WordPress 6.7 is the first release in which the HTML API will support the full HTML specification (with some very narrow exceptions). In addition, it will be possible to normalize an input document, and to modify most of the text contained in it.
We’ll celebrate this important milestone by taking a closer look at those newly available features, and by exploring the potential that they will unlock for WordPress Core developers as well as extenders.
I highly recommend participants bring some basic understanding of the HTML API, e.g. by watching this excellent presentation by Dennis Snell from WCEU 2024.