The directive is here https://www.europarl.europa.eu/RegData/etudes/BRIE/2021/6893...
The legal documents are here https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A...
For those of you already familiar with NIS, this update increases the scope to more industries (e.g. waste management) but also reduces the work needed in some cases.