Android Security Patch for April 2019 consists of the 2019-04-01 and 2019-04-05 security patch levels, which address a total of 89 vulnerabilities across several components, including the Android framework, Media framework, Android system, and Qualcomm components. The most sever of them all could allow a remote attacker to execute arbitrary code by using a malicious file. In addition to patching security flaws, the Android Security Patch for April 2019 update also improves the performance and reliability of supported Pixel devices. For Pixel 3 and Pixel 3 XL users, it improves the voice-unlocking performance for Google Assistant and the Wi-Fi connectivity during eSIM activation for some mobile carriers.