The newest version is here:

https://docs.espressif.com/projects/arduino-esp32/en/latest/api/ledc.html

But I think the readthedocs version is getting quite out of date now... it might be from 2023 only?

I missed a feature, because when I searched, I was brought to the old readthedocs version of the API docs, not the most up to date one.

I suggest ESP32 to update it (readthedocs version), or if it's too much trouble, redirect it or remove it?