diff --git a/source/installguide/hypervisor/kvm.rst b/source/installguide/hypervisor/kvm.rst
index 2f2e27adfb..a498d27089 100644
--- a/source/installguide/hypervisor/kvm.rst
+++ b/source/installguide/hypervisor/kvm.rst
@@ -26,7 +26,7 @@ are recommended:
 
 -  CentOS / RHEL: 7.X
 
--  Ubuntu: 14.04
+-  Ubuntu: 16.04
 
 The main requirement for KVM hypervisors is the libvirt and Qemu
 version. No matter what Linux distribution you are using, make sure the
@@ -34,7 +34,7 @@ following requirements are met:
 
 -  libvirt: 1.2.0 or higher
 
--  Qemu/KVM: 2.0 or higher
+-  Qemu/KVM: 1.5 or higher (2.5 or higher recommended)
 
 The default bridge in CloudStack is the Linux native bridge
 implementation (bridge module). CloudStack includes an option to work
@@ -134,6 +134,11 @@ KVM instances.
 
 #. Repeat all of these steps on every hypervisor host.
 
+.. warning::
+   CloudStack |version| requires Java 11 JRE. Installing CloudStack agent will
+   automatically install Java 11, but it's good to explicitly confirm that the Java 11 
+   is the selected/active one (in case you had a previous Java version already installed)
+   with ``alternatives --config java``, after CloudStack agent is installed.
 
 Install and configure the Agent
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/source/installguide/management-server/_prerequisite.rst b/source/installguide/management-server/_prerequisite.rst
index e47530fae0..9c2ab52c75 100644
--- a/source/installguide/management-server/_prerequisite.rst
+++ b/source/installguide/management-server/_prerequisite.rst
@@ -91,3 +91,9 @@ node.
 
 #. Repeat all of these steps on every host where the Management Server
    will be installed.
+
+.. warning::
+   CloudStack |version| requires Java 11 JRE. Installing CloudStack packages will
+   automatically install Java 11, but it's good to explicitly confirm that the Java 11 
+   is the selected/active one (in case you had a previous Java version already installed)
+   with ``alternatives --config java`` after CloudStack packages are already installed.
diff --git a/source/quickinstallationguide/qig.rst b/source/quickinstallationguide/qig.rst
index e9626820d8..38642c3a57 100644
--- a/source/quickinstallationguide/qig.rst
+++ b/source/quickinstallationguide/qig.rst
@@ -286,7 +286,7 @@ insert the following information.
 
    [cloudstack]
    name=cloudstack
-   baseurl=http://download.cloudstack.org/centos/$releasev/|version|/
+   baseurl=http://download.cloudstack.org/centos/$releasever/|version|/
    enabled=1
    gpgcheck=0
 
@@ -374,7 +374,8 @@ Database Installation and Configuration
 We'll start with installing MySQL and configuring some options to ensure it 
 runs well with CloudStack. 
 
-First, as CentOS 7 no longer provides the MySQL binaries, we need to add a repository: 
+First, as CentOS 7 no longer provides the MySQL binaries, we need to add a MySQL community repository,
+that will provide MySQL Server (and the Python MySQL connector later) : 
 
 .. parsed-literal::
    # wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
@@ -420,39 +421,17 @@ start on boot as follows:
    # systemctl start mysqld
 
 
-MySQL connector Installation
+MySQL Connector Installation
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Previously, we used to install Python and Java MySQL connectors using the official MySQL packages repository.
-Due to the version changes and introduced incompatibility in versions 8.x of those packages,
-it's advised to disable installing these packages from the MySQL repository (which we previously added)
-and install older versions instead.
-
-Edit the file ``/etc/yum.repos.d/mysql-community.repo`` to add the line 
-"exclude=mysql-connector-python,mysql-connector-java" under the ``[mysql-connectors-community]``
-section of the repo file, so that it looks similar to the below:
-
-.. parsed-literal::
-
-   [mysql-connectors-community]
-   name=MySQL Connectors Community
-   baseurl=http://repo.mysql.com/yum/mysql-connectors-community/el/7/$basearch/
-   enabled=1
-   gpgcheck=1
-   gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
-   **exclude=mysql-connector-python,mysql-connector-java**
-
-We'll proceed with installing ``mysql-connector-java`` from the Base CentOS repo,
-while the ``mysql-connector-python`` will be installed from the Epel repo: 
+Install Python MySQL connector from the MySQL community repository (which we've added previously):
 
 .. parsed-literal:: 
 
-   # yum -y install epel-release
-   # yum -y install mysql-connector-java mysql-connector-python
+   # yum -y install mysql-connector-python
    
-Please ensure that the installed version are older than 8.x (i.e. the current 
-mysql-connector-java version from Epel is 1.1.6, while the mysql-connector-python
-version is 5.1.25)
+Please note that the previously required ``mysql-connector-java`` library is now bundled with CloudStack
+Management server and is no more required to be installed separately.
 
 Installation
 ~~~~~~~~~~~~
@@ -464,6 +443,16 @@ following command:
 
    # yum -y install cloudstack-management
 
+CloudStack |version| requires Java 11 JRE. Installing the management server
+will automatically install Java 11, but it's good to explicitly confirm that the Java 11 
+is the selected/active one (in case you had a previous Java version already installed):
+
+   .. parsed-literal::
+
+      $ alternatives --config java
+      
+Make sure that Java 11 is the chosen one.
+
 With the application itself installed we can now setup the database, we'll do 
 that with the following command and options: