QTS 4.3.6.1013 build 20190724 | Release Notes | QNAP (US)

United States / Canada - English
Join Community
Sign in

Product
OS
Solution
Support
eShop
About Us
Where To Buy

Storage

Networking

Expansion Accessories
- Cards & Adaptors

Surveillance
- Surveillance System

Tower NAS
- TS-h1277AFX
- TS-632X
- TS-432X
- View All
Short Depth Rackmount NAS
- TS-h765eU
- TS-433eU
- TS-855eU
- View All
Rackmount NAS
All-Flash NAS
Storage Accessories

Resources

Expand NAS Capacity
Expand PC/Server Capacity

Resources

QNAP-hosted Cloud
Cloud NAS
- QuTScloud for Public Cloud
- QuTScloud for Private Cloud

Unlock the Full Potential of QNAP Hybrid Cloud for Enterprise Applications

2.5GbE Switches
10GbE Switches
Full 10GbE Switches
PoE Switches
Managed Switches
Unmanaged Switches
Industrial-grade Switches
- QSW-IM3216-8S8T
- View All
25GbE Switches
- QSW-M5216-1T
- View All
100GbE Switches
- QSW-M7308R-4X
Smart Edge Switches
- QGD-1602
- QGD-1600
- QGD-1602P
- View All

Resources
- Product Comparison
- AMIZcloud Management Platform

SD-WAN Router
Wi-Fi 6 SD-WAN Router
- QHora-301W
- View All
Wired SD-WAN Router

Resources

Intel x86 Guardian Switches
Overview
- What is the Guardian Smart Edge Switches

More Than a Switch— Run Virtual Machines (VMs) on It

Guardian NDR Appliances
- QGD-1600
- QGD-1602
- QGD-1602P
- QGD-1600P
- View All
Overview
- What is the Guardian Cybersecurity NDR Appliances

How ADRA NDR Helped an Italian Engineering Firm Detect Hidden Threats

QuCPE Network Virtualization Premise Equipment
Virtualized IT Room Solutions
- Overview
- AMIZcloud Management Platform
More Apps
- QNE Application Store

Connect Storage Expansion Units
Expand My Storage
Add Network Ports
Add Wi-Fi Connectivity
- View All
Boost Performance
Customize Drive Usage
- QDA-UMP4A
- QDA-UMP4
- QDA-SA3
- View All
Wake on Lan Device
- QWU-100

Resources
- Product Comparison

QVR Surveillance Appliance
- QVP-41C
- QVP-21C
- View All
Video Surveillance System
- QVR Surveillance Solution
- QVR Pro Client

Resources

NAS
- OS
- APP

Networking
- OS
- APP

Surveillance
- VMS
- APP

Cloud Platform

QuTS hero

Uses the Linux kernel and ZFS file system.
- Overview
- h5.2 New Features
QTS

Uses the Linux kernel and ext4 file system.
QES

Dual-controller NAS operating system. Uses the FreeBSD kernel and ZFS file system.
- Overview
QuTScloud

Cloud NAS operating system. Deployable on public clouds and local hypervisors.

App Center
Mobile Apps
Client Utilities

Storage Management
Virtualization
Cloud
- HybridMount
- VJBOD Cloud
Backup
Productivity
- Qsync
- Qsirch
- Qfiling
- QmailAgent
Multimedia
Security
System Management
- Notification Center
- Q'center

View all (A-Z)
App Center
Mobile Apps

Switch OS

Simplifies L3 Lite and L2 network management and monitoring.
- Explore QSS
Router OS

Optimizes high-speed wired/wireless networks with advanced features like NAT, VPN, security, and SD-WAN.
- Explore QuRouter
QuCPE OS

Supports VNF, customizable SD-WAN, and more.
- Explore QNE Network

App Center
Mobile Apps
Client Utilities

Security
SD-WAN
- QuWAN
- Log in to QuWAN Orchestrator

App Center
Mobile Apps
Client Utilities

QVR Pro

Perpetual license, built-in 8 channels, expandable up to 128 channels.
- Learn More
- Plans & Pricing
QVR Elite

Subscription-based, built-in 2 channels, expandable up to 192 channels.
- Learn More
- FAQ: Which is right for you, Pro or Elite
Supports Third-Party Surveillance Systems

Integrates with Milestone & Nx VMS for a seamless connection
- Learn More

App Center
Mobile Apps
Client Utilities

Management
Smart Surveillance

App Center
Mobile Apps
Client Utilities

Device & Access Management
- AMIZcloud
- Organization Center

Log in to AMIZcloud

See AMIZcloud FAQ
Go cloud service portal
Sales Inquiries

Storage

Backup

Security

Cloud

Surveillance

Networking

Content Creation

Beginner’s Guide

Data Management
Business Application

From networking to storage—experience QNAP High Availability. See how

View all
Explore use cases
Sales Inquiries

Overview
- For Business
- For Home
Disaster Recovery
- Snapshots
- Zero Loss Failover
Source
- PC / Server
- VM
- NAS
- SaaS
- Email
- Google Photos
- QNAP x NAKIVO
- QNAP x Veeam
- Offline Backup (Airgap+)

Veeam®-Certified Storage: The Ultimate On-Premises Veeam® Backup Solution

View all
Explore use cases
Sales Inquiries

Overview
Featured Tool

Long-Term Data Archiving with Immutable Storage

Overview
Secure Storage
Immutable Storage

Cloud Services
Hybrid Cloud

QNAP-Hosted Cloud Storage – Get 16GB Free

View all
Sales Inquiries
Log in to myQNAPcloud

Overview
CMS Plans
- QVR Elite
- QVR Pro
Features
Tool
- Select a Surveillance NAS
- QVR Developer Portal

Best Video Surveillance Storage for Milestone XProtect and Nx Witness

View all
Explore use cases
Sales Inquiries

Overview
Featured Tool

Explore How ADRA NDR Helps Japanese Logistics Defend Against Targeted Ransomware

View all
Explore use cases
Sales Inquiries

Tailored for
- Content Creators
- Post-Production
Highlight

See How Creative Professionals Worldwide Use QNAP to Optimize Their Workflow

View all
Explore use cases
Sales Inquiries

Get Started
Recommended

Find Your Ideal NAS in One Minute with the NAS Selector

View all
Explore user cases
Sales Inquiries

Help
Product Security
Download
Technical Support
Compatibility List
Resources

Hardware
Software
- Buy License

About Us
Contact Us
- Sales Inquiries
- Office Locations
Follow Us
Legal
- Terms of Use
- Privacy Notice

Buy from QNAP
Global Distributors

Product
- Storage
- Networking
- Expansion Accessories
  - Cards & Adaptors
- Surveillance
  - Surveillance System
OS
- NAS
  - OS
  - APP
- Networking
  - OS
  - APP
- Surveillance
  - VMS
  - APP
- Cloud Platform
Solution
- Storage
- Backup
- Security
- Cloud
- Surveillance
- Networking
- Content Creation
- Beginner’s Guide
Support
eShop
About Us
Where To Buy

United States / Canada - English
Join Community
Sign in

Software Store
Warranty
Service Portal
Account Center

QTS
QuTS hero
QuTScloud
QSS
QuWAN Orchestrator
- 2.8
- 2.7
- All Versions
QuRouter
- 2.6
- 2.5
- All Versions
QNE Network
- 1.0.6
- 1.0.5
- All Versions
QNE ADRA
- 1.0.6
- 1.0.5
- All Versions
QuWakeUp
- 1.4
- 1.3
- All Versions
QES
- 2.2.1
- 2.2.0
- All Versions
TAS
- 4.3.2
- 4.2.0
- All Versions
AfoBot
- 2.2.0
- 2.1.0
- All Versions
QVP
- 2.6.1
- 2.5.2
- All Versions
QuTS MEGA
- 1.0
- All Versions

QTS 4.3.6.1013 build 20190724

2019-08-22

Compatibility

TVS-951N.

Was this article helpful?

Yes. No.

Thank you for your feedback.

Discover More Features

List price

Choose specification

Show more Less

Get to know us
Online shop services
Support
Resources
Connect with us
Subscribe Newsletter

Copyright ©2025 QNAP Systems, Inc. All Rights Reserved.

Privacy Policy
Terms of Use
Information Security Policy

Choose Your Country or Region

Asia
Europe
America
Global
- Global / English

Hello ,

Welcome! You can start using a variety of QNAP member services.

Software Store
Get licenses for advanced features from our Software Store.
Warranty
If you need a longer warranty, you can purchase QNAP Extended Warranty Service (QEWS) for additional coverage.
Service Portal
If you have any further questions about QNAP products or solutions, contact customer service through the Service Portal.