I finally found the beta version stable enough to be a release. The biggest added feature is the Stealth Auto-updater that will stop SoundSwitch, install the new version and restart it automatically without any user interaction.

I implemented this feature because some user found the auto-update notification annoying. This feature is opt-out in the settings panel. Speaking of which, it got a little redesign to only keep the Hotkeys and the list of devices in the other tabs.

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SoundSwitch Olium: 3.9.6