Have you ever wondered what happened after CSS3? It’s common knowledge that we never saw CSS4 come after it, yet we have a plethora of new features that have no similar way of defining when they were introduced. The W3C CSS-Next community group is actively searching for better approaches for how we describe the evolution of CSS over time and identify feature sets as effectively as we did with CSS3 way back in 2009 — and you can help.

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Since the release of CSS3 in 2009, the landscape of Cascading Style Sheets (CSS) has evolved dramatically with numerous new features. However, the terminology around CSS versions has lagged, leading to confusion in the developer community. The CSS-Next community, comprising members from the W3C's CSS Working Group and other web enthusiasts, aims to redefine CSS eras to better reflect modern capabilities. By labeling features that have shipped since 2013 as part of CSS4 and the latest features as CSS5, the group hopes to simplify learning and teaching CSS while providing a shared understanding of its evolution. They encourage community feedback and participation to help shape the future of CSS.

It’s Time To Talk About “CSS5” — Smashing Magazine

<p>I’m very curious how public perception around the categorization will be. Watching the CSS Working group go through the exercise was educational.</p>
