update compat matrix + correct sub-resource deletion (#88) (#100)

* update compat matrix + correct sub-resource deletion

* add release dates back in

* file from upstream

Author: jwilliams-mongo

source/index.txt

@@ -49,7 +49,7 @@ create in your |k8s| {+cluster+}.
 New Default: Deletion Protection in |ak8so| 2.0
 -----------------------------------------------------------------
 
-With |ak8so| 2.0, custom resources you delete in |k8s| are no longer deleted in 
+By default with |ak8so|, custom resources you delete in |k8s| are no longer deleted in 
 |service|. Instead, |ak8so| simply stops managing those resources. 
 
 For example, if you delete an :ref:`atlasproject-custom-resource` 
@@ -84,52 +84,6 @@ the correct behavior for your deployment:
        custom resource overwrite changes in |service| made using another
        interface, such as the {+atlas-ui+}.
 
-Subobjects are objects that you define within another custom resource instead of 
-their own dedicated custom resource, such as 
-:ref:`private endpoints <ak8so-private-endpoint>` or 
-:ref:`IP access lists <add-to-access-list>`, and behave as follows:
-
-.. list-table::
-   :widths: 50 50
-   :header-rows: 1
-
-   * - Deletion Protection for Subobjects
-     - No Deletion Protection for Subobjects
-
-   * - New default as of |ak8so| 2.0
-     - Default prior to |ak8so| 2.0
-
-   * - If you delete a subobject from a custom resource, |ak8so| deletes the 
-       corresponding subobject from |service| *only* if that subobject existed 
-       in the custom resource during the last reconciliation and matches exactly. 
-
-       For example, if you delete a private endpoint from the
-       :ref:`atlasproject-custom-resource`, |ak8so| checks if it existed in the 
-       custom resource during the last reconciliation and matches exactly, meaning it 
-       wasn't created or changed by another interface, such as the {+atlas-ui+}. 
-       If it doesn't match exactly, |ak8so| does *not* reconcile the 
-       :ref:`atlasproject-custom-resource`. 
-       For this reason, we recommend against using the {+atlas-ui+}
-       to administer |ak8so| projects and deployments. 
-       
-       :ref:`Alert <ak8so-alert-configurations>` subobjects are exceptions
-       with their own sync controls.
-
-     - If you delete a subobject from a custom resource, |ak8so| deletes the 
-       corresponding subobject from |service| *and all other subobjects of the same type*, 
-       even if they existed in |service| prior to using |ak8so| or were created 
-       or changed by another interface, such as the {+atlas-ui+}.
-
-       For example, if you delete a private endpoint from the
-       :ref:`atlasproject-custom-resource`, |ak8so| overwrites |service| with 
-       what you configured in the custom resource, including overwriting any private endpoints 
-       you added using the {+atlas-ui+}.
-       For this reason, we recommend against using the {+atlas-ui+}
-       to administer |ak8so| projects and deployments.
-
-       :ref:`Alert <ak8so-alert-configurations>` subobjects are exceptions
-       with their own sync controls.
-
 .. _revert-deletion-protection:
 
 Revert New Deletion Protection Default