The End of the Open APK? Google’s 2026 Roadmap to “Vanquish” Unsigned Sideloading

Google has updated Android sideloading rules: users cannot directly sideload unverified APKs without requesting a 24-hour exemption, and independent app distributors must hold a certified Google developer account and cryptographically sign their apps. The rollout begins with visibility in Google System settings (April 2026), limited early access (June–August 2026), and mandatory registration for verified developers on certified devices in Brazil, Indonesia, Singapore, and Thailand by September 30, 2026, with global expansion planned thereafter; enforcement relies on Google Play Services and does not apply to uncertified devices.