Audacity 4 is a different working surface from Audacity 3. Tool modes are gone. Sync-Lock is gone. Projects save as .aup4. Clips are first-class, and moving a clip onto another clip cuts into the clip underneath. People who recorded confidently in Audacity 3 lose time looking for Select, Envelope, Draw, and Multi-tool modes that 4.x no longer has, for a Sync-Lock checkbox that is no longer there, and for a layout that used to sit in a familiar toolbar. Saving the project still does not export an audio file, which was always true and is easier to miss when the project extension itself has changed.
Some of those surprises are expensive in a live take. A first session is the wrong moment to discover that the default delete behavior no longer does what Sync-Lock used to do, or that a feature you planned the session around is listed in the official 4.0.0 notes as not in 4.0. A first attempt on 4.0.0 that felt wrong is also not the whole story: 4.0.2 restored automatic saving during recording, and restored trim, clear-selection, and zoom shortcuts that had been missing or broken for some users after 4.0.0.
The Transition Field Guide for Audacity 4 is a 5-page field guide and a one-page Classic versus new workspace map for that transition: what changed from Audacity 3 to Audacity 4.x, which 3 habits no longer apply, and how to run a first recording session in 4.0.2. Audacity 4.0.0 was released on 3 September 2026. The current patch at the time the kit was built was Audacity 4.0.2, released on 2 November 2026. Sources for the change list are the official Audacity 4.0.0 and 4.0.2 release notes and the official Audacity 3 to 4 transition guide. Shortcuts quoted in the kit are those the official transition guide lists. Confirm bindings in Preferences on your platform. The kit does not invent Command-key equivalents, and it does not include the Audacity application.
What 3 habits no longer apply in 4.x?
The problems the guide is built to prevent are specific, and most of them are muscle memory.
You reach for Select, Envelope, Draw, or Multi-tool modes, and they are not there. Official 4.0.0 notes and the transition guide are consistent: those separate modes have been removed. Their jobs are now context-sensitive.
You look for Sync-Lock and do not find it. Official 4.0.0 notes: Sync-Lock has been removed. Ripple editing and the official close-gap and insert-and-preserve-sync commands replace it. Delete, cut, and paste now have explicit variants that either leave a gap or move later material to preserve timing. You can set the default delete behavior in Preferences, under Editing. To edit while keeping tracks in sync, use Delete and close gap (all tracks) and Insert and preserve sync. The official transition guide lists Ctrl+Delete for the first and Ctrl+Shift+V for the second, and notes that you can edit these in Preferences. Confirm the bindings on your platform if you are not on a Ctrl-labeled keyboard. Do not assume a modifier the guide has not checked.
You move a clip onto another clip and discover that 4.x cuts into the clip underneath. The official transition guide describes this as the underlying clip being “eaten” into. Know this before you drag. The rule is the same in Classic and in Modern.
You save the project and think the audio file has been exported, or you do not know that 4.x saves as .aup4 and still opens .aup3. Saving a project and exporting an audio file remain different actions, as they were. The project is not the export.
You plan a session around Time Tracks, Note or MIDI tracks, the Mixer, Macro Manager or the scripting pipe, VAMP or LADSPA, or Play-at-speed, which official 4.0.0 notes list as not in 4.0. That is a version fact, not a reason to stay off 4.x if your work does not need them. Check the release notes for your exact 4.x version before you plan a session that depends on one of these.
You stay on 4.0.0 after a first attempt went badly, without knowing that 4.0.2 restored automatic saving during recording and restored trim, clear-selection, and zoom shortcuts. 4.0.2 does not introduce a different editing model from 4.0.0. It does restore behaviors you may have missed. If you last tried 4.0.0 and those behaviors felt wrong, use 4.0.2 or later.
You choose a workspace on first launch without a clear picture of Classic versus Modern, or Music, and then hunt for tools that have moved.
Why does a transition need a map, not just a release note?
Three older tool shifts make the same point: the new machine will open the old work, and it will still punish habits that belonged to the previous one.
When photographers moved from film to digital, the roll and the print remained different objects, even though the camera now pretended to show you both at once. Saving the card was not the same as making the deliverable. People who treated the in-camera file as the print learned that lesson in a deadline, not in a test shot.
When compositors moved from hot-metal type to phototypesetting, the keyboard still produced letters, and the muscle memory of a case layout did not all transfer. The work looked familiar enough to hide the places where a habit would now damage the galley. A short, written map of what had moved was worth more than a general assurance that “you still type.”
When pilots transition from one aircraft type to another, the checklist is not an insult to their experience. It is how you keep a familiar-looking cockpit from collecting a leftover habit at the wrong moment. The type rating is a recognition that similar work, in a different working surface, is still a different working surface.
Audacity 4 is in that family of changes. Projects still open. Most of what you know still applies. Several everyday moves have changed place or changed name. The official notes and transition guide are the sources of truth, and they are spread across more than one page, written at more than one moment in the 4.x cycle. This kit pulls the session-critical changes into one field guide and one map, so you can take them into a first session instead of discovering them in the middle of a take.
What changed in the clip model, and where did the tool modes go?
This is the change you will feel most often, and official notes are consistent across the 4.0.0 release notes and the transition guide. Click a clip header to select that clip. Shift-click selects multiple clips, including clips that are not touching. Handles appear on a selected clip. Trim and time-stretch apply to all selected clips at once. Clips can be grouped and moved, copied, pasted, or duplicated as a group, as the 4.0.0 notes describe. Paste can create a track when needed and can paste audio files from the system clipboard.
The old modes have been redistributed. In Audacity 3 you switched to the Select tool with F1; in Audacity 4 you select clips and ranges directly, and range selection remains available on the waveform. In Audacity 3 you switched to the Envelope tool with F2; in Audacity 4, envelopes are a visual layer. The official transition guide: toggle visibility with the Automation button. 4.0.0 notes also describe volume envelopes in Clip gain mode. In Audacity 3 you switched to the Draw tool with F3; in Audacity 4 you zoom in until individual samples are visible, and the cursor becomes a pencil near a sample point. Draw engages itself. Multi-tool is gone because the context does the work the multi-tool used to mode-switch for. A Split tool is new in 4: press or hold S, then click the waveform or clip header. Split, split-cut, split-delete, split at silences, and split to a new track remain available as commands, as the 4.0.0 notes describe.
Audacity 4 also adds a knob control, described in the official transition guide: click and drag up or right to increase, down or left to decrease. Double-click resets. Shift and drag is a finer adjustment.
Classic, Modern, and the first launch
The official transition guide states that the first run asks for an app theme, light or dark, a clip theme, and a workspace. The official 4.0.0 notes list three included workspaces: Modern, Classic, and Music. The Classic clip theme and the Classic workspace are designed to keep things as close to Audacity 3 as possible, including familiar tools and buttons. Nothing is locked in: the workspace can be changed later from the selector in the top bar, and the rest in Preferences.
Pick Classic if you want the shortest path from 3. Pick Modern if you are ready to learn the new default layout, and keep the workspace map open for the first sessions. Either way, the clip model is the 4.x model. Classic keeps a more familiar button layout. The underlying behavior is still context-sensitive.
Projects come with you. Official documentation for Audacity 4: the application saves projects as .aup4, and it opens the .aup3 projects you made in Audacity 3. Open an Audacity 3 project in 4, confirm it plays, and only then save a 4.x copy if you intend to keep working in 4. If you opened an older .aup3 file, confirm playback before you rely on the 4.x copy as the working original.
What does a first recording session in 4.0.2 look like?
Read the field guide and keep the workspace map open. Launch Audacity 4.0.2, or your current 4.x. On first run, choose theme, clip theme, and workspace. Confirm the recording device in the usual meter and device controls for your layout, and make a short test take before a real session. Record a short slate — who, where, date, take number — and then the take. Stop, select the take as a clip, and play it back. Practice adding a second clip with Shift-click if you recorded more than one. If you need to close a gap across tracks, use the official Delete and close gap (all tracks) command, not a leftover Sync-Lock habit. Save the project as .aup4. Export a separate audio file when you need a wav, flac, or other deliverable.
The one-page map is built for that session. It puts Classic and the new default side by side for first launch, selecting work, the old tool modes, Sync-Lock and ripple commands, moving clips, and saving. Shortcuts on the map are those the official transition guide lists. Confirm them in Preferences.
What, exactly, is in the kit?
The zip is a 5-page field guide, a one-page Classic versus new workspace map, and a README. The guide covers what changed, workspaces and themes, the first recording session in 4.x, and the features official notes list as not in 4.0. The map is the page you keep open during that first session. The kit does not include Audacity, plugins, or sample audio.
If you already live in 4.0.2 and know the new clip model, this kit will be a short confirmation. If you are about to open 4.x for a real session, this is the briefing to do first.
Audacity is a trademark of MuseCY SM Ltd. / Muse Group, as used for the official application. This is an independent guide for people who use Audacity. It is not an official Audacity or Muse product, and it does not include the Audacity application.
A briefing you can take into the first take
The official notes are the sources of truth. This kit pulls the session-critical changes into one field guide and one map: tool modes, Sync-Lock and ripple, clip overlap, .aup4 versus export, Classic versus the new default, what 4.0.2 restored, and what official 4.0.0 notes still list as not in 4.0. You can take that into a first session instead of discovering those changes in the middle of a take.
Read the guide, keep the workspace map open, and run your first session in Audacity 4.0.2, or your current 4.x. Get the Transition Field Guide for Audacity 4 and confirm the shortcut bindings in Preferences before you count on them in a live take.
The Transition Field Guide for Audacity 4 is listed on our Tools for Audacity page, alongside the rest of the tools in that line. You can browse every Organa Obscura tool on the Products page.
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