diff --git a/.kitchen.yml b/.kitchen.yml
index 071fc10..e0aa7fb 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -1,34 +1,36 @@
 ---
+<%
+  db_host = ENV['KITCHEN_DB_HOST'] || 'localhost'
+  chef_omnibus_url = ENV['KITCHEN_CHEF_OMNIBUS_URL'] || nil
+%>
 driver:
   name: vagrant
 
 provisioner:
   name: chef_zero
+  <% if chef_omnibus_url %>
+  chef_omnibus_url: '<%= chef_omnibus_url %>'
+  <% end %>
 
 platforms:
-  - name: ubuntu-14.04
   - name: centos-6.8
   - name: centos-7.2
+  - name: ubuntu-14.04
+  - name: ubuntu-16.04
+  - name: debian-7
+  - name: debian-8
 
 suites:
   - name: server
-    require_chef_omnibus: 12.14.60
     run_list:
       - recipe[icinga2::server]
       - recipe[icinga2-test::default]
-    attributes:
-      icinga2:
-        version: '2.5.4-1'
 
   - name: client
     run_list:
       - recipe[icinga2::client]
-    attributes:
-      icinga2:
-        version: '2.5.4-1'
 
   - name: web2-package
-    require_chef_omnibus: 12.14.60
     driver:
       network:
         - ["forwarded_port", {guest: 80, host: 8080, auto_correct: true}]
@@ -38,18 +40,14 @@ suites:
       - recipe[icinga2-test::default]
     attributes:
       icinga2:
-        version: '2.5.4-1'
         web2:
           enable: true
           install_method: package
-          version: 2.3.4
         ido:
           install_mysql_client: true
-          db_host: 192.168.1.152
+          db_host: <%= db_host %>
           load_schema: true
-          db_password: rooT-123
   - name: web2-source
-    require_chef_omnibus: 12.14.60
     driver:
       network:
         - ["forwarded_port", {guest: 80, host: 8080, auto_correct: true}]
@@ -59,18 +57,14 @@ suites:
       - recipe[icinga2-test::default]
     attributes:
       icinga2:
-        version: '2.5.4-1'
         web2:
           enable: true
           install_method: source
-          version: 2.3.4
         ido:
           install_mysql_client: true
-          db_host: 192.168.1.152
+          db_host: <%= db_host %>
           load_schema: true
-          db_password: rooT-123
   - name: classicui
-    require_chef_omnibus: 12.14.60
     driver:
       network:
         - ["forwarded_port", {guest: 80, host: 8080, auto_correct: true}]
@@ -80,7 +74,5 @@ suites:
       - recipe[icinga2-test::default]
     attributes:
       icinga2:
-        version: '2.5.4-1'
         classic_ui:
-          version: '2.5.4-1'
           enable: true
diff --git a/README.md b/README.md
index 6cb3dca..18c8db8 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@ icinga2 Cookbook
 
 [![Cookbook](http://img.shields.io/badge/cookbook-v2.9.1-green.svg)](https://github.com/icinga/chef-icinga2) [![Build Status](https://travis-ci.org/Icinga/chef-icinga2.svg?branch=master)](https://travis-ci.org/Icinga/chef-icinga2)[![Build Status](https://jenkins-01.eastus.cloudapp.azure.com/job/icinga2-cookbook/badge/icon)](https://jenkins-01.eastus.cloudapp.azure.com/job/icinga2-cookbook/)
 
+![Icinga Logo](https://www.icinga.com/wp-content/uploads/2014/06/icinga_logo.png)
+
 This is a [Chef] cookbook to manage [Icinga2] using Chef LWRP.
 
 
@@ -197,15 +199,24 @@ use `Array` attribute `default['icinga2']['user_defined_objects_dir']` instead.
 
 ## Icinga2 Server Setup Recipes
 
+### Disable Default Configuration Directory
+
+If you are using this cookbook to manage `icinga2` configuration, set `default['icinga2']['disable_conf_d']` to `true`.
+
+Cookbook generated configuration files using LWRP are created under directory `default['icinga2']['objects_dir']`.
+
+
 ### How to Install and Configure Icinga2 Server without UI
 
 - add recipe `icinga2::server` to your run_list
 
+
 ### How to Install and Configure Icinga2 Server with ClassicUI
 
 - set node['icinga2']['classic_ui']['enable'] = true
 - add recipe `icinga2::server` to your run_list
 
+
 ### How to Install and Configure Icinga2 Server with ClassicUI and PNP
 
 - set node['icinga2']['classic_ui']['enable'] = true
@@ -1981,7 +1992,7 @@ Above LWRP resource will apply `Dependency` to all `Host` objects for provided `
 
 ## Cookbook Core Attributes
 
-* `default['icinga2']['version']` (default: `2.5.4-1`): icinga2 version
+* `default['icinga2']['version']` (default: `2.6.0-X, calculated`): icinga2 version
 
 * `default['icinga2']['conf_dir']` (default: `/etc/icinga2`): icinga2 configuration location
 
@@ -2090,23 +2101,23 @@ Above LWRP resource will apply `Dependency` to all `Host` objects for provided `
 
 ## Cookbook Icinga2 IDO Attributes
 
- * `default[:icinga2]['ido']['type']` (default: `mysql`): icinga2 ido type, valid are `mysql pgsql`
+ * `default['icinga2']['ido']['type']` (default: `mysql`): icinga2 ido type, valid are `mysql pgsql`
 
- * `default[:icinga2]['ido']['load_schema']` (default: `false`): whether to load db schema
+ * `default['icinga2']['ido']['load_schema']` (default: `false`): whether to load db schema
 
- * `default[:icinga2]['ido']['install_mysql_client']` (default: `false`): install mysql client using mysql official repository
+ * `default['icinga2']['ido']['install_mysql_client']` (default: `false`): install mysql client using mysql official repository
 
- * `default[:icinga2]['ido']['db_host']` (default: `localhost`): Icinga2 ido db host
+ * `default['icinga2']['ido']['db_host']` (default: `localhost`): Icinga2 ido db host
 
- * `default[:icinga2]['ido']['db_port']` (default: `3306`): Icinga2 ido db port
+ * `default['icinga2']['ido']['db_port']` (default: `3306`): Icinga2 ido db port
 
- * `default[:icinga2]['ido']['db_name']` (default: `icinga`): Icinga2 ido db name
+ * `default['icinga2']['ido']['db_name']` (default: `icinga`): Icinga2 ido db name
 
- * `default[:icinga2]['ido']['db_user']` (default: `icinga`): Icinga2 ido db user
+ * `default['icinga2']['ido']['db_user']` (default: `icinga`): Icinga2 ido db user
 
- * `default[:icinga2]['ido']['db_password']` (default: `icinga`): Icinga2 ido db password
+ * `default['icinga2']['ido']['db_password']` (default: `icinga`): Icinga2 ido db password
 
- * `default[:icinga2]['ido']['mysql_home']` (default: `/etc/mysql`): sets value for environment variable `MYSQL_HOME` for schema load
+ * `default['icinga2']['ido']['mysql_home']` (default: `/etc/mysql`): sets value for environment variable `MYSQL_HOME` for schema load
 
  * `default['icinga2']['ido']['mysql_version']` (default: `false`): install mysql client if set true
 
@@ -2143,32 +2154,32 @@ Above LWRP resource will apply `Dependency` to all `Host` objects for provided `
 
 ## Cookbook Icingaweb2 Attributes
 
- * `default[:icinga2][:web2][:enable]` (default: `false`): whether to setup icingaweb2
+ * `default['icinga2']['web2']['enable']` (default: `false`): whether to setup icingaweb2
 
- * `default[:icinga2][:web2][:install_method]` (default: `package`): icingaweb2 install method, options: package, source
+ * `default['icinga2']['web2']['install_method']` (default: `package`): icingaweb2 install method, options: package, source
 
- * `default[:icinga2][:web2][:source_url]` (default: `git://git.icinga.org/icingaweb2.git`):
+ * `default['icinga2']['web2']['source_url']` (default: `git://git.icinga.org/icingaweb2.git`):
 
- * `default[:icinga2][:web2][:version]` (default: `2.3.4`): icingaweb2 package version / git branch / git tag etc.
+ * `default['icinga2']['web2']['version']['icingaweb2']` (default: `2.4.1-1`): icingaweb2 version
 
- * `default[:icinga2][:web2][:release]` (default: `1`): icingaweb2 package release
+ * `default['icinga2']['web2']['version']['icingacli']` (default: `2.4.1-1`): icingacli version
 
- * `default[:icinga2][:web2][:web_root]` (default: `/usr/share/icingaweb2`): icingaweb2 web root location
+ * `default['icinga2']['web2']['web_root']` (default: `/usr/share/icingaweb2`): icingaweb2 web root location
 
- * `default[:icinga2][:web2][:web_uri]` (default: `/icingaweb2`): icingweb2 web uri
+ * `default['icinga2']['web2']['web_uri']` (default: `/icingaweb2`): icingweb2 web uri
 
- * `default[:icinga2][:web2][:conf_dir]` (default: `/etc/icingaweb2`): icingaweb2 config directory
+ * `default['icinga2']['web2']['conf_dir']` (default: `/etc/icingaweb2`): icingaweb2 config directory
 
- * `default[:icinga2][:web2][:log_dir]` (default: `/var/log/icingaweb2`): icingaweb2 log directory
+ * `default['icinga2']['web2']['log_dir']` (default: `/var/log/icingaweb2`): icingaweb2 log directory
 
 
 ## Cookbook Ulimit Attributes
 
- * `default[:icinga2][:limits][:memlock]` (default: `unlimited`): Icinga2 service user memory limit
+ * `default['icinga2']['limits']['memlock']` (default: `unlimited`): Icinga2 service user memory limit
 
- * `default[:icinga2][:limits][:nofile]` (default: `48000`): Icinga2 service user file limit
+ * `default['icinga2']['limits']['nofile']` (default: `48000`): Icinga2 service user file limit
 
- * `default[:icinga2][:limits][:nproc]` (default: `unlimited`): Icinga2 service user process limit
+ * `default['icinga2']['limits']['nproc']` (default: `unlimited`): Icinga2 service user process limit
 
 
 ## Cookbook Repository Attributes
@@ -2208,9 +2219,9 @@ Above LWRP resource will apply `Dependency` to all `Host` objects for provided `
 
 * `default['icinga2']['classic_ui']['enable']` (default: `false`): setup icinga2 classic-ui if set true
 
-* `default['icinga2']['classic_ui']['version']` (default: `2.5.4-1`): icinga2 classic-ui package version
+* `default['icinga2']['classic_ui']['version']` (default: `2.6.0-1`): icinga2 classic-ui package version
 
-* `default['icinga2']['classic_ui']['gui_version']` (default: `1.13.3-0`): icinga2 gui package version
+* `default['icinga2']['classic_ui']['gui_version']` (default: `1.14.0-0`): icinga2 gui package version
 
 * `default['icinga2']['classic_ui']['web_root']` (default: `/usr/share/icinga`): icinga2 web doc root directory location
 
diff --git a/attributes/default.rb b/attributes/default.rb
index 20199dc..1dce38e 100644
--- a/attributes/default.rb
+++ b/attributes/default.rb
@@ -1,7 +1,10 @@
 # frozen_string_literal: true
 # http://docs.icinga.org/icinga2/latest/doc/module/icinga2/chapter/getting-started#getting-started
 
-default['icinga2']['version'] = '2.5.4-1'
+default['icinga2']['version'] = value_for_platform(
+  %w(centos redhat fedora amazon) => { 'default' => '2.6.0-1' },
+  %w(debian ubuntu) => { 'default' => '2.6.0-2' }
+)
 
 default['icinga2']['enable_env_pki'] = false
 default['icinga2']['ignore_version'] = false
diff --git a/attributes/server_classic_ui.rb b/attributes/server_classic_ui.rb
index a989f2a..e0031c0 100644
--- a/attributes/server_classic_ui.rb
+++ b/attributes/server_classic_ui.rb
@@ -9,9 +9,12 @@
   %w(debian ubuntu) => { 'default' => 'icinga2-classicui' }
 )
 
-default['icinga2']['classic_ui']['version'] = '2.5.4-1'
+default['icinga2']['classic_ui']['version'] = value_for_platform(
+  %w(centos redhat fedora amazon) => { 'default' => '2.6.0-1' },
+  %w(debian ubuntu) => { 'default' => '2.6.0-2' }
+)
 
-default['icinga2']['classic_ui']['gui_version'] = '1.13.3-0'
+default['icinga2']['classic_ui']['gui_version'] = '1.14.0-0'
 default['icinga2']['classic_ui']['web_root'] = value_for_platform(
   %w(centos redhat fedora amazon) => { 'default' => '/usr/share/icinga' },
   %w(debian ubuntu) => { 'default' => '/usr/share/icinga2/classicui' }
diff --git a/attributes/server_web2.rb b/attributes/server_web2.rb
index 8755836..eef6561 100644
--- a/attributes/server_web2.rb
+++ b/attributes/server_web2.rb
@@ -3,12 +3,9 @@
 default['icinga2']['web2']['enable'] = false
 default['icinga2']['web2']['install_method'] = 'package' # source
 default['icinga2']['web2']['source_url'] = 'https://github.com/Icinga/icingaweb2.git'
-default['icinga2']['web2']['version'] = '2.3.4'
-default['icinga2']['web2']['release'] = value_for_platform(
-  %w(centos redhat fedora amazon) => { 'default' => '1' }
-)
+default['icinga2']['web2']['version']['icingaweb2'] = '2.4.1-1'
+default['icinga2']['web2']['version']['icingacli'] = '2.4.1-1'
 default['icinga2']['web2']['web_root'] = '/usr/share/icingaweb2'
 default['icinga2']['web2']['web_uri'] = '/icingaweb2'
 default['icinga2']['web2']['conf_dir'] = '/etc/icingaweb2'
 default['icinga2']['web2']['log_dir'] = '/var/log/icingaweb2'
-default['icinga2']['web2']['release'] = '1'
diff --git a/recipes/server_apache.rb b/recipes/server_apache.rb
index 871eb8e..2e87671 100644
--- a/recipes/server_apache.rb
+++ b/recipes/server_apache.rb
@@ -19,6 +19,7 @@
 #
 
 node.default['apache']['servertokens'] = 'Minimal'
+node.default['apache']['mpm'] = 'prefork'
 
 node['icinga2']['apache_modules'].each { |mod| include_recipe "apache2::#{mod}" }
 
diff --git a/recipes/server_web2.rb b/recipes/server_web2.rb
index 5e7daf7..46ff391 100644
--- a/recipes/server_web2.rb
+++ b/recipes/server_web2.rb
@@ -18,8 +18,9 @@
 # limitations under the License.
 #
 
-web2_version = node['icinga2']['web2']['install_method'] == 'source' ? 'v' + node['icinga2']['web2']['version'] : node['icinga2']['web2']['version'] + '-' + node['icinga2']['web2']['release'] + node['icinga2']['icinga2_version_suffix'].to_s
-cli_version = node['icinga2']['web2']['version'] + '-' + node['icinga2']['web2']['release'] + node['icinga2']['icinga2_version_suffix']
+cli_package_version = node['icinga2']['web2']['version']['icingacli'] + node['icinga2']['icinga2_version_suffix']
+web2_package_version = node['icinga2']['web2']['version']['icingaweb2'] + node['icinga2']['icinga2_version_suffix']
+web2_source_version = 'v' + node['icinga2']['web2']['version']['icingaweb2'].split('-')[0]
 
 if node.attribute?('time') && node['time'].attribute?('timezone')
   timezone = node['time']['timezone']
@@ -88,7 +89,7 @@
 
   git node['icinga2']['web2']['web_root'] do
     repository node['icinga2']['web2']['source_url']
-    revision web2_version
+    revision web2_source_version
     user node[node['icinga2']['web_engine']]['user']
     group node[node['icinga2']['web_engine']]['group']
     only_if { node['icinga2']['web2']['install_method'] == 'source' }
@@ -97,12 +98,12 @@
 else
   package 'icingaweb2' do
     # skip ubuntu version for now
-    version web2_version unless node['icinga2']['ignore_version'] || !(node['platform_family'] == 'rhel')
+    version web2_package_version unless node['icinga2']['ignore_version'] || !(node['platform_family'] == 'rhel')
     notifies :restart, 'service[icinga2]', :delayed
   end
 
   package 'icingacli' do
-    version cli_version unless node['icinga2']['ignore_version']
+    version cli_package_version unless node['icinga2']['ignore_version']
     notifies :restart, 'service[icinga2]', :delayed
     only_if { node['platform_family'] == 'rhel' }
   end
diff --git a/spec/unit/recipes/server_classic_ui_spec.rb b/spec/unit/recipes/server_classic_ui_spec.rb
index 12e29a5..dcdf3e8 100644
--- a/spec/unit/recipes/server_classic_ui_spec.rb
+++ b/spec/unit/recipes/server_classic_ui_spec.rb
@@ -12,8 +12,8 @@
     let(:chef_run) do
       ChefSpec::SoloRunner.new(platform: 'centos', version: '6.4') do |node|
         node.automatic['platform_family'] = 'rhel'
-        node.set['icinga2']['classic_ui']['enable'] = true
-        node.set['icinga2']['ignore_version'] = true
+        node.override['icinga2']['classic_ui']['enable'] = true
+        node.override['icinga2']['ignore_version'] = true
       end.converge(described_recipe)
     end
 
@@ -59,8 +59,8 @@
     let(:chef_run) do
       ChefSpec::SoloRunner.new(platform: 'ubuntu', version: '12.04') do |node|
         node.automatic['platform_family'] = 'debian'
-        node.set['icinga2']['classic_ui']['enable'] = true
-        node.set['icinga2']['ignore_version'] = true
+        node.override['icinga2']['classic_ui']['enable'] = true
+        node.override['icinga2']['ignore_version'] = true
       end.converge(described_recipe)
     end