Important Notes

• For instructions on updating QES to the latest version, open the following link. https://www.qnap.com/en/how-to/faq/article/my-nas-is-running-an-older-version-of-qes-can-i-update-to-the-latest-version-directly-what-sequence-should-i-follow-when-updating-qes
• For release note history, open the following link. https://www.qnap.com/en/releasenotes_qes/

New Features

• Added support for the TL-R1620Sdc storage enclosure.

Fixed Issues

• iSCSI connection would be interrupted when users replaced disks in a storage pool.
• The NAS would sometimes automatically restart under certain circumstances.
• QES would display the mode of a port trunking group as "STANDALONE" instead of "LACP" after users created a VLAN for the trunking interfaces.
• Users could not view the previous versions of a mounted shared folder in Windows after updating QES to certain versions.
• A database error would prevent users from accessing QES via a web browser after users updated QES to ES-SINGLE_20210125-2.1.1.0665.
• Users could not extract files from an archive downloaded from the NAS using the built-in extractor in Windows 10.
• Dashboard could not display online domain users.
• Users could not slightly resize an iSCSI LUN if the increased space was too small by comparison with the original size.
• The ES1686dc NAS could not detect an installed HGST HUH721010AL4200 disk.
• Fixed some minor issues.