QuTS hero h5.2.11.3652 build 20261014 released

Becker2020 · October 20, 2026, 11:58am

There is a new version

QuTS hero h5.2.11.3652 build 20261014 2026-10-20

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-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-h1073BXeU/TS-h1073BXeU-RP/TS-h673BXU/TS-h673BXU-RP/TS-h1473BXU-RP/TS-h1873BXU-RP
TS-467X/TS-667X/TS-867X
TS-h966TX

Important Notes

If your device is currently running a version earlier than QuTS hero 5.2.9, a “downgrade” confirmation prompt may appear when you manually update QuTS hero to 5.2.10 or later. The prompt does not affect the update. You can safely proceed to complete the update. This prompt does not appear when using Live Update.

Security Updates

Enhancement

Live updates on the TR- and TL-series JBOD devices now notify users of important updates, not necessarily the latest updates.

Fixed Issues

Fixed several issues to improve system stability.
Fixed an issue where the read speeds of a file would decrease after cloning the file.
Fixed an issue where installing ECC memory on the TS-867X would cause QuTS hero to identify the device as TS-EC867X and thus invalidate the QuTS hero license.
Fixed an issue where Storage & Snapshots could not identify the firmware version of a connected TL-R1200PES-RP JBOD expansion enclosure.
Fixed an issue to improve the stability of storage pool expansion.
Fixed an issue where taking an application-consistent snapshot of an iSCSI LUN from the NAS left the Windows VSS writers (including the Hyper-V writer) in a failed state that blocked later backups until the services were manually restarted.
Fixed an issue where Notification Center would not send a notification when a Qfiling rule was triggered.
Fixed an issue where running a SnapSync job from Snapshot Agent would not delete older snapshots, resulting in snapshot accumulation.
Fixed an issue where moving a file with a long path to Recycle Bin multiple times would cause the deletion to stay in process indefinitely.
Fixed an issue where RAID expansion could not automatically resume after rebooting the NAS.