The May 2025 security update for Google Pixel devices began deployment on May 6, addressing a critical zero-day security vulnerability (CVE-2025-27363) and including three bug fixes along with 28 security patches. The rollout may take about one week to reach all devices, depending on models and carriers. The update prevents devices from reverting to older, vulnerable versions of the bootloader. It also resolves specific issues for Google Pixel 6 and newer devices, including improvements in microphone recording quality, resolution of Bluetooth pairing issues with certain smartwatches, and correction of secondary language display issues in quick settings. Users are advised to check for the update in the Settings app under System > Software update.