generated: '2026-09-07'
method: searched
source: >-
  https://www.w3.org/TR/css-2026/, https://www.w3.org/Style/CSS/current-work and
  https://github.com/w3c/css-validator/releases
summary: >-
  CSS publishes no single dated changelog, because CSS is not one document. The nearest
  first-party equivalents are recorded here: the annual CSS Snapshot, which is the dated
  statement of what "CSS" contains in a given year, and the dated release tags of the CSS
  Validation Service. Individual modules carry their own "Changes" section in each TR
  publication.
scheme: annual-snapshot
current_version: CSS Snapshot 2026
current_version_date: '2026-06-22'
entries:
  - version: CSS Snapshot 2026
    date: '2026-06-22'
    url: https://www.w3.org/TR/css-2026/
    kind: specification-snapshot
    breaking: false
    highlights:
      - The current W3C definition of the CSS specifications that together make up CSS.
  - version: CSS Snapshot 2025
    date: '2025-09-18'
    url: https://www.w3.org/TR/css-2025/
    kind: specification-snapshot
    breaking: false
  - version: CSS Snapshot 2024
    date: '2025-02-25'
    url: https://www.w3.org/TR/css-2024/
    kind: specification-snapshot
    breaking: false
  - version: CSS Snapshot 2023
    date: '2023-12-07'
    url: https://www.w3.org/TR/css-2023/
    kind: specification-snapshot
    breaking: false
  - version: cssval-20250226
    date: '2025-02-26'
    url: https://github.com/w3c/css-validator/releases/tag/cssval-20250226
    kind: service-release
    component: W3C CSS Validation Service
    breaking: false
  - version: cssval-20231124
    date: '2023-11-24'
    url: https://github.com/w3c/css-validator/releases/tag/cssval-20231124
    kind: service-release
    component: W3C CSS Validation Service
    breaking: false
  - version: cssval-20220105
    date: '2022-01-05'
    url: https://github.com/w3c/css-validator/releases/tag/cssval-20220105
    kind: service-release
    component: W3C CSS Validation Service
    breaking: false
per_module_changes:
  note: >-
    Every CSS module publication carries a "Changes" section listing what moved since the
    previous draft, and drafts.csswg.org rebuilds continuously from w3c/csswg-drafts. Those
    are the authoritative per-feature change records; there are 101 defining specifications
    and they are not aggregated here.
  index: https://www.w3.org/Style/CSS/current-work
  drafts: https://drafts.csswg.org/
  commits: https://github.com/w3c/csswg-drafts/commits/main