How long has scanner had dy/dx filter?

I was making a custom PID today in the scanner and noticed that there is now the option of dy/dx (transient) filtering. How long has it been there I don't remember it being anounced?

Its been in the beta software for about a year give or take.

What is "dy/dx (transient) filtering"?

It lets you filter based on the rate of change of something. For example you can filter out any data points when the throttle % is changing more than a certain amount. This gives you more consistent data as it filters out the transient conditions.

Thanks carneb. I just learned something.

Can somebody give us an example of how to use it? I haven't poked around in 2.23 that much.

I didn't know that had been added either. Awesome!