New in Firefox X.Y vs Requires Gecko W.Z

[David Burrowes (柏大衛)]

I'm noting that on pages like: https://developer.mozilla.org/en/DOM/element
there are annotations that say "Requires Gecko 1.9" and others that
say "New in Firefox 3". I don't understand why there are two systems
for noting where these features are available.

To me, this seems to say that (say) "children", which says "Requires
Gecko 1.9", is available in everything that uses Gecko, but for others
(e.g. "childElementCount") is only in Firefox. Yet, when I click on
these, they all take me to pages that start with a statement of which
version of Gecko they are available in.

So, why are there two notation systems on these documentation pages?

Thanks!

David

[Sheppy]

I'm noting that on pages like:  https://developer.mozilla.org/en/DOM/element
there are annotations that say "Requires Gecko 1.9" and others that
say "New in Firefox 3".  I don't understand why there are two systems
for noting where these features are available.

The "New in Firefox X" banner is intended only for use on items that
apply solely to Firefox. In reality, there are cases where it is used
incorrectly, and we try to fix them as we notice them, but there are
plenty of them out there. If you see one, feel free to fix it.

Sheppy