New update to add support for the X20 and X15 mice.  No other release notes.
 
EVGA UNLEASH RGB v1.0.10

• Adds support for Z12 Gaming Keyboard and X20/X15 Gaming Mice.

 
 
As always, please let us know if you encounter any issues or problems.  Feedback is appreciated, including places where we can improve, but please create a separate thread for those.

Is there a change log for the X17 firmware that comes with EVGA UNLEASH RGB v1.0.10?

ForSerious
Is there a change log for the X17 firmware that comes with EVGA UNLEASH RGB v1.0.10?

Not with this version of the driver, to my knowledge.  The last firmware update for X17 was with 1.0.8, which updated the firmware to disable debounce clicking.  There are a few minor firmware updates for X20, but not sure if any of the mice actually need this since they only just released.

Well it updated my X17 to 1.74. (I don't remember if that's what it was at before.)

EVGATech_LeeM
...which updated the firmware to disable debounce clicking.

Awe man. I asked because that very update seems to make my mouse miss clicks because it had no issue with debounce clicking. I've tried a bunch of things to install the firmware before it, but nothing worked.
 

Is there a way to bind multiple keys to one but e.g. 'Left Shift+8'?
I know I can do it with a macro.  However, no matter what I do there is a lot of lag between the button press on the mouse, and the input happening in game.
If not, hopefully that can be added in future updates.

After recording the macro, you can change the timings between events. I seem to remember the lowest option being 20ms, but with this latest update, I've been able to set the times to 0ms. Just be sure and hit apply a bunch and close it and open it to make sure the settings saved.

Like KarnF91 stated, creating a macro (in my case, Control-8) then assigning that to a button, there is a lag between when you press the button and when the macro gets executed.  I thought by modifying each step to 0ms would solve the problem, but it doesn't.

Humm okay. I agree that there is a delay. Maybe like 100ms? I think that's for all macros though.

Its why I brought it up.  Other programs allow for shift, ctrl, alt + 'key' to be programmed.  It's be nice to do it with this as well.

If your NEW X series mouse is not being detected by the Unleash RGB software!!!
An easy way to fix this and determine if a bios update is required (typically a problem for new user/buyer because the mouse has old bios installed)
 >>>   Simply connect the mouse to a USB port via the charging cable.. this will trigger a driver and bios update if available, after this occurs.. your mouse should be detected by the Unleash RGB software. Hope this helps :-)