DOCSP-45822 Add convention packs section (#447)

Author: jordan-smith721

source/fundamentals/serialization.txt

@@ -140,6 +140,55 @@ Implementing the `IBsonArraySerializer
 interface enables the driver to access serialization information for individual
 items in an array.
 
+.. _csharp-conventions:
+
+Conventions
+-----------
+
+Convention packs allow you to define and apply
+**conventions** to your classes and their members that the driver uses during serialization.
+Conventions specify how data is mapped between your
+{+language+} objects and MongoDB documents without requiring you to decorate
+each class with attributes. 
+
+The {+driver-short+} provides built-in conventions that you can use to
+customize the serialization process. The following table describes some of the
+built-in conventions:
+
+.. list-table::
+   :header-rows: 1
+   :widths: 40 60
+
+   * - Convention
+     - Description
+
+   * - `CamelCaseElementNameConvention <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.CamelCaseElementNameConvention.html>`__
+     - Converts element names to camel case during serialization and deserialization.
+     
+   * - `EnumRepresentationConvention <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.EnumRepresentationConvention.html>`__
+     - Converts enum values to a specified representation during serialization
+       and deserialization.
+     
+   * - `IgnoreExtraElementsConvention <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.IgnoreExtraElementsConvention.html>`__
+     - Specifies whether to ignore extra elements in a document during deserialization.
+     
+   * - `ObjectSerializerAllowedTypesConvention <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.ObjectSerializerAllowedTypesConvention.html>`__
+     - Specifies which types are allowed to be serialized using an object
+       serializer.
+
+To view a full list of available conventions, see the `Conventions
+<{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.html>`__
+class reference in the API Documentation.
+
+You can register a convention by instantiating a ``ConventionPack`` with the
+specified conventions, then passing it to the
+``ConventionRegistry.Register()`` method, as shown in the following example:
+
+.. code-block:: csharp
+
+   var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() };
+   ConventionRegistry.Register("CamelCaseConvention", camelCaseConvention, t => true);
+
 Additional Information
 ----------------------
 
@@ -157,3 +206,6 @@ guide, see the following API documentation:
 - `SerializerRegistry <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.BsonSerializer.SerializerRegistry.html>`__
 - `BsonSerializer <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.BsonSerializer.html>`__
 - `IBsonSerializer <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.IBsonSerializer.html>`__
+- `ConventionPack <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.ConventionPack.html>`__
+- `ConventionRegistry <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Conventions.ConventionRegistry.html>`__
+- `Register() <{+new-api-root+}/MongoDB.Bson.Serialization.Conventions.ConventionRegistry.Register.html#MongoDB_Bson_Serialization_Conventions_ConventionRegistry_Register_System_String_MongoDB_Bson_Serialization_Conventions_IConventionPack_System_Func_System_Type_System_Boolean__>`__

source/fundamentals/serialization/poco.txt

@@ -168,6 +168,9 @@ MongoDB collection.
 
       var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() };
       ConventionRegistry.Register("CamelCase", camelCaseConvention, type => true);
+   
+   For more information about conventions, see the
+   :ref:`csharp-conventions` section of the Serialization guide.
 
 Select Type Representation
 ~~~~~~~~~~~~~~~~~~~~~~~~~~

source/whats-new.txt

@@ -19,6 +19,7 @@ What's New
 
 Learn what's new in:
 
+* :ref:`Version 3.2 <csharp-version-3.2>`
 * :ref:`Version 3.1 <csharp-version-3.1>`
 * :ref:`Version 3.0 <csharp-version-3.0>`
 * :ref:`Version 2.30 <csharp-version-2.30>`
@@ -33,6 +34,18 @@ Learn what's new in:
 
 .. _upcoming-breaking-changes:
 
+.. _csharp-version-3.2:
+
+What's New in 3.2
+-----------------
+
+The 3.2 driver release includes the following new features:
+
+- Adds a new ``ObjectSerializerAllowedTypesConvention`` convention that
+  allows you to specify which types are allowed to be serialized and
+  deserialized by the object serializer. To learn more about conventions,
+  see the :ref:`csharp-conventions` guide.
+
 .. _csharp-version-3.1:
 
 What's New in 3.1