Add missing @since tags

api/src/main/java/jakarta/el/OptionalELResolver.java

diff --git a/api/src/main/java/jakarta/el/OptionalELResolver.java b/api/src/main/java/jakarta/el/OptionalELResolver.java
index c9342df..5cb6d16 100644
--- a/api/src/main/java/jakarta/el/OptionalELResolver.java
+++ b/api/src/main/java/jakarta/el/OptionalELResolver.java
@@ -26,6 +26,8 @@
  * This resolver handles base objects that are instances of {@link Optional}.
  * <p>
  * This resolver is always a read-only resolver since {@link Optional} instances are immutable.
+ * 
+ * @since Jakarta Expression Language 6.0
  */
 public class OptionalELResolver extends ELResolver {
 

api/src/main/java/jakarta/el/RecordELResolver.java

diff --git a/api/src/main/java/jakarta/el/RecordELResolver.java b/api/src/main/java/jakarta/el/RecordELResolver.java
index 4270953..8c2e8e5 100644
--- a/api/src/main/java/jakarta/el/RecordELResolver.java
+++ b/api/src/main/java/jakarta/el/RecordELResolver.java
@@ -32,6 +32,8 @@
  * <p>
  * {@code ELResolver}s are combined together using {@link CompositeELResolver}s to define rich semantics for evaluating
  * an expression. See the javadocs for {@link ELResolver} for details.
+ * 
+ * @since Jakarta Expression Language 6.0
  */
 public class RecordELResolver extends ELResolver {