Add porting guide for Ansible 9.10.0 (#1854)

docs/docsite/rst/porting_guides/porting_guide_9.rst

@@ -84,6 +84,29 @@ Porting custom scripts
 Networking
 ==========
 
+Porting Guide for v9.10.0
+=========================
+
+Breaking Changes
+----------------
+
+community.mysql
+~~~~~~~~~~~~~~~
+
+- collection - support of mysqlclient connector is deprecated - use PyMySQL connector instead! We will stop testing against it in collection version 4.0.0 and remove the related code in 5.0.0 (https://github.com/ansible-collections/community.mysql/issues/654).
+- mysql_info - The ``users_info`` filter returned variable ``plugin_auth_string`` contains the hashed password and it's misleading, it will be removed from community.mysql 4.0.0. Use the `plugin_hash_string` return value instead (https://github.com/ansible-collections/community.mysql/pull/629).
+- mysql_user - the ``user`` alias of the ``name`` argument has been deprecated and will be removed in collection version 5.0.0. Use the ``name`` argument instead.
+
+Deprecated Features
+-------------------
+
+community.vmware
+~~~~~~~~~~~~~~~~
+
+- vmware_cluster - the module has been deprecated and will be removed in community.vmware 6.0.0 (https://github.com/ansible-collections/community.vmware/pull/2143).
+- vmware_cluster_drs - the module has been deprecated and will be removed in community.vmware 6.0.0 (https://github.com/ansible-collections/community.vmware/pull/2136).
+- vmware_cluster_vcls - the module has been deprecated and will be removed in community.vmware 6.0.0 (https://github.com/ansible-collections/community.vmware/pull/2156).
+
 Porting Guide for v9.9.0
 ========================