Synology DS216+II

Made by Synology · firmware

The Synology DS216+II is a 2-bay desktop NAS with an Intel Celeron dual-core processor, hardware encryption, and support for 4K video transcoding, designed for home and small office users. It runs DiskStation Manager and offers real-time transcoding, DLNA media streaming, and automated backup with Btrfs file system support.

Product released: June 1, 2016

Latest firmware version

Version 7.4.1-90080 Update 1, released October 12, 2026

Last checked for updates: Oct 31, 2026 22:56 UTC

What's new in version 7.4.1-90080 Update 1

Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to update it manually. The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly. Your DSM is working fine without having to update. The system evaluates service statuses and system settings to determine whether it needs to update to this version. This update will restart the device. Fixed Issues Fixed security vulnerabilities.

firmware version history

LatestUpdate has tracked 20 versions of Synology DS216+II firmware, released between November 26, 2024 and October 12, 2026.

• Version 7.4.1-90080 Update 1 - October 12, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.3.2-86009 Update 5 - October 12, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.4.1-90080 - July 23, 2026: Important Note After installing this update, you will not be able to downgrade to a previous DSM version. This update will restart your Synology NAS. If auto u…
• Version 7.3.2-86009 Update 4 - June 30, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 9 - June 30, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.4-90075 - June 16, 2026: Important Note After installing this update, you will not be able to downgrade to a previous DSM version. This update will restart your Synology NAS. If auto u…
• Version 7.3.2-86009 Update 3 - March 19, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 8 - March 19, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.3.2-86009 Update 2 - March 16, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 7 - March 16, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 6 - January 30, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.3.2-86009 Update 1 - January 29, 2026: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.3.2-86009 - December 2, 2025: Important Note After installing this update, you will not be able to downgrade to a previous DSM version. This update will restart your Synology NAS. If auto u…
• Version 7.3.1-86003 Update 1 - November 18, 2025: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 5 - November 18, 2025: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.3.1-86003 - October 28, 2025: Important Note After installing this update, you will not be able to downgrade to a previous DSM version. This update will restart your Synology NAS. If auto u…
• Version 7.3-81180 - October 8, 2025: Important Note After installing this update, you will not be able to downgrade to a previous DSM version. This update will restart your Synology NAS. If auto u…
• Version 7.2.2-72806 Update 4 - July 24, 2025: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 3 - February 13, 2025: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…
• Version 7.2.2-72806 Update 2 - November 26, 2024: Important notes Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, p…

Update prediction

A firmware update is expected soon, between October 28, 2026 and December 25, 2026.

Synology typically releases firmware updates for this product approximately every 50 days.

Official Synology DS216+II product page