Update ES2025 support status to README.md (#2125)

README.md

@@ -128,15 +128,22 @@ and many more.
 - ✔ `Promise.withResolvers`
 - ❌ Regular expression flag `/v`
 
-#### ECMAScript Stage 3 (no version yet)
+#### ECMAScript 2025
 
-- ✔ `Error.isError`
-- ✔ `Float16Array` (Requires NET 6 or higher)
+- ✔ 16-bit floating point numbers (float16), Requires NET 8 or higher, `Float16Array`, `Math.f16round()`
 - ✔ Import attributes
+- ❌ Iterator helper methods 
 - ✔ JSON modules
-- ✔ `Math.sumPrecise`
 - ✔ `Promise.try`
+- ❌ `RegExp.escape()`
+- ❌ Regular expression pattern modifiers (inline flags)
+- ❌ Duplicate named capture groups
 - ✔ Set methods (`intersection`, `union`, `difference`, `symmetricDifference`, `isSubsetOf`, `isSupersetOf`, `isDisjointFrom`)
+
+#### ECMAScript Stage 3 (no version yet)
+
+- ✔ `Error.isError`
+- ✔ `Math.sumPrecise`
 - ✔ `ShadowRealm`
 - ✔ `Uint8Array` to/from base64