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npm · #3280 most downloaded on npm
A list of CSS features and their positions in the process of becoming implemented web standards
Last release 4 days ago
30 Sep 2026
Ships fairly regularly
a new release about every 4 weeks
Nearly every release is documented
notes for 60 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
9 years old
95 releases · first in 2017
Updated @mdn/browser-compat-data to 8.1.3
custom-functions@mdn/browser-compat-data to 8.1.3Updated @mdn/browser-compat-data to 8.0.13
private-rulesymbols-functions@mdn/browser-compat-data to 8.0.13One column per quarter.
Added property-rule-optional-descriptors
fit-tolerance-propertyproperty-rule-optional-descriptorsAdded container-rule-prelude-list
container-rule-prelude-listimage-functionUpdated @mdn/browser-compat-data to 7.3.13
@mdn/browser-compat-data to 7.3.13Added font-width-property
font-width-propertyUpdated @mdn/browser-compat-data to 7.2.5
@mdn/browser-compat-data to 7.2.5Updated @mdn/browser-compat-data to 7.2.3
@mdn/browser-compat-data to 7.2.3mixinsUpdated @mdn/browser-compat-data to 7.2.2
@mdn/browser-compat-data to 7.2.2property-rule-prelude-listsyntax-descriptor-syntax-productionUpdate system-ui-font-family polyfill url
system-ui-font-family polyfill urlRename position-area to position-area-property
position-area to position-area-property- Added position-area
position-areaUpdated @mdn/browser-compat-data to 7.1.23
@mdn/browser-compat-data to 7.1.23Add polyfill for contrast-color-function
contrast-color-functionUpdated @mdn/browser-compat-data to 7.1.7
@mdn/browser-compat-data to 7.1.7Added color-function-display-p3-linear
color-function-display-p3-linearalpha-function@mdn/browser-compat-data to 6.1.4Updated @mdn/browser-compat-data to 6.0.25
@mdn/browser-compat-data to 6.0.25Added color-mix-variadic-function-arguments
color-mix-variadic-function-argumentsUpdated @mdn/browser-compat-data to 6.0.17
@mdn/browser-compat-data to 6.0.17Updated @mdn/browser-compat-data to 6.0.5
@mdn/browser-compat-data to 6.0.5Updated @mdn/browser-compat-data to 5.7.1
@mdn/browser-compat-data to 5.7.1Updated @mdn/browser-compat-data to 5.6.22 (patch)
@mdn/browser-compat-data to 5.6.22 (patch)Updated @mdn/browser-compat-data to 5.6.20 (patch)
@mdn/browser-compat-data to 5.6.20 (patch)Added sign-functions plugin link
sign-functions plugin link- Added random-function
random-functionUpdated @mdn/browser-compat-data to 5.6.6 (minor)
@mdn/browser-compat-data to 5.6.6 (minor)Updated @mdn/browser-compat-data to 5.5.51 (patch)
@mdn/browser-compat-data to 5.5.51 (patch)Updated @mdn/browser-compat-data to 5.5.37 (patch)
content-alt-text@mdn/browser-compat-data to 5.5.37 (patch)Updated @mdn/browser-compat-data to 5.5.29 (patch)
@mdn/browser-compat-data to 5.5.29 (patch)Updated @mdn/browser-compat-data to 5.5.26 (patch)
@mdn/browser-compat-data to 5.5.26 (patch)Added web-feature identifiers for some features
contrast-color-functionweb-feature identifiers for some featuresMIT-0 to align with postcss-preset-envcolor-contrastcolor-mod-functioncustom-property-setsgray-functionmatches-pseudo-classUpdated @mdn/browser-compat-data to 5.5.14 (patch)
@mdn/browser-compat-data to 5.5.14 (patch)mixed_type_parameters into account for most color features.Updated @mdn/browser-compat-data to 5.5.11 (patch)
@mdn/browser-compat-data to 5.5.11 (patch)caniuse-lite to 1.0.30001589 (patch)Added Stage 2 light-dark-function
light-dark-functionAdded interoperable_at to make it possible to calculate the Baseline status of a feature
interoperable_at to make it possible to calculate the Baseline status of a feature@mdn/browser-compat-data to 5.5.2caniuse-lite to 1.0.30001571interoperable_at to make it possible to calculate the Baseline status of a feature@mdn/browser-compat-data to 5.5.2 (patch)caniuse-lite to 1.0.30001571 (patch)Updated @mdn/browser-compat-data to 5.4.5 (patch)
@mdn/browser-compat-data to 5.4.5 (patch)caniuse-lite to 1.0.30001568 (patch)Added: Stage 2 logical-overflow
logical-overflowlogical-overscroll-behavior@mdn/browser-compat-data to 5.3.25 (patch)caniuse-lite to 1.0.30001553 (patch)Updated @mdn/browser-compat-data to 5.3.21 (patch)
gamut-mapping@mdn/browser-compat-data to 5.3.21 (patch)Updated @mdn/browser-compat-data to 5.3.20 (patch)
@mdn/browser-compat-data to 5.3.20 (patch)caniuse-lite to 1.0.30001546 (patch)Updated @mdn/browser-compat-data to 5.3.14 (patch)
@mdn/browser-compat-data to 5.3.14 (patch)caniuse-lite to 1.0.30001525 (patch)Updated @mdn/browser-compat-data to 5.3.11 (patch)
@mdn/browser-compat-data to 5.3.11 (patch)caniuse-lite to 1.0.30001522 (patch)Updated @mdn/browser-compat-data to 5.3.5 (patch)
src-function@mdn/browser-compat-data to 5.3.5 (patch)caniuse-lite to 1.0.30001517 (patch)Added: Stage 2 relative-color-syntax
relative-color-syntax@mdn/browser-compat-data to 5.2.57 (patch)caniuse-lite to 1.0.30001487 (patch)color-contrast is now Stage 1container-queries is now Stage 2font-format-keywords is now Stage 2nesting-rules is now Stage 2overscroll-behavior-property is now Stage 2Updated @mdn/browser-compat-data to 5.2.49 (patch)
@mdn/browser-compat-data to 5.2.49 (patch)caniuse-lite to 1.0.30001477 (patch)Updated support data for media-query-ranges
media-query-rangesUpdated support data for color-mix
color-mixgradients-interpolation-methodFixed potentially old generated files (patch)
Added: Stage 2 gradients-interpolation-method
gradients-interpolation-method@mdn/browser-compat-data to 5.2.45 (patch)caniuse-lite to 1.0.30001469 (patch)- Added: Links to plugins.
- Added: Stage 2 logical-resize
logical-resizeAdded: Stage 2 logical-viewport-units
logical-viewport-units@mdn/browser-compat-data to 5.2.29 (patch)caniuse-lite to 1.0.30001445 (patch)Updated @mdn/browser-compat-data to 5.2.26 (patch)
@mdn/browser-compat-data to 5.2.26 (patch)caniuse-lite to 1.0.30001442 (patch)postcss to 8.4.21 (patch)Added: Stage 2 media-queries-aspect-ratio-number-values
media-queries-aspect-ratio-number-values@mdn/browser-compat-data to 5.2.19 (patch)caniuse-lite to 1.0.30001434 (patch)Added: Stage 2 scope-pseudo-class
scope-pseudo-class@mdn/browser-compat-data to 5.2.12 (patch)caniuse-lite to 1.0.30001430 (patch)postcss to 8.4.18 (patch)postcss-preset-env to 7.8.2 (patch)stylelint to 14.14.1 (patch)Updated @mdn/browser-compat-data to 5.2.6 (patch)
@mdn/browser-compat-data to 5.2.6 (patch)browserslist to 4.21.4 (patch)caniuse-lite to 1.0.30001418 (patch)Updated @mdn/browser-compat-data to 5.1.8 (patch)
@mdn/browser-compat-data to 5.1.8 (patch)caniuse-lite to 1.0.30001382 (patch)postcss-preset-env to 7.8.0 (minor)Updated most features to use data from @mdn/browser-compat-data
environment-variables to mean custom environment variables. No browsers currently support this feature. (breaking)nested-calc.text-decoration-shorthand.float-clear-logical-values.@mdn/browser-compat-data" to 5.1.8 (minor)browserslist to 4.21.3 (minor)caniuse-lite to 1.0.30001376 (patch)Updated case-insensitive-attributes plugin's url
case-insensitive-attributes plugin's urlcustom-media-queries plugin's urlcustom-selectors plugin's urlnot-pseudo-class plugin's urltrigonometric-functions plugin as bundled by PostCSS Preset Env@mdn/browser-compat-data to 5.0.1 (major)caniuse-lite to 1.0.30001346 (patch)postcss-preset-env to 7.7.0 (minor)Added polyfills to cascade-layer and trigonometric-functions.
cascade-layer and trigonometric-functions.Added polyfills to unset-value and stepped-value-functions (patch)
unset-value and stepped-value-functions (patch)Your coding agent can read these notes before it upgrades. Set up the MCP server →