New features in this release
From Audacity Development Manual

This page is an overview of prominent new functionality that has been introduced in Audacity 3.0.1
Version 3.0.1 is primarily a maintenance release.
- Details of all the major changes since 3.0.0 can be found in Audacity Release Notes 3.0.1.
Contents
Manage Macros improvements
The Manage Macros dialog has been improved for this release
- The button has been removed
- It is replaced with a button
- A new button has been added to enable you to save the results of editing a Macro.
- The button is grayed-out until you edit a Macro.

See Manage Macros for more details.
Bug Fixes
James: I'm thinking of discussing the unicode issues, Japanese Crash (Microsoft) Missing check marks (Apple) label emoji and 'Linux: differently configured wxWidgets'. And maybe not list those bugs a second time
P1 Bugs Fixed
- 2708 Nyquist effects fail silently with One hour plus stereo
- 2706 Win: Vocal Reduction and Isolation most options fail
- 2698 Noise Gate fails silently if "hold" is non-zero
- 2720 Cannot open project that's in a read only folder - error message vague
- 2710 Compressor with audio before T=0 crashes Audacity
- 2703 Mac: EGAT preview dialog is hidden behind the EGAT dialog
- 2707 Opened projects not being removed from "audacity.cfg"
- 2697 Linux: AUP3 projects use incorrect char size on "differently" configured wxWidgets
- 2718 Failed to execute a project file command (on server)
P2 Bugs Fixed
- 2701 Progress dialog interferes with scripting
- 2714 (Japanese & Korean) "Unable to parse project information"
- 2722 Noise Gate fails on a one hour stereo selection
- 2716 Cleared "Recent Files" are restored on next launch
- 2709 Mac: Missing sub-menu check marks in French
- 2696 Metadata Editor: changed size is not remembered/restored on next use
- 2699 Windows: Cannot edit labels with emoji in them correctly
- 2704 Mac: Stop button in EGATs with Preview does nor stop the preview
- 2676 Export: Incorrect handling over 0 dB
- 2694 Coloring of tracks in Mixer Board are awry
- 2692 Mac: VI users get trapped in radio buttons of Keyboard Preferences
P3 Bugs Fixed
- 2723 VST_PATH environment variable fails for non-standard locations
-
2524 Macros "Cancel" button is confusing - doesn't do "what it says on the tin" - 2209 Nyquist: Audacity crashes when running seq-write-smf
- 2522 In Macros, Record New Track and Play with a selection do not wait for completion.
-
1572 Dither not applied when exporting 24-bit WAV from 32-bit float - 2672 Plug-ins listed in reverse alphabetic order in Plug-ins Manager
- 2211 Mac: keyboard navigation problem in Libraries preferences dialog
- 2523 Audacity may suggest installing FFmpeg even when FFmpeg is installed
P4 Bugs Fixed
- 2733 Noise Gate 'Level Reduction' has a minimum of -60 dB
- 2726 Enh: Some preference changes are not written until Audacity exits
- 2717 Linux: Internal Error at DBConnection.cpp line 275
- 2721 Allegro (.gro files) cause crash with undo/redo
- 2684 Bitrot for Docimage script
- 2690 Move the actual build information to the top of the build information tab
- 2124 Import>Audio failure error message is misleading
- 2511 Enh: Remove the "Variable Speed: Fast / Standard" option from MP3 dialog
Talk about these, don't list?
==Additional new features==
This page New features in 3.0.1 - appendix gives an overview of further new functionality that has been introduced in this release of Audacity.
Links
> Audacity Release Notes 3.0.1 - detailed release notes for this release of Audacity