stable

[Important Notes] - To learn more about NAS models that support the TR-004/TR-002, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004 external RAID enclosure to expand NAS storage space, the enclosure must have exactly one external RAID group. Individual disks...

QTS 4.4.1.0948 Build 20190527 for TS-X51/TS-X53 [Important Notes] - For the status of QTS updates and maintenance for your NAS model, visit Product Support Status :: QNAP - This QTS update changes the file system of the system partition to ext4 for ARM-based models with Annapurna Labs...

QTS 4.3.6.0923 build 20190425 [Important Notes] - To learn more about NAS models that support the TR-004U/TR-004/TR-002, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004 external RAID enclosure to expand NAS storage space, the enclosure must have exactly...

QTS 4.3.6.0895 build 20190328 [Important Notes] - To learn more about NAS models that support the TR-004/TR-002, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004 external RAID enclosure to expand NAS storage space, the enclosure must have exactly one...

QTS 4.3.6.0883 build 20190316 [Important Notes] - To learn more about NAS models that support the TR-004/TR-002, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004 external RAID enclosure to expand NAS storage space, the enclosure must have exactly one...

QTS 4.3.6.0875 build 20190308 [Important Notes] - Modified the file download and update settings for the China region. - To learn more about NAS models that support the TR-004/TR-002, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004/TR-002 external RAID...

QTS 4.3.6.0867 build 20190228 [Important Notes] - Modified the file download and update settings for the China region. - To learn more about NAS models that support the TR-004/TR-002, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004/TR-002 external RAID...

QTS 4.3.6.0805 build 20181228 [Important Notes] - To learn more about NAS models that support the TR-004, see the Compatibility List at Storage Expansion Compatibility - QNAP - To use a TR-004 external RAID enclosure to expand NAS storage space, the enclosure must have exactly one external RAID...

, QTS 4.3.4.0569 build 20180501 [Important Notes] - This QTS update changes the file system of the system partition to ext4 for ARM-based models with Annapurna Labs processors. For data security reasons, you are not able to downgrade QTS to a previous version after this update. Affected...

QTS 4.3.4.0435 build 20171230 [Important Notes] - To ensure system stability, QNAP recommends updating and then restarting QVPN Service in App Center after you update QTS to 4.3.4. - As QTS previous versions of ARM models do not support snapshots, when you upgrade to QTS 4.3.4, the original...

QTS 4.3.3.0418 build 20171227 for ARM AL models [Important Notes] - For the status of QTS updates and maintenance for your NAS model, visit Product Support Status :: QNAP - When QTS 4.3.x is installed on NAS models running on 64-bit Intel and AMD processors, some applications may not be...

QTS 4.3.4.0428 build 20171224 [Important Notes] - As QTS previous versions of ARM models do not support snapshots, when you upgrade to QTS 4.3.4, the original volume cannot use this feature immediately. To solve this problem, you have to back up the existing data on your QNAP NAS to external...

QTS 4.3.4.0427 build 20171223 [Important Notes] - As QTS previous versions of ARM models do not support snapshots, when you upgrade to QTS 4.3.4, the original volume cannot use this feature immediately. To solve this problem, you have to back up the existing data on your QNAP NAS to external...

QTS 4.3.3.0378 Build 20171117 [Important Notes] - For the status of QTS updates and maintenance for your NAS model, visit Product Support Status :: QNAP - When QTS 4.3.x is installed on NAS models running on 64-bit Intel and AMD processors, some applications may not be supported. To check if...

[Important Notes] - For the status of QTS updates and maintenance for your NAS model, visit Product Support Status :: QNAP - When QTS 4.3.x is installed on NAS models running on 64-bit Intel and AMD processors, some applications may not be supported. To check if installed apps on your NAS are...

[Compatibility] - SS-439 Pro, SS-839 Pro, TS-110, TS-210, TS-239 Pro, TS-239 Pro II, TS-239 Pro II+, TS-259 Pro, TS-259 Pro+, TS-269H, TS-410, TS-410U, TS-439 Pro, TS-439 Pro II, TS-439 Pro II+, TS-439U-RP/ SP, TS-459 Pro, TS-459 Pro II, TS-459 Pro+, TS-459U-RP/SP, TS-459U-RP+/SP+, TS-509 Pro...

[Important Notes] - For the status of QTS updates and maintenance for your NAS model, visit Product Support Status :: QNAP - When QTS 4.3.x is installed on NAS models running on 64-bit Intel and AMD processors, some applications may not be supported. To check if installed apps on your NAS are...

[Compatibility] - SS-439 Pro, SS-839 Pro, TS-110, TS-210, TS-239 Pro, TS-239 Pro II, TS-239 Pro II+, TS-259 Pro, TS-259 Pro+, TS-269H, TS-410, TS-410U, TS-439 Pro, TS-439 Pro II, TS-439 Pro II+, TS-439U-RP/ SP, TS-459 Pro, TS-459 Pro II, TS-459 Pro+, TS-459U-RP/SP, TS-459U-RP+/SP+, TS-509 Pro...

[Compatibility] - SS-439 Pro, SS-839 Pro, TS-110, TS-210, TS-239 Pro, TS-239 Pro II, TS-239 Pro II+, TS-259 Pro, TS-259 Pro+, TS-269H, TS-410, TS-410U, TS-439 Pro, TS-439 Pro II, TS-439 Pro II+, TS-439U-RP/ SP, TS-459 Pro, TS-459 Pro II, TS-459 Pro+, TS-459U-RP/SP, TS-459U-RP+/SP+, TS-509 Pro...

[Important Notes] - For the status of QTS updates and maintenance for your NAS model, visit Product Support Status :: QNAP - When QTS 4.3.x is installed on NAS models running on 64-bit Intel and AMD processors, some applications may not be supported. To check if installed apps on your NAS are...