Google upgrades Gmail's spam filters with RETVec, a text vectorizer that understands "adversarial text manipulations", like emojis and special characters (Ron Amadeo/Ars Technica)
https://arstechnica.com/gadgets/2023/12/gmails-ai-powered-spam-detection-is-its-biggest-security-upgrade-in-years/
http://www.techmeme.com/231204/p31#a231204p31