189692 2018-09-17 23:59:37 -0700 Implement CSS Custom Properties and Values API Level 1 2023-07-04 19:49:07 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 189694 189764 189819 189909 190038 190039 190303 192324 192325 210963 247212 248871 249027 249071 249088 249096 249107 249127 249161 249216 249293 249302 249305 249465 249554 249579 249763 249774 249981 250446 250448 250556 250567 250571 250703 250898 251084 251141 251517 251575 251672 189834 1 justin_michaud webkit-unassigned 709922234 argyle bfulgham bramus chi187 cyb.ai.815 dino emilio graouts jonlee kngan koivisto kris kyle.bavender legacyazd nimajneb0905 rniwa simon.fraser webkit-bug-importer zalan oldest_to_newest 1460523 0 justin_michaud 2018-09-17 23:59:37 -0700 https://drafts.css-houdini.org/css-properties-values-api/ 1460526 1 justin_michaud 2018-09-18 00:06:49 -0700 <rdar://30061591> 1460653 2 simon.fraser 2018-09-18 11:07:43 -0700 You should make a patch for Source/WebCore/features.json to say this is "under development". 1869170 3 legacyazd 2022-05-16 01:56:05 -0700 This is a useful feature. See the Stack Overflow post: [animating gradients in CSS](https://stackoverflow.com/a/63848864/8583692) for a use case. Only Firefox (related bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1684605) and Safari has not yet implemented this. 1922871 4 koivisto 2023-01-04 09:19:38 -0800 This is enabled by default since <https://commits.webkit.org/258246@main> 1965046 5 chi187 2023-07-04 19:34:18 -0700 What is the stable version of Safari where this feature was shipped? Was it Safari 16.4? I want to update the https://ishoudinireadyyet.com table. 1965048 6 chi187 2023-07-04 19:49:07 -0700 Just found it in the 16.4 release notes (https://developer.apple.com/documentation/safari-release-notes/safari-16_4-release-notes)