Synology DSM 5.1 Update 2

DSM Version : 5.1-5021 Update 2 is released:

Fixed Issues
Fixed an issue where the failure of photo indexing may occur when usernames contain special characters.
Upgraded BIOS to enhance SATA compatibility on RS3614xs and RS3614RPxs models.
Enhanced stability on file-copying to USB drives.
Upgraded NTP to version 4.2.8 to address multiple vulnerabilities (CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, and CVE-2014-9296).
Enhanced the stability of QuickConnect connection to Surveillance Station.