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QuTS hero h5.2.10.3568 build 20260722 2026-07-23
Applicable Models
TS-h2490FU/TS-h1090FU
TS-h1290FX
TDS-h2489FU/TDS-h2489FU R2
TS-h3088XU-RP
TVS-h1288X/TVS-h1688X
TS-h987XU-RP/TS-h1887XU-RP/TS-h2287XU-RP/TS-h3087XU-RP
TS-h1886XU-RP/TS-1886XU-RP/TS-1886XU-RP R2/TS-h1886XU-RP R2
TS-h686/TS-h886
TNS-h1083X
TS-883XU/TS-883XU-RP/TS-1283XU-RP/TS-1683XU-RP/TS-983XU/TS-983XU-RP/TS-2483XU-RP/TS-h1283XU-RP/TS-h2483XU-RP/TS-h1683XU-RP
TS-h977XU-RP/TS-h1277XU-RP/TS-h1677XU-RP/TS-h2477XU-RP
TS-h1277AXU-RP/TS-h1677AXU-RP/TS-h3077AFU/TS-h2477AXU-RP/TS-h1077AFU
TVS-h1675U-RP/TVS-h1275U-RP/TVS-h875U-RP/TVS-h875U
TVS-675
TVS-h474/TVS-h674/TVS-h874/TVS-h874X/TVS-h674T/TVS-h874T
TBS-h574TX
TS-873AU/TS-873AU-RP/TS-1273AU-RP/TS-1673AU-RP/TS-873AeU/TS-873AeU-RP
TS-h973AX/TS-473A/TS-673A/TS-873A
TVS-672X/TVS-872X/TVS-672N/TVS-872N/TVS-472XT/TVS-672XT/TVS-872XT
TS-1655/TS-855X
TS-855eU/TS-855eU-RP/TS-h1655XeU-RP
TS-253E/TS-453E
HS-264/TBS-464/TS-364/TS-464/TS-664/TS-264/TS-464C2
TS-466C
TS-464U/TS-464U-RP/TS-1264U-RP/TS-464eU/TS-864eU/TS-864eU-RP
TS-i410X/TS-410E
TS-h765eU/TS-h665U/TS-h665U-RP/TS-h1465U-RP/TS-h1065eU/TS-h1065eU-RP
TS-h1277AFX/TVS-h877AX/TVS-h1277AX/TVS-h1677AX
Qu805/Qu605/Qu405/TS-h665/TS-h865
QAI-h1290FX
TS-467X/TS-667X
Security Updates
Applied multiple security updates to further enhance system security.
Fixed Issues
Fixed an issue where the system sometimes could not connect to an SNMP agent when the NAS had a large number of shared folders.
Fixed an issue where a RAIDZ1 storage pool could not resume expanding after reboot when the expansion task was interrupted by an abnormal shutdown.
Fixed a log management issue in Network & Virtual Switch to improve system stability.
Fixed an issue where it would take a long time to create a shared folder in a folder that contained an enormous number of files.
Fixed an issue where Domain Security Wizard would stop responding when checking a large number of unreachable domain controllers.
Fixed an issue where users could still retain SSH access even after being removed from the administrator group.
Fixed an issue where the system would still delete a snapshot marked as permanent during a snapshot cleanup after a snapshot retention period.
Fixed an issue where users could not unlock an encrypted shared folder whose folder name contained a white space.
Fixed an issue where LDAP users could not log in to the NAS via the web interface.
Fixed an issue where users could not use HybridMount to mount a remote NAS via WebDAV on a NAS running firmware 5.2.9.3492.
Fixed an issue in Fast Clone to improve system stability.
Fixed an issue that prevented users from completing a SnapSync job after updating firmware to 5.2.9.
Fixed an issue where the system could not delete old snapshots when running a SnapSync job using
QuTS hero h5.2.10.3568 build 20260722 | Release Notes | QNAP