Install immediately on compatible handsets: stable build (API level 34) brings stronger security patches, improved battery behavior, better app compatibility, and tighter privacy controls. Stable rollout began October 4, 2023 for Google-owned phones; Pixel 8 and Pixel 8 Pro shipped with this build. Older Pixel models from Pixel 4a onward received official updates. Major manufacturers started deployments soon after: Samsung rolled out One UI 6 based on OS 14 for S23 series across October-Novembe...