Bumped minimum supported PHP version to 5.6.

Author: weierophinney

.travis.yml

@@ -24,24 +24,15 @@ env:
 matrix:
   fast_finish: true
   include:
-    - php: 5.5
-      env:
-        - DEPS=lowest
-    - php: 5.5
-      env:
-        - DEPS=locked
-        - DEPLOY_DOCS="$(if [[ $TRAVIS_BRANCH == 'master' && $TRAVIS_PULL_REQUEST == 'false' ]]; then echo -n 'true' ; else echo -n 'false' ; fi)"
-        - PATH="$HOME/.local/bin:$PATH"
-    - php: 5.5
-      env:
-        - DEPS=latest
     - php: 5.6
       env:
         - DEPS=lowest
     - php: 5.6
       env:
         - DEPS=locked
         - TEST_COVERAGE=true
+        - DEPLOY_DOCS="$(if [[ $TRAVIS_BRANCH == 'master' && $TRAVIS_PULL_REQUEST == 'false' ]]; then echo -n 'true' ; else echo -n 'false' ; fi)"
+        - PATH="$HOME/.local/bin:$PATH"
     - php: 5.6
       env:
         - DEPS=latest

composer.json

@@ -13,7 +13,7 @@
         }
     },
     "require": {
-        "php": "^5.5 || ^7.0",
+        "php": "^5.6 || ^7.0",
         "zendframework/zend-eventmanager": "^3.0",
         "zendframework/zend-http": "^2.5.4",
         "zendframework/zend-modulemanager": "^2.7.1",

doc/book/migration/to-v3-0.md

@@ -49,6 +49,8 @@ Additionally, the following components require their v3 releases:
 - zend-servicemanager
 - zend-stdlib
 
+The minimum supported PHP version was bumped to 5.6.
+
 ## Application class
 
 The following changes were made to the `Zend\Mvc\Application` constructor: