Google is rolling out an “advanced” sideloading flow for Android next month, introducing a one-time, 24-hour waiting period between activating app installations from unverified developers and the actual installation. Users must enable the “Allow apps from unverified developers” setting in Developer options to engage with this feature, which includes warnings during the waiting period. Installations via ADB remain unaffected, and users can disable developer options after enabling the new feature. The rollout is supported by the “Android Developer Verifier” app and will initially launch in Brazil, Indonesia, Singapore, and Thailand, with a global rollout expected next year.