Have crafting mod tags "chaos" and "poison" been merged in 3.13 since 3.11 (Harvest)?

With reintroduction of Harvest in Ritual I suspect that something has changed in tags since 3.11. But i just can't remember.

The question is - now, when I use harvest craft receipt with chaos mod there are a lot of poison mods tagged as "chaos".

But as far as I remember (not sure if i remember it correctly) in 3.11 (Harvest League) using chaos do not roll poison mods. I only can suspect it.

Can anyone who confirm that something about mods has changed?

for example, suffix "Of Venom" listed on "Craft of Exile" has four tags:
"Poison", "Damage", "Chaos", "Ailment"

but in game the same suffix has only three tags:
"Damage", "Chaos", "Ailment"

And i am quite sure that something about harvest crafting has changed.
And question is - where to find this changes? I tried to google it, but in vane, so help will be appreciated.

Bump