1.10.1

https://www.w3.org/TR/2022/WD-css-text-decor-4-20220504/

after/syntax/css/selectors-4.vim

@@ -1,10 +1,12 @@
 syn match cssSelectorOp "[|]"
-syn keyword cssPseudoClassId contained scope current past future default valid required optional blank playing paused
+syn keyword cssPseudoClassId contained scope current past future default valid required optional blank playing paused defined modal fullscreen seeking buffering stalled muted autofill
 syn match cssPseudoClassId contained "\<\(any\|local\)-link\>"
 syn match cssPseudoClassId contained "\<read-\(only\|write\)\>"
 syn match cssPseudoClassId contained "\<placeholder-shown\>"
 syn match cssPseudoClassId contained "\<\(in\|out-of\)-range\>"
-syn match cssPseudoClassId contained "\<user-invalid\>"
+syn match cssPseudoClassId contained "\<user-\(invalid\|valid\)\>"
 syn match cssPseudoClassId contained "\<target-within\>"
 syn match cssPseudoClassId contained "\<focus-\(within\|visible\)\>"
+syn match cssPseudoClassId contained "\<picture-in-picture\>"
+syn match cssPseudoClassId contained "\<volume-locked\>"
 syn region cssPseudoClassLang matchgroup=cssPseudoClassId start=":\(is\|dir\|local-link\|current\|nth\(-last\)\=-col\|has\|where\)(" end=")" oneline

after/syntax/css/text-4.vim

@@ -3,6 +3,7 @@ syn match cssTextProp contained "\<text-\(wrap\|spacing\|group-align\)\>"
 syn match cssTextProp contained "\<wrap-\(before\|after\|inside\)\>"
 syn match cssTextProp contained "\<hyphenate-\(character\|limit-\(zone\|chars\|lines\|last\)\)\>"
 syn match cssTextProp contained "\<line-padding\>"
+syn match cssTextProp contained "\<word-boundary-\(detection\|expansion\)\>"
 syn keyword cssTextAttr contained spread punctuation
 syn match cssTextAttr contained "\<preserve-\(breaks\|spaces\)\>"
 syn match cssTextAttr contained "\<trim-inner\>"
@@ -14,3 +15,4 @@ syn match cssTextAttr contained "\<\(trim\|space\)-\(start\|end\|adjacent\)\>"
 syn match cssTextAttr contained "\<space-first\>"
 syn match cssTextAttr contained "\<no-compress\>"
 syn match cssTextAttr contained "\<ideograph-\(alpha\|numeric\)\>"
+syn match cssTextAttr contained "\<ideographic-space\>"

test/test.css

@@ -869,7 +869,18 @@ mask {
 .selectors-4:playing,
 .selectors-4:paused,
 .selectors-4:has(> img),
-.selectors-4:where(:not(:hover)) {
+.selectors-4:where(:not(:hover)),
+.selectors-4:defined,
+.selectors-4:modal,
+.selectors-4:fullscreen,
+.selectors-4:picture-in-picture,
+.selectors-4:seeking,
+.selectors-4:buffering,
+.selectors-4:stalled,
+.selectors-4:muted,
+.selectors-4:volume-locked,
+.selectors-4:autofill,
+.selectors-4:user-valid {
 	display: auto;
 }
 
@@ -1074,6 +1085,8 @@ view {
 	text-group-align: auto;
 	line-padding: auto;
 	text-spacing: auto;
+	word-boundary-detection: auto;
+	word-boundary-expansion: auto;
 	display: preserve-breaks;
 	display: preserve-spaces;
 	display: trim-inner;
@@ -1095,6 +1108,7 @@ view {
 	display: ideograph-alpha;
 	display: ideograph-numeric;
 	display: punctuation;
+	display: ideographic-space;
 }
 
 .text-decor-3 {