Audacity 4 AUP question

I recently heard a rumor that Audacity 4 may be getting close to a beta release, and it got me thinking about project compatibility.

I have podcast project files dating back to 2014 in the old .AUP format. Audacity 3.7 still opens those projects just fine, although it does encourage updating them to .AUP3.

To be honest, a bit of laziness has kept me from converting my archive over to .AUP3. At the same time, I do occasionally go back and pull older segments to reuse in my podcast, so maintaining access to those projects matters to me.

This raises a question for the Audacity team and community:

Will Audacity 4 continue to read both legacy .AUP and current .AUP3 project files?

I realize new versions often bring new project formats—perhaps even something like .AUP4—but long-term project access is important for those of us with large archives. If support for older formats is changing, I’ll probably keep an Audacity 3.7 installation available for archival work.

Just curious about the plans and hoping for some clarification.

Ron

2 Likes

It appears that Audacity 4 will not open AUP (pre-Audacity3) files. I just tried it with Audacity 4 alpha from Oct 30 2025.

Seems it would be a good idea to keep 3.7.7 around.

2 Likes

@Rontro809 Audacity 4 will not support .aup projects, and will only provide one-way conversion from .aup3 to .aup4.
So, to open .aup in Audacity 4, you will first have to convert it to .aup3, then convert it again to .aup4.