and just assumed it would be a new article as they hadn't previously published any actual bits of the chat.

https://www.theguardian.com/us-news/2025/mar/26/trump-signal-leak-new-messages

Their opening graph has two links both of which redirect to their own sodding page:

Newly shared Signal messages show Trump advisers discussed Yemen attack plans

The Atlantic releases more text from chat after Trump officials claimed none of it was ‘classified information’

The Atlantic magazine has published fresh messages from a group chat among top US officials in which they discuss specific operational details of plans to bomb Yemen, spurring leading Democrats to accuse Trump administration officials of lying to Congress by claiming the messages did not contain classified information.

Really useful, fraud.

This seems to be the article in question:

https://www.theatlantic.com/politics/archive/2025/03/signal-group-chat-attack-plans-hegseth-goldberg/682176/