diff --git a/packages/babel-core/src/parser/util/missing-plugin-helper.ts b/packages/babel-core/src/parser/util/missing-plugin-helper.ts
index 6847a889060d..462bf6d69e81 100644
--- a/packages/babel-core/src/parser/util/missing-plugin-helper.ts
+++ b/packages/babel-core/src/parser/util/missing-plugin-helper.ts
@@ -106,16 +106,6 @@ const pluginNameMap: Record<
       url: "https://github.com/babel/babel/tree/main/packages/babel-plugin-syntax-record-and-tuple",
     },
   },
-  regexpUnicodeSets: {
-    syntax: {
-      name: "@babel/plugin-syntax-unicode-sets-regex",
-      url: "https://github.com/babel/babel/blob/main/packages/babel-plugin-syntax-unicode-sets-regex/README.md",
-    },
-    transform: {
-      name: "@babel/plugin-proposal-unicode-sets-regex",
-      url: "https://github.com/babel/babel/blob/main/packages/babel-plugin-proposalunicode-sets-regex/README.md",
-    },
-  },
   throwExpressions: {
     syntax: {
       name: "@babel/plugin-syntax-throw-expressions",
@@ -289,6 +279,16 @@ if (!process.env.BABEL_8_BREAKING) {
         url: "https://github.com/babel/babel/tree/main/packages/babel-plugin-transform-private-property-in-object",
       },
     },
+    regexpUnicodeSets: {
+      syntax: {
+        name: "@babel/plugin-syntax-unicode-sets-regex",
+        url: "https://github.com/babel/babel/blob/main/packages/babel-plugin-syntax-unicode-sets-regex/README.md",
+      },
+      transform: {
+        name: "@babel/plugin-proposal-unicode-sets-regex",
+        url: "https://github.com/babel/babel/blob/main/packages/babel-plugin-proposalunicode-sets-regex/README.md",
+      },
+    },
   });
 }
 
diff --git a/packages/babel-helper-create-regexp-features-plugin/src/features.ts b/packages/babel-helper-create-regexp-features-plugin/src/features.ts
index bcd2a061d297..7d7b5d4f1f0f 100644
--- a/packages/babel-helper-create-regexp-features-plugin/src/features.ts
+++ b/packages/babel-helper-create-regexp-features-plugin/src/features.ts
@@ -3,6 +3,7 @@ export const FEATURES = Object.freeze({
   dotAllFlag: 1 << 1,
   unicodePropertyEscape: 1 << 2,
   namedCaptureGroups: 1 << 3,
+  // Not used, for backward compatibility with syntax-unicode-sets-regex
   unicodeSetsFlag_syntax: 1 << 4,
   unicodeSetsFlag: 1 << 5,
   duplicateNamedCaptureGroups: 1 << 6,
diff --git a/packages/babel-helper-create-regexp-features-plugin/src/util.ts b/packages/babel-helper-create-regexp-features-plugin/src/util.ts
index 7396baf3219a..94a00cc66365 100644
--- a/packages/babel-helper-create-regexp-features-plugin/src/util.ts
+++ b/packages/babel-helper-create-regexp-features-plugin/src/util.ts
@@ -33,9 +33,7 @@ export function generateRegexpuOptions(
 
   return {
     unicodeFlag: feat("unicodeFlag"),
-    unicodeSetsFlag:
-      feat<Experimental>("unicodeSetsFlag") ||
-      feat<Experimental>("unicodeSetsFlag_syntax", "parse"),
+    unicodeSetsFlag: feat<Experimental>("unicodeSetsFlag") || "parse",
     dotAllFlag: feat("dotAllFlag"),
     unicodePropertyEscapes: feat("unicodePropertyEscape"),
     namedGroups: feat("namedCaptureGroups") || featDuplicateNamedGroups(),
diff --git a/packages/babel-parser/src/tokenizer/index.ts b/packages/babel-parser/src/tokenizer/index.ts
index edd0c7649677..8750a3cf808c 100644
--- a/packages/babel-parser/src/tokenizer/index.ts
+++ b/packages/babel-parser/src/tokenizer/index.ts
@@ -57,7 +57,6 @@ const VALID_REGEX_FLAGS = new Set([
   charCodes.lowercaseY,
   charCodes.lowercaseU,
   charCodes.lowercaseD,
-  // This is only valid when using the regexpUnicodeSets plugin
   charCodes.lowercaseV,
 ]);
 
@@ -1100,8 +1099,6 @@ export default abstract class Tokenizer extends CommentsParser {
       // @ts-expect-error VALID_REGEX_FLAGS.has should accept expanded type: number
       if (VALID_REGEX_FLAGS.has(cp)) {
         if (cp === charCodes.lowercaseV) {
-          this.expectPlugin("regexpUnicodeSets", nextPos());
-
           if (mods.includes("u")) {
             this.raise(Errors.IncompatibleRegExpUVFlags, { at: nextPos() });
           }
diff --git a/packages/babel-parser/src/typings.d.ts b/packages/babel-parser/src/typings.d.ts
index 3ed4a5c70b59..7eded8ebc8b6 100644
--- a/packages/babel-parser/src/typings.d.ts
+++ b/packages/babel-parser/src/typings.d.ts
@@ -34,7 +34,7 @@ export type Plugin =
   | "partialApplication"
   | "placeholders"
   | "privateIn" // Enabled by default
-  | "regexpUnicodeSets"
+  | "regexpUnicodeSets" // Enabled by default
   | "throwExpressions"
   | "topLevelAwait"
   | "v8intrinsic"
diff --git a/packages/babel-parser/test/fixtures/experimental/_no-plugin/regexp-unicode-sets/input.js b/packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/basic/input.js
similarity index 100%
rename from packages/babel-parser/test/fixtures/experimental/_no-plugin/regexp-unicode-sets/input.js
rename to packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/basic/input.js
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/basic/output.json b/packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/basic/output.json
similarity index 100%
rename from packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/basic/output.json
rename to packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/basic/output.json
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/uv-error/input.js b/packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/uv-error/input.js
similarity index 100%
rename from packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/uv-error/input.js
rename to packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/uv-error/input.js
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/uv-error/output.json b/packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/uv-error/output.json
similarity index 100%
rename from packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/uv-error/output.json
rename to packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/uv-error/output.json
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/vu-error/input.js b/packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/vu-error/input.js
similarity index 100%
rename from packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/vu-error/input.js
rename to packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/vu-error/input.js
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/vu-error/output.json b/packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/vu-error/output.json
similarity index 100%
rename from packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/vu-error/output.json
rename to packages/babel-parser/test/fixtures/es2024/regexp-unicode-sets/vu-error/output.json
diff --git a/packages/babel-parser/test/fixtures/experimental/_no-plugin/regexp-unicode-sets/options.json b/packages/babel-parser/test/fixtures/experimental/_no-plugin/regexp-unicode-sets/options.json
deleted file mode 100644
index a9aa871d03c7..000000000000
--- a/packages/babel-parser/test/fixtures/experimental/_no-plugin/regexp-unicode-sets/options.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "throws": "This experimental syntax requires enabling the parser plugin: \"regexpUnicodeSets\". (1:4)"
-}
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/basic/input.js b/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/basic/input.js
deleted file mode 100644
index 04ee6ccf77ed..000000000000
--- a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/basic/input.js
+++ /dev/null
@@ -1 +0,0 @@
-/a/v;
diff --git a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/options.json b/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/options.json
deleted file mode 100644
index a027295978f0..000000000000
--- a/packages/babel-parser/test/fixtures/experimental/regexp-unicode-sets/options.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "plugins": ["regexpUnicodeSets"]
-}
diff --git a/packages/babel-parser/typings/babel-parser.d.ts b/packages/babel-parser/typings/babel-parser.d.ts
index d80fff653c30..dc3623bc2d35 100644
--- a/packages/babel-parser/typings/babel-parser.d.ts
+++ b/packages/babel-parser/typings/babel-parser.d.ts
@@ -38,7 +38,7 @@ type Plugin =
   | "partialApplication"
   | "placeholders"
   | "privateIn" // Enabled by default
-  | "regexpUnicodeSets"
+  | "regexpUnicodeSets" // Enabled by default
   | "throwExpressions"
   | "topLevelAwait"
   | "v8intrinsic"