diff --git a/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientRequestContext.java b/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientRequestContext.java
index 357c35b..9f4a566 100644
--- a/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientRequestContext.java
+++ b/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientRequestContext.java
@@ -206,6 +206,7 @@
      * comma-separated header string contains value as a whole word.
      * @see #getHeaders()
      * @see #getHeaderString(String)
+     * @since 4.0
      */
     public boolean containsHeaderString(String name, String value, boolean ignoreCase);
 
diff --git a/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientResponseContext.java b/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientResponseContext.java
index 93a04a7..f9f2549 100644
--- a/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientResponseContext.java
+++ b/jaxrs-api/src/main/java/jakarta/ws/rs/client/ClientResponseContext.java
@@ -98,6 +98,7 @@
      * comma-separated header string contains value as a whole word.
      * @see #getHeaders()
      * @see #getHeaderString(String)
+     * @since 4.0
      */
     public boolean containsHeaderString(String name, String value, boolean ignoreCase);
 
diff --git a/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerRequestContext.java b/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerRequestContext.java
index 42ee509..c1efb79 100644
--- a/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerRequestContext.java
+++ b/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerRequestContext.java
@@ -238,6 +238,7 @@
      * comma-separated header string contains value as a whole word.
      * @see #getHeaders()
      * @see #getHeaderString(String)
+     * @since 4.0
      */
     public boolean containsHeaderString(String name, String value, boolean ignoreCase);
 
diff --git a/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerResponseContext.java b/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerResponseContext.java
index c5772bc..40f3e29 100644
--- a/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerResponseContext.java
+++ b/jaxrs-api/src/main/java/jakarta/ws/rs/container/ContainerResponseContext.java
@@ -128,6 +128,7 @@
      * comma-separated header string contains value as a whole word.
      * @see #getHeaders()
      * @see #getHeaderString(String)
+     * @since 4.0
      */
     public boolean containsHeaderString(String name, String value, boolean ignoreCase);
 
diff --git a/jaxrs-api/src/main/java/jakarta/ws/rs/core/HttpHeaders.java b/jaxrs-api/src/main/java/jakarta/ws/rs/core/HttpHeaders.java
index f77a334..7233a1c 100644
--- a/jaxrs-api/src/main/java/jakarta/ws/rs/core/HttpHeaders.java
+++ b/jaxrs-api/src/main/java/jakarta/ws/rs/core/HttpHeaders.java
@@ -74,6 +74,7 @@
      * comma-separated header string contains value as a whole word.
      * @see #getRequestHeaders()
      * @see #getHeaderString(String)
+     * @since 4.0
      */
     public boolean containsHeaderString(String name, String value, boolean ignoreCase);