diff --git a/.bumpversion.cfg b/.bumpversion.cfg
new file mode 100644
index 0000000..31fd79c
--- /dev/null
+++ b/.bumpversion.cfg
@@ -0,0 +1,6 @@
+[bumpversion]
+commit = True
+tag = False
+current_version = 1.0.1
+
+[bumpversion:file:setup.py]
diff --git a/.codacy.yml b/.codacy.yml
new file mode 100644
index 0000000..e09cd9e
--- /dev/null
+++ b/.codacy.yml
@@ -0,0 +1,8 @@
+---
+exclude_paths:
+  - '.github/**'
+  - '.vscode/**'
+  - 'CHANGELOG.md'
+  - 'CONTRIBUTING.md'
+  - 'docs/**'
+  - 'README.md'
diff --git a/.markdownlint.json b/.markdownlint.json
new file mode 100644
index 0000000..498e2ea
--- /dev/null
+++ b/.markdownlint.json
@@ -0,0 +1,4 @@
+{
+    "MD013": false,
+    "MD024": false
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..b270f69
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,91 @@
+# phpypam CHANGELOG
+
+## Unreleased
+
+---
+
+### New
+
+### Changes
+
+### Fixes
+
+### Breaks
+
+## 1.0.1 - (2021-01-04)
+
+### New
+
+* add markdownlint config
+* add changelog
+
+### Fixes
+
+* fix exception handling for connection errors
+
+## 1.0.0
+
+### New
+
+* documentation tool chain (#27)
+* Merge pull request #28 from cmeissner/contributing\_and\_documentation
+
+## 0.1.7
+
+### Fixes
+
+* We now should evaluate almost all not found messages and raise the correct Exception.
+
+## 0.1.6
+
+### New
+
+* handle not found execption for vrf
+
+## 0.1.5
+
+### Fixes
+
+* return controller paths not names
+
+### Breakes
+
+* returns controller paths not names
+
+## 0.1.4
+
+### New
+
+* some project stuff
+
+## 0.1.3
+
+### Fixes
+
+* fix typo
+
+## 0.1.2
+
+### New
+
+* detailed exception handling
+
+## 0.1.1
+
+### Fixes
+
+* Add exception handling for stupid error reporting of non existing subnets
+
+## 0.1.0
+
+### New
+
+* First more or less productive release. Feel free to report bugs and issues
+
+## 0.0.2
+
+### Changes
+
+* add controllers method
+* add first simple tests
+* extend documentation
diff --git a/phpypam/core/api.py b/phpypam/core/api.py
index 4e9cac4..68d326b 100644
--- a/phpypam/core/api.py
+++ b/phpypam/core/api.py
@@ -27,7 +27,9 @@ def __init__(self, url, app_id, username=None, password=None, token=None, encryp
 
         The costructor collects all data to connect to phpIPAM API. If all data is there it makes the connection to the given server.
 
-        :param url: The URL to a phpIPAM instance. It includes the protocol (`http` or `https`).
+        :param url: The URL to a phpIPAM instance. It includes the protocol (`https` or `http`).
+            As phpIPAM does not support `http` and `User token` by default you have to configure phpIPAM to allow unsecure connections.
+            But be aware on security risk in conjunction with this setting.
         :type url: str
         :param app_id: The app_id which is used for the API operations.
             For modifying operations it needs read/write access.
diff --git a/phpypam/core/exceptions.py b/phpypam/core/exceptions.py
index cdf0cfe..f94b981 100644
--- a/phpypam/core/exceptions.py
+++ b/phpypam/core/exceptions.py
@@ -39,7 +39,7 @@ def __init__(self, *args, code=None, message=None):
         elif self._code == 500:
             if self._message == 'Invalid username or password':
                 raise PHPyPAMInvalidCredentials(self._message)
-        elif self._code == 400:
+        elif self._code == 400 or self._code == 503:
             raise PHPyPAMInvalidSyntax(message=self._message)
 
         # super(PHPyPAMException, self).__init__(*args, **kwargs)
diff --git a/requirements-dev.txt b/requirements-dev.txt
index cd7420e..31f7732 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,5 @@
 wheel
+changelog-cli
 flake8
 flake8-colors
 flake8-docstrings
diff --git a/setup.py b/setup.py
index 96f5c7d..70e560c 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="phpypam",
-    version="1.0.0",
+    version="1.0.1",
     author="Christian Meißner",
     author_email="Christian Meißner <cme+codeaffen@meissner.sh>",
     description="Python API client library for phpIPAM installation",