diff --git a/NEWS.txt b/NEWS.txt
index eac73f503c..1dbc5b4217 100644
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -64,6 +64,11 @@ Upgrading
       otc_backlog_expiration_interval_ms are deprecated and will be removed at earliest with next major release.
       otc_coalescing_strategy is disabled since 3.11.
 
+Deprecation
+---------
+    - JavaScript user-defined functions have been deprecated. They are planned for removal
+      in the next major release. (CASSANDRA-17280)
+
 4.0.2
 =====
 
diff --git a/doc/modules/cassandra/pages/cql/functions.adoc b/doc/modules/cassandra/pages/cql/functions.adoc
index 157f46a6b3..7f7dbf9b2e 100644
--- a/doc/modules/cassandra/pages/cql/functions.adoc
+++ b/doc/modules/cassandra/pages/cql/functions.adoc
@@ -242,11 +242,19 @@ For example, `bigintAsBlob(3)` returns `0x0000000000000003` and `blobAsBigint(0x
 ==== User-defined functions
 
 User-defined functions (UDFs) execute user-provided code in Cassandra. 
-By default, Cassandra supports defining functions in _Java_ and _JavaScript_. 
+By default, Cassandra supports defining functions in _Java_ and _JavaScript_.
 Support for other JSR 223 compliant scripting languages, such as Python, Ruby, and Scala, is possible by adding a JAR to the classpath.
 
 UDFs are part of the Cassandra schema, and are automatically propagated to all nodes in the cluster.  
-UDFs can be _overloaded_, so that multiple UDFs with different argument types can have the same function name. 
+UDFs can be _overloaded_, so that multiple UDFs with different argument types can have the same function name.
+
+
+[NOTE]
+.Note
+====
+_JavaScript_ user-defined functions have been deprecated. They are planned for removal
+in the next major release.
+====
 
 For example:
 
diff --git a/src/java/org/apache/cassandra/config/DatabaseDescriptor.java b/src/java/org/apache/cassandra/config/DatabaseDescriptor.java
index 6958422b6e..0bfb18e3e8 100644
--- a/src/java/org/apache/cassandra/config/DatabaseDescriptor.java
+++ b/src/java/org/apache/cassandra/config/DatabaseDescriptor.java
@@ -761,6 +761,9 @@ public class DatabaseDescriptor
         if (conf.allow_extra_insecure_udfs)
             logger.warn("Allowing java.lang.System.* access in UDFs is dangerous and not recommended. Set allow_extra_insecure_udfs: false to disable.");
 
+        if(conf.enable_scripted_user_defined_functions)
+            logger.warn("JavaScript user-defined functions have been deprecated. You can still use them but the plan is to remove them in the next major version. For more information - CASSANDRA-17280");
+
         if (conf.commitlog_segment_size_in_mb <= 0)
             throw new ConfigurationException("commitlog_segment_size_in_mb must be positive, but was "
                     + conf.commitlog_segment_size_in_mb, false);