diff --git a/source/upgrading/upgrade/upgrade_notes.rst b/source/upgrading/upgrade/upgrade_notes.rst
deleted file mode 100644
index 71a354ace4..0000000000
--- a/source/upgrading/upgrade/upgrade_notes.rst
+++ /dev/null
@@ -1,141 +0,0 @@
-.. Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information#
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
- http://www.apache.org/licenses/LICENSE-2.0
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-
-
-General Upgrade Notes
-=====================
-
-Java version upgraded to Java 17
----------------------------------
-
-As of Apache CloudStack 4.20, support for running with Java 17 has been added.
-In later versions, support for Java 11 will be removed.
-
-If you are running CloudStack with Java 17, for CloudStack versions 4.20 and later:
- * Verify /etc/default/cloudstack-management is consistent with https://github.com/apache/cloudstack/blob/main/packaging/systemd/cloudstack-management.default; Specifically, ensure that the following is present in the JAVA_OPTS:
-
- .. code-block:: bash
-
- --add-opens=java.base/java.lang=ALL-UNNAMED --add-exports=java.base/sun.security.x509=ALL-UNNAMED
-
- * Verify /etc/default/cloudstack-usage is also consistent with the same file in the repository.
- * Perform the same check for /etc/default/cloudstack-agent on the hypervisor hosts.
-
-.. include:: _java_version.rst
-
-
-Java version upgraded to Java 11
----------------------------------
-
-As of Apache CloudStack 4.14, Java version required is 11 for the
-management-server, cloudstack-usage, KVM agent and system-VMs.
-
-
-.. include:: _java_version.rst
-
-UI Deprecation and Removal Notice
----------------------------------
-
-The current jQuery-based CloudStack UI is `deprecated
-`_ in this release of CloudStack
-and will be removed in the next release of Apache CloudStack.
-
-Migrating to dynamic roles feature
-----------------------------------
-
-As of Apache CloudStack 4.9, dynamic roles feature can be enabled after an
-upgrade. Dynamic roles feature is enabled by default on new installations.
-
-Please read more about :ref:`using-dynamics-roles`
-feature and process of migrating to using this after an upgrade.
-
-Agent and KVM Host Security
----------------------------
-
-Starting 4.11, a new CA framework has been introduced that is used to secure
-agent and management server connections. Starting 4.11.1, KVM hosts in UP
-state that are not secured (i.e. the KVM host agent and libvirtd don't have
-CA framework provisioned X509 certificates) will show up as 'Insecure'. A new
-button in the UI is available as well as an API to secure and onboard such
-hosts.
-
-Please read more about :ref:`host-security` and the process of migrating existing KVM hosts and agents to use the new security
-feature.
-
-OVS plug-in
------------
-
-OVS plug-in functionality is disrupted if ovsdaemon crashes
-
-A critical functionality issue came out with `CLOUDSTACK-6779 `_. On XenServer it
-is observed that on VIF unplug Ovs-Vswitchd is crashing resulting in losing all
-the openflow rules added to the bridge. Ovs daemon gets started and creates a
-bridge but configure openflow rules are lost resulting in the disruption of
-connectivity for the Instances on the host.
-
-
-Active-Directory Authentication (LDAP)
---------------------------------------
-
-If using Active-Directory (LDAP/LDAPs) as User authentication; Upgrading to
-4.3 and later require changes in Global Settings. After upgrading CloudStack
-to 4.3 or latest, following Global Settings must be change:
-
-.. cssclass:: table-striped table-bordered table-hover
-
-======================= ============== ==============
-Global Settings Default New
-======================= ============== ==============
-ldap.user.object inetOrgPerson user
-ldap.username.attribute uid sAMAccountName
-======================= ============== ==============
-
-
-SystemVM 32bit deprecated
--------------------------
-
-32bit versions of System VM Templates are in the process of being deprecated. Upgrade instructions from this Release Notes use 64bit Templates.
-
-Explicit JDBC driver declaration
---------------------------------
-
-While upgrading, on some environments the following may be required to be
-added in CloudStack's db.properties file:
-
- # Add these to your db.properties file
-
- db.cloud.driver=jdbc:mysql
-
- db.usage.driver=jdbc:mysql
-
-
-MySQL 8.0 sql mode change
--------------------------
-
-MySQL mode (sql_mode) has changed in CloudStack db.properties to
-"STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,
-ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION".
-
-This gets automatically applies to the MySQL session used by CloudStack management server.
-
-If the admin uses MySQL directly and wants to query tables it is advised to change the sql_mode in the corresponding session or globally.
-
-Eg. mysql> set global sql_mode="STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,
- "> ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION";
- Query OK, 0 rows affected (0.00 sec)
-
- mysql> set sql_mode="STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,
- "> ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION";
- Query OK, 0 rows affected (0.00 sec)
\ No newline at end of file