[Kotlin Sync] Support naming strategy for bson-kotlinx

source/data-formats/serialization.txt

@@ -227,6 +227,24 @@ encode defaults:
    :end-before: end-codec
    :dedent:
 
+.. _kotlin-sync-serialization-snake-case-eg:
+
+Enforcing Snake Case Naming Example
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following example shows how to convert field names from their data class
+fields into snake case by setting the ``bsonNamingStrategy`` parameter:
+
+.. literalinclude:: /includes/data-formats/serialization.kt
+   :language: kotlin
+   :start-after: start-snake-case
+   :end-before: end-snake-case
+   :dedent:
+
+.. note::
+
+   The ``bsonNamingStrategy`` parameter is available for {+driver-short+} v5.4 and later.
+
 To learn more about the methods and classes mentioned in this section,
 see the following API documentation:
 
@@ -238,6 +256,8 @@ see the following API documentation:
 
 - `BsonConfiguration
   <{+api-root+}/bson-kotlinx/bson-kotlinx/org.bson.codecs.kotlinx/-bson-configuration/index.html>`__
+
+- `BsonNamingStrategy <{+api-root+}/bson-kotlinx/bson-kotlinx/org.bson.codecs.kotlinx/-bson-naming-strategy/index.html>`__
 
 .. _kotlin-sync-polymorphic:
 

source/includes/data-formats/serialization.kt

@@ -101,6 +101,12 @@ fun main() {
     )
     // end-codec
 
+    // start-snake-case
+    val myCustomCodec = KotlinSerializerCodec.create<PaintOrder>(
+        bsonConfiguration = BsonConfiguration(bsonNamingStrategy = BsonNamingStrategy.SNAKE_CASE)
+    )
+    // end-snake-case
+
     // start-poly-operations
     val collection = database.getCollection<Person>("school")
 

source/whats-new.txt

@@ -29,6 +29,10 @@ What's New in 5.4
 The 5.4 driver release includes the following changes, fixes,
 and features:
 
+- Adds support for converting field names to snake case during serialization. To
+  learn more, see the :ref:`kotlin-sync-serialization-snake-case-eg` on the
+  Serialization page.
+
 .. sharedinclude:: dbx/jvm/v5.4-wn-items.rst
 
    .. replacement:: install-bom-link