Thank you, Madam Chair.
The change was proposed in response to concerns that were raised by indigenous groups. One of the concerns expressed is that the notion of traditional knowledge seemed fixed in time, whereas the fact is their knowledge evolved over time. While it may be based on their traditional way of life, it doesn't necessarily mean that this knowledge must have originated from time immemorial.
That is the gist of the amendment proposed here. I'm not sure if you have any more questions on that.