Supported operating system:

Windows XP 32-bit
Windows XP 64-bit
Windows Vista 32-bit
Windows Vista 64-bit
Windows 7 32-bit
Windows 7 64-bit
Windows 8 32-bit
Windows 8 64-bit
Windows 8.1 32-bit
Windows 8.1 64-bit
Windows 10 32-bit
Windows 10 64-bit

Release note:
SteelSeries ENGINE 3.4.4 For Windows released on 8th Sep 2015.

We recently released Engine 3.4.4 with a bunch of bug fixes, and a couple of new devices. Let's look at what's new.

New devices supported:

Apex 300
Apex 350
Rival 300
Siberia 650
Siberia 150

Bug Fixes:

Fixed an issue where the SteelSeries tray icon would continue to run after uninstalling the Engine on Mac.
Fixed an issue where a device's default color would flash when changing its settings if ColorShift was active.
Fixed an issue with mouse button playback in specific cases for the Rival and Sensei Wireless.
Fixed an issue with cloud profiles where devices hidden on a different computer would cause devices to be removed from the gear list even if they were connected.
Fixed an issue with the display of ColorShift colors in the Engine client for the Apex keyboard.
Fixed a conflict between application detection and GameSense on MSI GE62 and GE72 laptops.
Fixed an issue where the Sensei Wireless could cause the Engine client to become unresponsive.
Deleted configs will now be automatically removed from associated Launch Config bindings.
Fixed an issue where GameSense was not working with CS:GO or Dota 2 on some computers

Supported Devices:
SteelSeries Apex 300
SteelSeries Apex 350
SteelSeries Apex M800 Dota 2 Edition
SteelSeries Apex Mechanical Gaming Keyboard
SteelSeries Dota 2 Gaming Mouse
SteelSeries Gaming Keyboard
SteelSeries Heroes of the Storm Gaming Mouse
SteelSeries HID Device
SteelSeries Kinzu v3
SteelSeries Rival
SteelSeries Rival 100
SteelSeries Rival 100 Dota 2 Edition
SteelSeries Rival 100 WoT
SteelSeries Rival 300
SteelSeries Rival 500
SteelSeries Rival CS:GO Edition
SteelSeries Sensei Wireless
SteelSeries The Sims 4 Gaming Mouse