We recently released Engine 3.5.0 with a handful of bug fixes and changes in OS support.

Download it here

New Features

• OS X 10.11 El Capitan support has been added.
• The SteelSeries Engine frontend now runs on Electron.
• Performance loading device config windows is improved.
• The GameSense SDK now has routines for deleting games and game events.

Bug Fixes

• Fixed deadzones on the Stratus XL for Windows not being set correctly.
• Fixed M800 games getting stuck when activated.
• Fixed Launch Config key bindings not being reset correctly when configs are deleted.
• Fixed crash when trying to set playback options on CPI toggle bindings.

New Firmware

• Apex M800 - Fixed a rare issue where keyboard keys stop getting sent after a period of time on some setups.

Deprecated Support

• OS X 10.7 Lion is no longer supported. Users still on 10.7 should either upgrade OS X or stay on SteelSeries Engine 3.4.4.1.
• Windows XP does not work in 3.5.0, we are investigating possible fixes for it.