[Changed]

 - Most of the testing packages brakes on PHP5.5 and 5.6 with "latest" dependencies due to its outdated nature so these configurations are removed from CI testing

.travis.yml

@@ -14,19 +14,13 @@ matrix:
         - php: 5.5
           env:
               - DEPS=locked
-        - php: 5.5
-          env:
-              - DEPS=latest
         - php: 5.6
           env:
               - DEPS=lowest
         - php: 5.6
           env:
               - DEPS=locked
               - TEST_COVERAGE=true
-        - php: 5.6
-          env:
-              - DEPS=latest
         - php: 7.0
           env:
               - DEPS=lowest