Before that, ’21st century skills’ was (still is?) a big topic. These essentially mean the literacies and framework of digital file manipulation, media editing, text formatting, social networking etc. Again, good stuff.
Larger Literacies
Hackable High Schools

That’s not what 21st century skills are and I’d argue that they include bigger ideas than a specific skill like learning to code. 21st century skills are “set of abilities that students need to develop in order to succeed in the information age” which include critical thinking, creativity, initiative and others.