Official support for the Roland DJ-707M is now available for macOS 12 Monterey & Serato DJ Pro 2.5.11
However, we are aware of an issue that prevents some users from seeing the Install/Update driver pop-up in Serato DJ Pro, when connecting the Roland DJ-707M, on macOS 12 Monterey.
This can occur if either the DJ-707M 1.0 or 1.01 driver for macOS has been installed on a older version of macOS, and the user has now updated to macOS 12 Monterey, which requires the 1.03 driver.
Without this driver installed, your DJ-707M will not connect to Serato DJ Pro 2.5.11 or higher.
To rectify this issue, simply manually download and install the DJ-707M 1.03 driver for macOS 12 Monterey, directly from Roland's website, here.