Prefer stable packages (#376)

rvanlaak · Nyholm · commit 151f3dbf90a3 · 2020-01-06T19:38:42.000+01:00
* Prefer stable

* fix phpstan
diff --git a/composer.json b/composer.json
@@ -57,6 +57,7 @@
         "test-ci": "vendor/bin/phpunit --coverage-text --coverage-clover=build/coverage.xml Tests/Unit"
     },
     "minimum-stability": "dev",
+    "prefer-stable": true,
     "extra": {
         "branch-alias": {
             "dev-master": "0.10-dev"
