Change log (fake)

changelog.md

CSS Release Notes - 2026

Most notable CSS features change log (unofficial)

🆕 Added

• @function : Define custom logic and reusable calculations directly inside your stylesheets.
• if() : Native conditions for dynamic, property-driven styling.
• sibling-index() : Real-time awareness of an element's rank among its siblings.
• attr() extension : Pass data directly from HTML attributes to any CSS property or unit.
• anchor position : Position any element relatively to any target.
• view transition : Native cinematic, app-like navigations.

🔧 Fixed

• "centrer verticalement" (for real)

🗑️ Deprecated

• z-index de valeurs 99999, 1000000 et 🤬💩☠️
• !important : remplacé par amende forfaitaire du W3C
• jQuery

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.