mongodb · norareidy · May 22, 2025 · May 22, 2025 · May 22, 2025 · May 22, 2025
diff --git a/source/fundamentals/auth.txt b/source/fundamentals/auth.txt
@@ -33,7 +33,6 @@ The Go driver supports the following authentication mechanisms:
 
 * :ref:`SCRAM-SHA-256 <golang_sha_256>`
 * :ref:`SCRAM-SHA-1 <golang-sha-1>`
-* :ref:`MONGODB-CR <golang-mongodb-cr>`
 * :ref:`MongoDB-AWS <golang-mongodb-aws>`
 * :ref:`X.509 <golang-x509>`
 
@@ -63,33 +62,17 @@ Each authentication mechanism contains the following placeholders:
   authentication data. If you omit this option, the driver uses the
   default value ``admin``.
 
+.. _golang_sha_256:
 .. _golang-default-auth-mechanism:
 
-Default
-~~~~~~~
-
-The default mechanism uses one of the following authentication
-mechanisms depending on what MongoDB versions your server supports:
-
-.. list-table::
-   :header-rows: 1
-   :stub-columns: 1
-   :class: compatibility-large
-
-   * - Mechanism
-     - Versions
-
-   * - ``SCRAM-SHA-256``
-     - MongoDB 4.0 and later
-
-   * - ``SCRAM-SHA-1``
-     - MongoDB 3.0, 3.2, 3.4, and 3.6
+``SCRAM-SHA-256``
+~~~~~~~~~~~~~~~~~
 
-   * - ``MONGODB-CR``
-     - MongoDB 2.6 and earlier
+``SCRAM-SHA-256`` is a salted challenge-response authentication mechanism
+(SCRAM) that uses your database username and password, encrypted with the ``SHA-256``
+algorithm, to authenticate your user. This is the default authentication mechanism.
 
-To specify the default authentication mechanism, omit the
-``AuthMechanism`` option:
+To specify this default authentication mechanism, omit the ``AuthMechanism`` option:
 
 .. code-block:: go
 
@@ -103,26 +86,8 @@ To specify the default authentication mechanism, omit the
 
    client, err := mongo.Connect(clientOpts)
 
-To learn more about the challenge-response (CR) and salted
-challenge-response authentication mechanisms (SCRAM) that MongoDB supports,
-see the :manual:`SCRAM </core/security-scram/>` section of the server manual.
-
-.. _golang_sha_256:
-
-``SCRAM-SHA-256``
-~~~~~~~~~~~~~~~~~
-
-.. important::
-
-   ``SCRAM-SHA-256`` is the default authentication method for MongoDB starting
-   in MongoDB 4.0.
-
-``SCRAM-SHA-256`` is a salted challenge-response authentication mechanism
-(SCRAM) that uses your database username and password, encrypted with the ``SHA-256``
-algorithm, to authenticate your user.
-
-To specify the ``SCRAM-SHA-256`` authentication mechanism, assign the
-``AuthMechanism`` option the value ``"SCRAM-SHA-256"``:
+You can also explicitly specify the ``SCRAM-SHA-256`` authentication mechanism
+by assigning the ``AuthMechanism`` option the value ``"SCRAM-SHA-256"``:
 
 .. code-block:: go
    :emphasize-lines: 2
@@ -138,17 +103,15 @@ To specify the ``SCRAM-SHA-256`` authentication mechanism, assign the
 
    client, err := mongo.Connect(clientOpts)
 
+To learn more about the challenge-response authentication mechanisms (SCRAM) that MongoDB supports,
+see the :manual:`SCRAM </core/security-scram/>` section of the Server manual.
+
 .. _golang-scram-sha-1-auth-mechanism:
 .. _golang-sha-1:
 
 ``SCRAM-SHA-1``
 ~~~~~~~~~~~~~~~
 
-.. important::
-
-   ``SCRAM-SHA-1`` is the default authentication method for MongoDB versions
-   3.0, 3.2, 3.4, and 3.6.
-
 ``SCRAM-SHA-1`` is a salted challenge-response mechanism (SCRAM) that uses your
 username and password, encrypted using the ``SHA-1`` algorithm, to authenticate
 your user.
@@ -170,29 +133,11 @@ To specify the ``SCRAM-SHA-1`` authentication mechanism, assign the
 
    client, err := mongo.Connect(clientOpts)
 
-.. _golang-mongodb-cr:
-
-``MONGODB-CR``
-~~~~~~~~~~~~~~
-
-``MONGODB-CR`` is a challenge-response authentication mechanism that uses your
-username and password to authenticate your user.
-
-.. important::
-
-   This authentication mechanism was deprecated starting in MongoDB 3.6
-   and is no longer supported as of MongoDB 4.0.
-
 .. _golang-mongodb-aws:
 
 ``MONGODB-AWS``
 ~~~~~~~~~~~~~~~
 
-.. important::
-
-   The MONGODB-AWS authentication mechanism is available only in MongoDB
-   versions 4.4 and later.
-
 The ``MONGODB-AWS`` authentication mechanism uses your Amazon Web Services
 Identity and Access Management (AWS IAM) credentials to authenticate your
 user.

diff --git a/source/fundamentals/connections/network-compression.txt b/source/fundamentals/connections/network-compression.txt
@@ -23,11 +23,11 @@ your application.
 
 The {+driver-short+} supports the following compression algorithms:
 
-1. `Snappy <https://google.github.io/snappy/>`__: available in MongoDB 3.4 and later.
+1. `Snappy <https://google.github.io/snappy/>`__
 
-2. `Zlib <https://zlib.net/>`__: available in MongoDB 3.6 and later.
+#. `Zlib <https://zlib.net/>`__
 
-3. `Zstandard <https://github.com/facebook/zstd/>`__: available in MongoDB 4.2 and later.
+#. `Zstandard <https://github.com/facebook/zstd/>`__
 
 If you specify multiple compression algorithms, the driver selects the
 first one in the list supported by your MongoDB deployment.

diff --git a/source/fundamentals/crud/write-operations/modify.txt b/source/fundamentals/crud/write-operations/modify.txt
@@ -100,9 +100,8 @@ and descriptions </reference/operator/update-field/>`.
 
 .. note:: Aggregation Pipelines in Update Operations
 
-   If you are using MongoDB Server version 4.2 or later, you can use aggregation
-   pipelines made up of a subset of aggregation stages in update operations. To learn more about 
-   the aggregation stages MongoDB supports in
+   You can use aggregation pipelines made up of a subset of aggregation stages
+   in update operations. To learn more about the aggregation stages MongoDB supports in
    aggregation pipelines, see our tutorial on performing
    :manual:`updates with aggregation pipelines
    </tutorial/update-documents-with-aggregation-pipeline/>`.

diff --git a/source/includes/mongodb-compatibility-table-go.rst b/source/includes/mongodb-compatibility-table-go.rst
@@ -8,54 +8,29 @@
      - MongoDB 7.0
      - MongoDB 6.1
      - MongoDB 6.0
-     - MongoDB 5.0
-     - MongoDB 4.4
-     - MongoDB 4.2
-     - MongoDB 4.0
-     - MongoDB 3.6
 
    * - 2.2
      - ✓
      - ✓
      - ✓
      - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✗
 
    * - 2.1
      - ✓
      - ✓
      - ✓
      - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
 
    * - 1.12 to 2.0
      - ⊛ [#8.0-support]_
      - ✓
      - ✓
      - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
 
    * - 1.11
      - ⊛
      - ⊛
      - ✓
      - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
-     - ✓
 
 .. [#8.0-support] {+driver-short+} v1.17 and v2.0 are partially compatible with {+mdb-server+} 8.0 but do not support client bulk write.