Compatibility

• QTS 4.3.4 is the final available firmware update for the following models: TS-1269U-RP, TS-869U-RP, TS-469U-RP, TS-469U-SP, TS-869 Pro, TS-869L, TS-669 Pro, TS-669L, TS-569 Pro, TS-569L, TS-469 Pro, TS-469L, TS-269 Pro, TS-269L.

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.
• For the status of QTS updates and maintenance for your NAS model, visit https://www.qnap.com/en/product/eol.php
• 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 compatible with QTS 4.3.x, download the QTS 64-bit compatibility tool and install it on your current QTS build. (https://download.qnap.com/QPKG/CF64_0.1-1114.qpkg.zip)
• Starting from QTS 4.3.4, QNAP NAS devices no longer support creating storage pools or static volumes using NVMe PCIe/M.2 SSDs. However, this limitation does not apply to the SSDs installed in built-in M.2 slots or on QM2 expansion cards.
• Below are the kernel versions for NAS models that are supported by QTS 4.3.4: Kernel 3.4.6: TS-x69, TS-x69U, TS-x69L.

Other Changes

• After evaluating both security risks and user needs, QNAP has decided to retain support for allowing guest users to view and access shared folders to facilitate file sharing. However, to ensure your system security, QNAP recommends updating QTS to the latest version to benefit from new features and security updates.