Initial Notes on MacOS 15 (Sequoia)

Earlier today, Apple announced the next version of the Mac’s operating system: MacOS 15 (Sequoia). Developers are just now receiving an initial version of Sequoia to test with, and the official release is expected this fall. Here at Rogue Amoeba, we’ve already begun the work necessary to update our entire product line for Sequoia, with official support coming as soon as possible.
For now, however, we strongly encourage our users to steer clear of Apple’s beta OS releases. All of our software is fully supported on the current MacOS 14 (Sonoma) and lower, and we recommend sticking with those OSes.
Current Sequoia Status
At present, our lineup can be divided into two groups.
Group #1: Functional on Sequoia
The following apps will function on Sequoia, and initial testing has surfaced no issues:

Airfoil
Audio Hijack
Farrago
Fission
Piezo

Do note that these apps are not officially supported on Sequoia yet. They’ll warn you of that when you run them, but will allow you to proceed.

Group #2: Inoperable on Sequoia
Meanwhile, these apps will not yet run at all on Sequoia:

Loopback
SoundSource

Updates in the Works
Our helpful Status page details the current state of affairs for major OS upgrades and other transitions. It’s the canonical source of information when it comes to supporting Sequoia.
In the past, our updates have generally arrived at the tail end of the OS’s development cycle. However, we know that some of our users will jump on Apple’s Sequoia betas earlier. This year, we’re aiming to provide releases with initial support sooner.
We’ll start by issuing test releases that run without warning on the new OS, followed by official updates to support Sequoia. You can turn on test releases now to get our latest updates for Sequoia as soon as they’re available.
More Soon
We expect to have more news soon, so consider subscribing to the blog via RSS and following our social media accounts as well. As always, stay tuned!