: Google merged Backup and Sync with "Drive File Stream" to create Google Drive for Desktop .
: "The risks of using outdated version 3.51 software in 2026." Google-Backup-And-Sync-3-51-3346-3543-Free-Download--Latest-
Google discontinued the original Backup and Sync tool in October 2021. It has been replaced by the unified Google Drive for Desktop application. : Google merged Backup and Sync with "Drive