Upgrade Guide with Delta Bundle
################################

.. _19.3.3|EKB-3853:

.. important::

   * When upgrading from any of the following versions, first obtain and apply the patch corresponding to your
     version from the VOSS secure FTP site. Even if you have applied a previous version patch, you need to apply your current version patch before proceeding.

     * 19.1.2 - ``/software/patches/19.1.2/Recommended_Patches/EKB-3853-19.1.2_patch``
     * 19.2.1 - ``/software/patches/19.2.1/Recommended_Patches/EKB-3853-19.2.1_patch``
     * 19.3.1 - ``/software/patches/19.3.1/Recommended_Patches/EKB-3853-19.3.1_patch``
     * 19.3.2 - ``/software/patches/19.3.2/Recommended_Patches/EKB-3853-19.3.2_patch``
     

.. note::

   Normal operations will be interrupted during an upgrade. Carry out the upgrade in a maintenance
   window. Refer to the type of upgrade for details on the upgrade duration.


.. toctree::
   :maxdepth: 2

   /src/user/platform/reference-screen-command

*****************
Multinode Upgrade
*****************

.. toctree::
   :maxdepth: 2

   /src/user/install/multinode-upgrade-Delta

   
*******************
Standalone Upgrade
*******************

.. toctree::
   :maxdepth: 2

   /src/user/install/upgrade-cucdm-Delta