Ardour 9.10 bringing a wave of quality-of-life editing improvements rather than a major feature overhaul. The headline addition is live gain-envelope waveform updates, though the feature is disabled by default and must be toggled manually. Other notable changes include multi-lane automation dragging, a macOS GUI rendering revamp that boosts performance, and pattern-based track naming borrowed from Harrison's console OS. One caveat stands out: users still on versions older than 9.9 should upgrade before copying region-FX playlists, since doing so can irreversibly corrupt their session files.

Ardour 9.10 Arrives With Editing Polish, and a Real Session-Corruption Warning

Ardour 9.10 has been released. The open-source DAW is tightening the day-to-day editing experience, quietly fixing a handful of long-standing bugs, and dropping one warning you really should read.

Keep in mind that this release builds on the enormous 9.0 rewrite and follows the 9.8 point drop. Version numbering has been all over the place, there was no 9.3, 9.4, 9.6, or 9.9 at any point. So a 9.10 landing two months after 9.8 is really just how the project breathes: polish between the big milestones.

What actually changed

The headline feature is the kind of thing you might never consciously notice. Ardour can redraw an audio region's waveform in real time as you drag the gain-envelope nodes around it. The picture reflects the gain you're applying instead of sitting there frozen. It's good feedback while carving out dynamics. It doesn't kick on automatically, though. You'll toggle it in Preferences > Appearance / Waveform > Apply region gain.

A second option sits next to it, also off by default, that lets a gain envelope slide along with a region's audio contents when you slip it.

The rest of the editing improvements are smaller but real. You can select automation nodes across every lane and shift them together. Middle-drag locks X position for automation points, lollipops, and notes, so they stop drifting sideways by accident. Trim Front and Trim Back now work on whatever region you hover over even when nothing is selected. The editor can also snap the fade length to its minimum when an edit point falls outside the region, sparing you pixel-by-pixel work to shave a fade away.

The MIDI side got love as well. New context menus cover Quantize, Legatize, Transform, and Remove Overlap. Middle-click-to-delete notes is gone and replaced by Shift+right-click, matching how automation points now behave. Quantizing in the main editor pops open a dialog when the MidiInspector is hidden.

The single concrete performance win lives on macOS. Hoshino Lina, the developer best known for her Asahi Linux work, rebuilt how Apple's platform draws Ardour's interface. All GUI rendering now routes through an intermediate off-screen image surface, which the project says improves performance "quite noticeably." The old route to render directly through OpenGL has been removed. Ardour is also honest that redrawing bugs still appear on some macOS versions and hardware combos, and it's still chasing them. Better to admit it than to claim a clean sweep.

Two other additions are worth a look. A wall-clock timecode master now syncs Ardour's own LTC or MTC to your system clock, so you can run or record a show timestamped with the actual time of day. Sequential track naming was lifted straight from IKIS, the console OS by Harrison: type "stem 1..8" into the name field and hit Enter to get Stem 1 through Stem 8. The ".." is the trigger, and sequences like "A..Z" or "1..999" work too. Create a batch of new tracks and it adjusts the top number automatically. Simple idea, and the kind of thing you don't realize you missed until it exists.

Why this whole thing matters

Here's the part that matters most. The bug in copying playlists that contain regions with region FX is fixed, but Ardour wants you to understand the risk it left behind. If you used any version older than 9.9 to copy such playlists, the session file may already be irreversibly corrupted. Get onto 9.9 or later before you copy anything. It's a blunt reminder that "free software" still demands version hygiene.

Other fixes pile up: MIDI chase "ghost notes," multi-channel cue recording, MIDNAM corrections for MMA/GM drums, automation playback while looping, and key-enforcement settings that are finally saved and restored correctly. The plug-in world got a VST3 GUI resize fix on Linux/X11 and proper parameter values sent to tools like FabFilter at the end of a processing block.

For what it's worth, the editing workflow is exactly where Ardour makes its case. Pro Tools owns the big studios. Reaper quietly eats the budget-conscious crowd with a cheap perpetual license and a light CPU footprint. Ardour trades on freedom, on the ability to inspect and modify its own code, and on routing and automation depth that most free tools can't match. This release is just that same thesis, tightened.

The business model underneath all of this is still remarkable. Ardour is GPL-licensed and funded by roughly $1 micropayments, optional subscriptions, and donations. No venture money. No marketing budget. Primary author Paul Davis, who also created the JACK audio server, has said he's made a living from it for about a decade on that model alone. The project's FAQ puts it plainly: without revenue, this "big, complex software project" will "almost certainly grind to a halt." The paid download system exists to keep the lights on while the software stays open.

So Ardour 9.10 is a modest, well-judged refinement. It's a polish pass, not a revolution, and much of it you won't notice on the first run. That's fine. The best editing-tool updates are the ones you stop thinking about.

If you edit in Ardour day to day, the install is worth the time. Head here for the full release notes.