diff --git a/.travis.yml b/.travis.yml
index f95db1ab3fbb3..dd261eb756799 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ language: php
 php:
   - 5.4
   - 5.5
+  - 5.6
 env:
   - TEST_SUITE=unit
   - TEST_SUITE=integration
@@ -10,6 +11,10 @@ env:
   - TEST_SUITE=static_annotation
 matrix:
   exclude:
+    - php: 5.4
+      env: TEST_SUITE=static_phpcs
+    - php: 5.4
+      env: TEST_SUITE=static_annotation
     - php: 5.5
       env: TEST_SUITE=static_phpcs
     - php: 5.5
@@ -18,22 +23,34 @@ before_install:
   - sudo apt-get update -qq
   - sudo apt-get install -y -qq postfix
 before_script:
-  # mock mail
+  # Mock mail
   - sudo service postfix stop
   - smtp-sink -d "%d.%H.%M.%S" localhost:2500 1000 &
   - echo -e '#!/usr/bin/env bash\nexit 0' | sudo tee /usr/sbin/sendmail
-  - echo 'sendmail_path = "/usr/sbin/sendmail -t -i "' | sudo tee "/home/travis/.phpenv/versions/`php -i | grep "PHP Version" | head -n 1 | grep -o -P '\d+\.\d+\.\d+.*'`/etc/conf.d/sendmail.ini"
+  - >
+      echo 'sendmail_path = "/usr/sbin/sendmail -t -i "'
+      | sudo tee "/home/travis/.phpenv/versions/`php -i
+      | grep "PHP Version"
+      | head -n 1
+      | grep -o -P '\d+\.\d+\.\d+.*'`/etc/conf.d/sendmail.ini"
   # Disable xDebug
   - echo '' > ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini
-  # Create DB for Integration tests
-  - sh -c "if [ '$TEST_SUITE' = 'integration' ] || [ '$TEST_SUITE' = 'integration_integrity' ]; then mysql -e 'create database magento_integration_tests;'; mv dev/tests/integration/etc/install-config-mysql.travis.php.dist dev/tests/integration/etc/install-config-mysql.php; fi"
-  # Install tools for static tests
-  - sh -c "if [ '$TEST_SUITE' = 'static_phpcs' ] || [ '$TEST_SUITE' = 'static_annotation' ]; then pear install pear/PHP_CodeSniffer-1.5.2; fi"
-  # Change memmory_limit for travis server
+  # Install MySQL 5.6, create DB for integration tests
+  - >
+      sh -c "if [ '$TEST_SUITE' = 'integration' ] || [ '$TEST_SUITE' = 'integration_integrity' ]; then
+      sudo apt-get remove --purge mysql-common mysql-server-5.5 mysql-server-core-5.5 mysql-client-5.5 mysql-client-core-5.5;
+      sudo apt-get autoremove;
+      sudo apt-get autoclean;
+      sudo apt-add-repository ppa:ondrej/mysql-5.6 -y;
+      sudo apt-get update;
+      sudo apt-get install mysql-server-5.6 mysql-client-5.6;
+      mysql -uroot -e 'SET @@global.sql_mode = NO_ENGINE_SUBSTITUTION; CREATE DATABASE magento_integration_tests;';
+      mv dev/tests/integration/etc/install-config-mysql.travis.php.dist dev/tests/integration/etc/install-config-mysql.php;
+      fi"
+  # Change memory_limit for travis
   - echo 'memory_limit = -1' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - phpenv rehash;
-  - composer install --no-interaction --prefer-source --dev
-  - cd ..
+  - composer install --no-interaction --dev
 script:
   # Unit tests
   - sh -c "if [ '$TEST_SUITE' = 'unit' ]; then ./vendor/bin/phpunit -c dev/tests/unit/phpunit.xml.dist; fi"
diff --git a/app/code/Magento/Directory/Helper/Data.php b/app/code/Magento/Directory/Helper/Data.php
index c584342db5c8d..17d96968a6e92 100644
--- a/app/code/Magento/Directory/Helper/Data.php
+++ b/app/code/Magento/Directory/Helper/Data.php
@@ -182,7 +182,9 @@ public function getRegionJson()
                     ];
                 }
                 $json = $this->_coreHelper->jsonEncode($regions);
-
+                if ($json === false) {
+                    $json = 'false';
+                }
                 $this->_configCacheType->save($json, $cacheKey);
             }
             $this->_regionJson = $json;
diff --git a/composer.json b/composer.json
index 7d2f652018410..e45234c751e3b 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
         "AFL-3.0"
     ],
     "require": {
-        "php": "~5.4.11|~5.5.0",
+        "php": "~5.4.11|~5.5.0|~5.6.0",
         "zendframework/zend-stdlib": "2.3.1",
         "zendframework/zend-code": "2.3.1",
         "zendframework/zend-server": "2.3.1",
diff --git a/dev/tests/integration/framework/Magento/TestFramework/Annotation/ConfigFixture.php b/dev/tests/integration/framework/Magento/TestFramework/Annotation/ConfigFixture.php
index d1cf52c0ad8b6..f5bb55aa9639f 100644
--- a/dev/tests/integration/framework/Magento/TestFramework/Annotation/ConfigFixture.php
+++ b/dev/tests/integration/framework/Magento/TestFramework/Annotation/ConfigFixture.php
@@ -102,7 +102,8 @@ protected function _assignConfigData(\PHPUnit_Framework_TestCase $test)
             if (preg_match('/^.+?(?=_store\s)/', $configPathAndValue, $matches)) {
                 /* Store-scoped config value */
                 $storeCode = $matches[0] != 'current' ? $matches[0] : null;
-                list(, $configPath, $requiredValue) = preg_split('/\s+/', $configPathAndValue, 3);
+                $parts = preg_split('/\s+/', $configPathAndValue, 3);
+                list(, $configPath, $requiredValue) = $parts + ['', '', ''];
                 $originalValue = $this->_getConfigValue($configPath, $storeCode);
                 $this->_storeConfigValues[$storeCode][$configPath] = $originalValue;
                 $this->_setConfigValue($configPath, $requiredValue, $storeCode);