DOCSP-48090 OmitEmpty global flag (#477)

* DOCSP-48090 OmitEmpty global flag

* build fail

* netlify still failing

* RR comments

* RR comments

* add link to the BSON options section

* RR feedback

Author: lindseymoore

source/fundamentals/bson.txt

@@ -74,8 +74,12 @@ use in the {+driver-short+}:
      - Description
 
    * - ``omitempty``
-     - The field will not be marshalled if it is set to the zero value
-       corresponding to the field type.
+     - The field will not be marshaled if it is set to the zero value
+       corresponding to the field type. To globally prevent the driver from 
+       marshaling fields set to a zero value, you can set the ``OmitEmpty`` 
+       BSON option. To learn more about how to set the ``OmitEmpty`` BSON option, 
+       see the example in the :ref:`BSON Options <golang-bson-options>` 
+       section of this page. 
 
    * - ``minsize``
      - If the field is type ``int64``, ``uint``, ``uint32``, or ``uint64`` and
@@ -211,6 +215,8 @@ the following rules:
       - Includes an empty ``lastname`` field
       - Stores the ``Address`` field as a nested value
 
+.. _golang-bson-options:
+
 BSON Options
 ------------
 
@@ -226,6 +232,8 @@ This example performs the following actions:
     to use the ``"json"`` struct tag if a ``"bson"`` struct tag is not specified
   - Sets the ``NilSliceAsEmpty`` field to ``true``, which instructs the driver
     to marshal ``nil`` Go slices as empty BSON arrays
+  - Sets the ``OmitEmpty`` field to ``true``, which instructs the driver to globally omit
+    empty values from the marshaled BSON, rather than set empty values to ``null`` 
 
 - Passes the ``BSONOptions`` instance to the ``SetBSONOptions()`` helper method to specify
   a ``ClientOptions`` instance
@@ -236,6 +244,7 @@ This example performs the following actions:
    bsonOpts := &options.BSONOptions {
        UseJSONStructTags: true,
        NilSliceAsEmpty: true,
+       OmitEmpty: true,
    }
 
    clientOpts := options.Client().

source/whats-new.txt

@@ -26,6 +26,7 @@ What's New
 
 Learn what's new in:
 
+* :ref:`Version 2.2 <golang-version-2.2>`
 * :ref:`Version 2.1 <golang-version-2.1>`
 * :ref:`Version 2.0 <golang-version-2.0>`
 * :ref:`Version 1.17 <golang-version-1.17>`
@@ -37,6 +38,19 @@ Learn what's new in:
 * :ref:`Version 1.12.1 <version-1.12.1>`
 * :ref:`Version 1.12 <version-1.12>`
 
+.. _golang-version-2.2:
+
+What's New in 2.2
+-----------------
+
+The 2.2 {+driver-short+} release includes the following improvements
+and fixes:
+
+- Adds the ``OmitEmpty`` BSON option to globally prevent empty values from
+  being serialized. To learn more about setting the ``OmitEmpty`` global flag,
+  see the example in the :ref:`BSON Options <golang-bson-options>` section of the 
+  BSON guide. 
+
 .. _golang-version-2.1:
 
 What's New in 2.1