diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000..87f9962
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,12 @@
+| Q                 | A
+| ------------------| ---------------
+| JsonClass version | x.y.z
+| PHP version       | x.y.z
+
+
+<!--
+- Please fill in this template according to your issue.
+- Please keep the table shown above at the top of your issue.
+- Please post code as text (using proper markup). Do not post screenshots of code.
+- Replace this comment by the description of your issue.
+-->
diff --git a/.github/lock.yml b/.github/lock.yml
new file mode 100644
index 0000000..d3604ae
--- /dev/null
+++ b/.github/lock.yml
@@ -0,0 +1,38 @@
+# Configuration for lock-threads - https://github.com/dessant/lock-threads
+
+# Number of days of inactivity before a closed issue or pull request is locked
+daysUntilLock: 365
+
+# Skip issues and pull requests created before a given timestamp. Timestamp must
+# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable
+skipCreatedBefore: false
+
+# Issues and pull requests with these labels will not be locked. Set to `[]` to disable
+exemptLabels: []
+
+# Label to add before locking, such as `outdated`. Set to `false` to disable
+lockLabel: false
+
+# Comment to post before locking. Set to `false` to disable
+lockComment: >
+  This thread has been automatically locked since there has not been
+  any recent activity after it was closed. Please open a new issue for
+  related bugs.
+
+# Assign `resolved` as the reason for locking. Set to `false` to disable
+setLockReason: true
+
+# Limit to only `issues` or `pulls`
+# only: issues
+
+# Optionally, specify configuration settings just for `issues` or `pulls`
+# issues:
+#   exemptLabels:
+#     - help-wanted
+#   lockLabel: outdated
+
+# pulls:
+#   daysUntilLock: 30
+
+# Repository to extend settings from
+# _extends: repo
diff --git a/.github/reaction.yml b/.github/reaction.yml
new file mode 100644
index 0000000..f21810b
--- /dev/null
+++ b/.github/reaction.yml
@@ -0,0 +1,25 @@
+# Configuration for reaction-comments - https://github.com/dessant/reaction-comments
+
+# Issues and pull requests with these labels accept reaction comments.
+# Set to `[]` to disable
+exemptLabels: []
+
+# Replace matching comments with this message, `{comment-author}` is an
+# optional placeholder. Set to `false` to disable
+reactionComment: >
+  :wave: @{comment-author}, did you mean to use
+  a [reaction](https://git.io/vhzhC) instead?
+
+# Limit to only `issues` or `pulls`
+# only: issues
+
+# Optionally, specify configuration settings just for `issues` or `pulls`
+# issues:
+#   exemptLabels:
+#     - party-parrot
+
+# pulls:
+#   reactionComment: false
+
+# Repository to extend settings from
+# _extends: repo
diff --git a/.github/release-drafter.yml b/.github/release-drafter.yml
new file mode 100644
index 0000000..b3efadf
--- /dev/null
+++ b/.github/release-drafter.yml
@@ -0,0 +1,13 @@
+name-template: v$NEXT_PATCH_VERSION
+categories:
+  - title: Features
+    label: feature
+  - title: Bug Fixes
+    label: bug
+  - title: Maintenance
+    label: maintenance
+tag-template: - $TITLE @$AUTHOR (#$NUMBER)
+template: |
+  ## Changes
+
+  $CHANGES
diff --git a/.github/stale.yml b/.github/stale.yml
new file mode 100644
index 0000000..dc90e5a
--- /dev/null
+++ b/.github/stale.yml
@@ -0,0 +1,17 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 60
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - pinned
+  - security
+# Label to use when marking an issue as stale
+staleLabel: wontfix
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false
diff --git a/.github/tests_checker.yml b/.github/tests_checker.yml
new file mode 100644
index 0000000..3f8db6f
--- /dev/null
+++ b/.github/tests_checker.yml
@@ -0,0 +1,3 @@
+comment: 'Could you please add tests to make sure this change works as expected?',
+fileExtensions: ['.php']
+testDir: 'tests'
diff --git a/composer.json b/composer.json
index d1be1ac..198bece 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
   "require-dev": {
     "friendsofphp/php-cs-fixer": "^2.13",
     "localheinz/composer-normalize": "^1.0.0",
-    "localheinz/phpstan-rules": "^0.4",
+    "localheinz/phpstan-rules": "^0.4 || ^0.5",
     "pepakriz/phpstan-exception-rules": "^0.3 || ^0.4",
     "phpstan/phpstan": "^0.10",
     "phpstan/phpstan-deprecation-rules": "^0.10",
diff --git a/tests/JsonTest.php b/tests/JsonTest.php
index 32eb225..954ac04 100644
--- a/tests/JsonTest.php
+++ b/tests/JsonTest.php
@@ -63,7 +63,7 @@ public function testDecode(): void
      */
     public function testEncodeFail(): void
     {
-        $f = fopen(__FILE__, 'rb');
+        $f = fopen(__FILE__, 'r');
 
         $this->expectException(EncodeErrorException::class);
         $this->expectExceptionMessage('Type is not supported');