source/upgrade/upgrade_notes.rst

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General Upgrade Notes
=====================


Java version upgraded to Java 1.8
---------------------------------

As of Apache CloudStack 4.10, Java version required is 1.8 for the
management-server, cloudstack-usage, KVM agent and system-VMs.


.. include:: _java_8_ubuntu.rst


Migrating to dynamic roles feature
----------------------------------

As of Apache CloudStack 4.9, dynamic roles feature can be enabled after an
upgrade. Dyanamic roles feature is enabled by default on new installations.

Please read more about `using dynamic roles <http://docs.cloudstack.apache.org/projects/cloudstack-administration/en/4.9/accounts.html#using-dynamic-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 'Unsecure'. A new
button in the UI is available as well as an API to secure and onboard such
hosts.

Please read more about `host security <http://docs.cloudstack.apache.org/projects/cloudstack-administration/en/latest/hosts.html#security>`_
and 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 <https://issues.apache.org/jira/browse/CLOUDSTACK-6779>`_. On XenServer it
is observed that on VIF unplug Ovs-Vswitchd is crashing resulting in loosing 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 VM's 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 systemvm templates are in the process of behing 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


Other Notes
-----------

If you are experiencing CloudStack UI issues, please consider upgrading your
tomcat instance to version 6.0.43  (tested version, but earlier versions prior
to 6.0.37 might work as well), to address the tomcat response issues caused by
latency between the browser/client and CloudStack Management server.