update changelog

CHANGELOG.md

@@ -0,0 +1,22 @@
+# Change Log
+
+## [v1.1.0](https://github.com/prooph/memcached-snapshot-store/tree/v1.1.0)
+
+[Full Changelog](https://github.com/prooph/memcached-snapshot-store/compare/v1.0.0...v1.1.0)
+
+**Implemented enhancements:**
+
+- test php 7.2 on travis [\#3](https://github.com/prooph/memcached-snapshot-store/pull/3) ([prolic](https://github.com/prolic))
+
+**Merged pull requests:**
+
+- Restructure docs [\#2](https://github.com/prooph/memcached-snapshot-store/pull/2) ([codeliner](https://github.com/codeliner))
+
+## [v1.0.0](https://github.com/prooph/memcached-snapshot-store/tree/v1.0.0) (2017-04-08)
+**Implemented enhancements:**
+
+- initial implementation [\#1](https://github.com/prooph/memcached-snapshot-store/pull/1) ([prolic](https://github.com/prolic))
+
+
+
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*

composer.json

@@ -26,7 +26,7 @@
     "prefer-stable": true,
     "require": {
         "php": "^7.1",
-        "prooph/snapshot-store": "^1.1",
+        "prooph/snapshot-store": "^1.3",
         "ext-memcached": "^3.0"
     },
     "require-dev": {