Updated builds.

build/three.cjs

@@ -1081,7 +1081,7 @@ class Matrix3 {
 function arrayNeedsUint32(array) {
 	// assumes larger values usually on last
 	for (let i = array.length - 1; i >= 0; --i) {
-		if (array[i] > 65535) return true;
+		if (array[i] >= 65535) return true; // account for PRIMITIVE_RESTART_FIXED_INDEX, #24565
 	}
 
 	return false;

build/three.js

@@ -1083,7 +1083,7 @@
 	function arrayNeedsUint32(array) {
 		// assumes larger values usually on last
 		for (let i = array.length - 1; i >= 0; --i) {
-			if (array[i] > 65535) return true;
+			if (array[i] >= 65535) return true; // account for PRIMITIVE_RESTART_FIXED_INDEX, #24565
 		}
 
 		return false;

build/three.module.js

@@ -1392,7 +1392,7 @@ function arrayNeedsUint32( array ) {
 
 	for ( let i = array.length - 1; i >= 0; -- i ) {
 
-		if ( array[ i ] > 65535 ) return true;
+		if ( array[ i ] >= 65535 ) return true; // account for PRIMITIVE_RESTART_FIXED_INDEX, #24565
 
 	}