 ms in an environment variable:
env PULSE_LATENCY_MSEC=30 audacity
If you get underruns noted in the terminal, try a higher number in the PULSE_LATENCY_MSEC command. If the problem is unchanged, try a lower number.
Alternatively, bypass pulseaudio by setting the playback and recording device to an ALSA (hw) choice in Device Toolbar. More help with this can be found here.
(Linux) MIDI
The timing of notes during MIDI playback may sound erratic on some machines. Optimizing the system for low latency MIDI playback can help to reduce the inaccuracies.
(Mac) Launch from Finder or AUP file
With Sierra 10.12 and High Sierra 10.13 opening a second project from Mac's Finder produces a second inaccessible instance of Audacity. If you already have an Audacity project open, and attempt to open a second .AUP from within the Finder window (whether by double clicking, right-clicking for Open on the pop-up menu, or typing Cmd-O) or by right-clicking on the .AUP file and using Open With, the second project attempts to open in a new instance of Audacity, visible in Apple’s Dock bar at the bottom of the screen. This second instance of Audacity will not be accessible and you will need to Force Quit it.
Workaround: Use Audacity's File > Open command to open the second and successive projects.
Accessibility
Far less of Audacity is properly accessible to visually impaired users than we would like. Currently the best supported platform for accessibility is Windows. We lost a lot of custom accessibility programming when we had to move to a more recent version of the wxWidgets library.

New in Audacity 2.2.0 RC (Oct 25, 2017)

New in Audacity 2.1.2 (Jan 21, 2016)

New in Audacity 2.1.1 (Jul 16, 2015)

New in Audacity 2.1.0 (Mar 29, 2015)

Changes and Improvements:
Effects:
LADSPA, VST and Audio Unit (OS X) effects now support real-time preview, save/load of user presets and saving effect settings across sessions. Note: Real-time preview does not yet support latency compensation.
VST effects now support import/export of FXB preset banks.
Shell VST effects that host multiple plugins are now supported.
All Effect Menu items (built-in or plugin) can now be used in a Chain.
Items in the Effect, Generate or Analyze Menus can be sorted or grouped by name, publisher or class of effect.
Noise Removal is improved and renamed to "Noise Reduction".
Change Speed has new time controls for current and new length. You can now enter the speed change as a multiplier e.g. "2" is twice as fast.
New "Crossfade Tracks" effect can be used for crossfading two tracks. This replaces Cross Fade In and Cross Fade Out.
Nyquist Prompt and most shipped Nyquist effects now have Preview button.
Interface:
Redesigned Meter Toolbars: The default shows separate Record and Playback Meters, half-height so they can be wider while docked, in gradient style.
A frequency selection can now be made (and spectral edit effects applied to those frequencies) when in a spectrogram view. You can also create or adjust frequency selections in a new "Spectral Selection Toolbar" (available at View > Toolbars).
Transcription Toolbar (Play-at-speed) can now loop play and cut-preview.
Timer Record now saves recordings automatically into an existing project.
New Armenian translation.
Operating system and sound device support:
(Windows) Audacity 2.1.0 requires Windows XP SP3 (32-bit) or XP SP2 (64-bit), Vista, Windows 7, Windows 8 or 8.1.
(Windows) Audacity is now compiled using Visual Studio 2013.
(Windows) Recording with WASAPI host now includes experimental support for physical inputs (up to 24-bit depth) as well as loopback recording.
(OS X) 10.10 (Yosemite) is now supported including Apple Audio Units.
Please report any issues with WASAPI recording/playback or Yosemite to http://audacity.sourceforge.net/contact/#feedback .
(Linux Ubuntu) Under Unity, keyboard shortcuts are not visible in the Audacity menus. Keyboard shortcuts are visible if you install the classic GNOME Flashback interface or under Unity if you open Audacity with the UBUNTU_MENUPROXY=0 environment variable. Audacity compiled from source will ship with src/audacity.desktop.in set to UBUNTU_MENUPROXY=0 but it will remain up to distributions to use this desktop file.
Bug fixes:
Interface:
Typing "j" or "k" in a label track activated the "move cursor" shortcut.
Spectrogram log (f) view displayed incorrectly until vertically zoomed.
Fixed crash after zooming out on vertical scale beyond +/-1.0.
Selections made with Selection Toolbar were not restored after Undo.
Undo could fail silently if a selection included/touched a clip boundary.
Imports and Exports
If there were invalid FFmpeg libs in system PATH this prevented Audacity recognising the installed FFmpeg or the FFmpeg specified in audacity.cfg.
Mac OS X:
Fix uninitialized buffer - this should correct playback buzz or crackle where the upper of multiple tracks started with or contained white space.
Device names were corrupted when using system language other than English.
Fixed crashes using (external program).
Waves v9 Audio Units should now work correctly.
GNU/Linux:
Fix "Audacity already running" error when using the command-line or context menu to open multiple or further files.
Fix segfault exporting an FFmpeg format to an unwritable folder.
Fix silent failure exporting FFmpeg, MP2 or OGG to an unwritable folder.
Fix ENTER activated an effect when OK button was greyed out.
Addendum:
The previous Audacity 2.0.6 version fixed an issue that projects did not reopen correctly if they contained tracks having 2^31 samples or greater of audio (just over 13.5 hours at 44100 Hz).

New in Audacity 2.1.0 RC2 (Mar 6, 2015)

Changes and Improvements:
Effects:
LADSPA, VST and Audio Unit (OS X) effects now support real-time preview, save/load of user presets and saving effect settings across sessions. Note: Real-time preview does not yet support latency compensation.
VST effects now support import/export of FXB preset banks.
Shell VST effects that host multiple plugins are now supported.
All Effect Menu items (built-in or plugin) can now be used in a Chain.
Items in the Effect, Generate or Analyze Menus can be sorted or grouped by name, publisher or class of effect.
Noise Removal is improved and renamed to "Noise Reduction".
Change Speed has new time controls for current and new length. You can now enter the speed change as a multiplier e.g. "2" is twice as fast.
New "Crossfade Tracks" effect can be used for crossfading two tracks. This replaces Cross Fade In and Cross Fade Out.
Nyquist Prompt and most shipped Nyquist effects now have Preview button.
Interface:
Redesigned Meter Toolbars: The default shows separate Record and Playback Meters, half-height so they can be wider while docked, in gradient style.
A frequency selection can now be made (and spectral edit effects applied to those frequencies) when in a spectrogram view. You can also create or adjust frequency selections in a new "Spectral Selection Toolbar" (available at View > Toolbars).
Transcription Toolbar (Play-at-speed) can now loop play and cut-preview.
Timer Record now saves recordings automatically into an existing project.
New Armenian translation.
Operating system and sound device support:
(Windows) Audacity 2,1.0 requires Windows XP SP3 (32-bit) or XP SP2 (64-bit), Vista, Windows 7, Windows 8 or 8,1.
(Windows) Audacity is now compiled using Visual Studio 2013.
(Windows) Recording with WASAPI host now includes experimental support for physical inputs (up to 24-bit depth) as well as loopback recording.
(OS X) 10.10 (Yosemite) is now supported including Apple Audio Units,
Please report any issues with WASAPI recording/playback or Yosemite to http://audacity.sourceforge.net/contact/#feedback .
(Linux Ubuntu) Under Unity, keyboard shortcuts are not visible in the Audacity menus. Keyboard shortcuts are visible if you install the classic GNOME Flashback interface or under Unity if you open Audacity with the UBUNTU_MENUPROXY=0 environment variable. Audacity compiled from source will ship with src/audacity.desktop.in set to UBUNTU_MENUPROXY=0 but it will remain up to distributions to use this desktop file.
Bug fixes:
Interface:
Typing "j" or "k" in a label track activated the "move cursor" shortcut.
Spectrogram log (f) view displayed incorrectly until vertically zoomed.
Fixed crash after zooming out on vertical scale beyond +/-1.0.
Selections made with Selection Toolbar were not restored after Undo.
Undo could fail silently if a selection included/touched a clip boundary.
Imports and Exports:
If there were invalid FFmpeg libs in system PATH this prevented Audacity recognising the installed FFmpeg or the FFmpeg specified in audacity.cfg.
Mac OS X:
Fix uninitialized buffer - this should correct playback buzz or crackle where the upper of multiple tracks started with or contained white space.
Device names were corrupted when using system language other than English.
Fixed crashes using (external program).
Waves v9 Audio Units should now work correctly.
GNU/Linux:
Fix "Audacity already running" error when using the command-line or context menu to open multiple or further files.
Fix segfault exporting an FFmpeg format to an unwritable folder.
Fix silent failure exporting FFmpeg, MP2 or OGG to an unwritable folder.
Fix ENTER activated an effect when OK button was greyed out.
Addendum:
The previous Audacity 2.0.6 version fixed an issue that projects did not reopen correctly if they contained tracks having 2^31 samples or greater of audio (just over 13.5 hours at 44100 Hz).

New in Audacity 2.1.0 RC1 (Mar 4, 2015)

Changes and Improvements:
Effects:
LADSPA, VST and Audio Unit (OS X) effects now support real-time preview, save/load of user presets and saving effect settings across sessions.
Note: Real-time preview does not yet support latency compensation.
VST effects now support import/export of FXB preset banks.
Shell VST effects that host multiple plugins are now supported.
All Effect Menu items (built-in or plugin) can now be used in a Chain.
Items in the Effect, Generate or Analyze Menus can be sorted or grouped by name, publisher or class of effect.
Noise Removal is improved and renamed to "Noise Reduction".
Change Speed has new time controls for current and new length. You can now enter the speed change as a multiplier e.g. "2" is twice as fast.
New "Crossfade Tracks" effect can be used for crossfading two tracks. This replaces Cross Fade In and Cross Fade Out.
Nyquist Prompt and most shipped Nyquist effects now have Preview button.
Interface:
Redesigned Meter Toolbars: The default shows separate Record and Playback Meters, half-height so they can be wider while docked, in gradient style.
A frequency selection can now be made (and spectral edit effects applied to those frequencies) when in a spectrogram view. You can also create or adjust frequency selections in a new "Spectral Selection Toolbar" (available at View > Toolbars).
Transcription Toolbar (Play-at-speed) can now loop play and cut-preview.
Timer Record now saves recordings automatically into an existing project.
New Armenian translation.
(Linux Ubuntu) Under Unity, keyboard shortcuts are not visible in the Audacity menus. Keyboard shortcuts are visible if you install the classic GNOME Flashback interface or under Unity if you open Audacity with the UBUNTU_MENUPROXY=0 environment variable. Audacity compiled from source will ship with rc/audacity.desktop.in set to UBUNTU_MENUPROXY=0 but it will remain up to distributions to use this desktop file.
Bug fixes:
Interface:
Typing "j" or "k" in a label track activated the "move cursor" shortcut.
Spectrogram log (f) view displayed incorrectly until vertically zoomed.
Fixed crash after zooming out on vertical scale beyond +/-1.0.
Selections made with Selection Toolbar were not restored after Undo.
Undo could fail silently if a selection included/touched a clip boundary.
Imports and Exports
If there were invalid FFmpeg libs in system PATH this prevented Audacity recognising the installed FFmpeg or the FFmpeg specified in audacity.cfg.
GNU/Linux:
Fix "Audacity already running" error when using the command-line or context menu to open multiple or further files.
Fix segfault exporting an FFmpeg format to an unwritable folder.
Fix silent failure exporting FFmpeg, MP2 or OGG to an unwritable folder.
Fix ENTER activated an effect when OK button was greyed out.
Addendum:
The previous Audacity 2.0.6 version fixed an issue that projects did not reopen correctly if they contained tracks having 2^31 samples or greater of audio (just over 13.5 hours at 44100 Hz).

New in Audacity 2.0.5 (Oct 22, 2013)

New in Audacity 2.0.5 RC1 (Oct 16, 2013)

Changes and Improvements:
Tracks Menu:
The separate commands that aligned track start or end with the cursor or with selection start are combined into "Cursor/Selection Start" commands.
"Align and Move Cursor" renamed to "Move Selection when Aligning".
Label Tracks:
Labels Editor now allows empty labels to be saved on closing the editor.
TAB and SHIFT+TAB when the label track has focus now always move forwards or backwards respectively to the nearest label.
(Windows) On a very few machines, the Windows WDM-KS low latency audio host introduced in Audacity 2.0.4 caused Audacity to hang or the computer to crash. WDM-KS has been removed from 2.0.5 until it can be safely enabled.
(Windows and OS X) Screen reader improvements for Install VST Effects dialog.
(OS X) Audio Unit plug-ins detected by Audacity on launch are now not loaded until chosen from the Effect menu. This should speed up launch and avoid crashes at launch due to misbehaving Audio Units.
(Linux) Update to PortAudio r1910 fixes memory and other bugs under ALSA.
(Linux) Applied fix for wxGTK 2.8.12 bug which resulted in loss of Audacity's menu bar (or visual corruption under Unity) on Debian-based systems.
Bug fixes for:
Shaped dither was corrupted and too loud on all stereo exports except FLAC.
Keyboard Preferences: some Edit and Align commands for different sub-menus showed the same name.
Recordings stopped with "Stop and Set Cursor" shortcut could not be undone.
In locales that use comma for decimal separator:
Text boxes with slider in Nyquist effects only produced whole numbers when using comma to enter a fractional number. Text boxes without slider still have this problem.
Built-in generators produced silence after running a Nyquist effect.
(Windows) When first changing to Windows WASAPI host, the input volume slider in Mixer Toolbar was enabled when it should have been permanently disabled.
(Windows) On some machines, launching Audacity then recording from the current Device Toolbar input would not record until the input was reselected.
(OS X) Frequent crashes occurred on importing audio files on some machines.
(OS X) Files did not open using Finder "Open with", double-clicking the file or dragging the file to the Audacity icon.
(Linux 64-bit) Fixed a crash when using Equalization.
(Linux) It was not possible to open an effect or other dialog then navigate through the dialog using TAB.
(Linux) The Play shortcut did not play a read-directly WAV, AIFF or FLAC import if the warning for importing uncompressed files appeared.

New in Audacity 2.0.4 (Sep 9, 2013)

New in Audacity 2.0.4 RC1 (Sep 2, 2013)

Changes and Improvements:
New "Reverb" effect to replace GVerb, based on the original "Freeverb".
New View > Go to Selection Start and Go to Selection End commands.
New "Align End to End" command to append existing tracks to each other.
Change Tempo now supports fractional BPM.
Plot Spectrum now supports FFT sizes up to 65536.
WAV files now support "Album Title", "Track Number" and "Genre" LIST INFO tags and also support ID3 tags.
Handle a bug in older iPods or some OS X applications that cause them to refuse AIFF files whose metadata contains an uneven number of characters,
(Windows) Added support for "Windows WDM-KS" host which can provide very low latencies if you reduce "Audio to Buffer" in Recording Preferences.
(Windows Vista and later) You can now record computer playback by choosing the new "Windows WASAPI" host in Device Toolbar then a "loopback" input.
(Windows and Mac OS X): VST scanning dialog now replaced with a dialog for choosing which VST effects to load.
(Linux) CTRL + ALT can now be used to smooth samples in Draw Tool.
Modules Preferences replaced with a dialog on launch of Audacity enabling you to choose which modules to load.
Bug fixes for:
Keyboard Preferences: Shortcuts for Generators, Effects and Analyzers were not exported. All imported shortcut changes were discarded.
Equalization curves were corrupted in Graphic EQ mode after switching to/from Draw Curves or after running the effect then reopening it.
Change Pitch displayed corrupted values when reducing pitch or editing "from" Frequency. Detection was very inaccurate at high sample rates.
Bass Boost no longer clips if the track contains 32-bit audio.
Auto Duck was excessively slow on older machines.
(Windows) Exported MP3 comments tags were not seen by Windows programs.
(Windows and OS X) Audacity crashed if you used system quit before file import was complete.
(Linux) Equalization crashed Audacity if the XML file was corrupted.
(Linux) When configuring effect parameters in "Edit Chains", "Preview" (not intended to be functional) caused a crash.
(Linux) LICENSE.txt and README.txt were wrongly installed in /usr/local/share/doc instead of /usr/local/share/doc/audacity/ .
Accessibility: ENTER did not toggle selectedness of a label track unless a label was selected.
Numerous other interface fixes.

New in Audacity 2.0.3 RC1 (Jan 19, 2013)

Bug fixes for:
Crash using Undo whilst time-shifting a track.
Crash using Repair if the selection extended into an empty track.
Export Multiple didn't prevent export if there was no audio or all audio was muted. This allowed export of small invalid files.
Time Track:
Loop Play of a speeded-up track inserted silence.
Playback and rendering was significantly inaccurate, creating audible and visual glitches.
Accessibility:
The mnemonics character "&" was read out by screen readers in most of the Preferences choices.
NVDA did not read static text in most dialogs. Text can now be read by using INSERT + B.
JAWS and Window-eyes misread the "Duration" control in Silence Generator.
Toolbar buttons could not be pressed by ENTER
Other interface bug fixes.
Changes and Improvements:
The SoX Resampler library (libsoxr) has replaced libresample in Audacity releases, offering both higher quality and greater speed. .
Time Tracks new features:
"Set Range" now changes only the range of the Time Track, preserving the pitch/speed set by any existing warp points.
Vertical scale added with options for linear and logarithmic display and interpolation.
Upper and lower speed limits will now be remembered when saving and reopening a project in 2.0.3. Warp points in projects saved by previous Audacity versions will be correctly restored in 2.0.3.
Warp points saved in a 2.0.3 project will be preserved if opened in previous versions but playback and display will be incorrect.
New effects:
Studio Fade Out (uses a filtered "S" curve).
Adjustable Fade (accessible effect for creating partial fades and adjustable fade shapes).
Bass and Treble (replaces Bass Boost).
Real sample rates up to 384000 Hz are now supported for playback and recording in high resolution devices (the maximum is up to 192000 Hz for Windows DirectSound host).
Labeled Regions in Edit Menu is renamed to "Labeled Audio" and now allows splits to be placed at point labels. Labeled audio regions that touch without overlapping are treated as separate regions. Overlapping labeled audio regions are treated as a single region.
Compilation: cmake is required in order to build libsoxr.
New Croatian translation of Audacity.

New in Audacity 2.0.1 RC1 (Jun 25, 2012)

New in Audacity 1.3.11 Beta (Jan 20, 2010)

New in Audacity 1.3.9 (Oct 2, 2009)

New in Audacity 1.3.9 Beta (Sep 1, 2009)

New in Audacity 1.3.8 Beta (Jul 17, 2009)

New in Audacity 1.3.7 Beta (Jan 28, 2009)

Cross-platform Bug Fixes:
Muting/soloing caused incorrect channel results in exported stereo files
Noise Removal and all Nyquist effects pasted the original unmodified audio at the end of the modified region
Noise Removal inserted a tail of low level noise at the end of the modified region
Nyquist and Compressor plug-ins did not display moving bars in progress dialogue and over-estimated "Remaining Time"
Cancelling Nyquist effects deleted unprocessed audio
Change Speed and Change Tempo failed to modify the original selection length
Cut lines invisible
Fixed various bugs importing multi-stream files via FFmpeg
File > Export as WAV could be corrupted if overwriting an imported WAV read direct from the file
Export multiple "Other uncompressed files" choice always produced 16-bit PCM audio irrespective of chosen options.
MP3 export usually produced a 128 kbps constant bit rate file irrespective of chosen options; reported length often incorrect
MP3 ID3 Genre tag misread on import if the genre list in Metadata Editor was opened and saved
Exported metadata tags in MP3, OGG and FLAC often not seen by player software - now substantially improved
WMA exports (via FFmpeg)corrupted if metadata tags included
Some multi-channel recording devices that previously recorded more than two channels no longer did so
Generated audio did not fit in window
No warning was given when saving an empty project
Beep on completing longer process did not work on many systems
fixed crashes importing lists of files (.LOF), in Meter Toolbar and Change Speed
Platform-specific Bug Fixes:
Spurious clipping at start of playback
Labels did not accept certain legal characters
Shortcuts did not work after running effects
Project Rate did not change to respect rate of first imported file if that rate was unsupported
New Features:
F11 Full Screen mode
High-quality "Sliding Time Scale/Pitch Shift" effect
Audio Contrast Analyzer for testing audio on the internet for WCAG2 accessibility compliance.
Windows: sound devices can now be opened using the more efficient DirectSound API
Other changes:
Latency correction should be improved for many users by employing a fixed rather than variable correction
Grouping of Effects into categories turned off until a way is added for users to do so themselves
Numerous minor interface improvements such as Metadata Editor navigation, new "hh:mm:ss + hundredths" selection format
Note: Windows users wanting to export MP3 files will require the latest version of the LAME encoder from here.