AuthorizeNet · gnongsie · Dec 5, 2018 · Aug 16, 2018 · Aug 21, 2018 · Nov 16, 2018
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,6 @@
 language: python
 
 sudo: false
-
 env:
   - TEST_SUITE=samples
   - TEST_SUITE=coverage

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -0,0 +1,8 @@
++ Thanks for contributing to the Authorize.Net Python SDK.
+
++ Before you submit a pull request, we ask that you consider the following:
+
+     - Submit an issue to state the problem your pull request solves or the funtionality that it adds. We can then advise on the feasability of the pull request, and let you know if there are other possible solutions.
+     - Part of the SDK is auto-generated based on the XML schema. Due to this auto-generation, we cannot merge contributions for request or response classes. You are welcome to open an issue to report problems or suggest improvements. Auto-generated classes are inside [sdk-python/authorizenet/apicontractsv1.py](https://github.com/AuthorizeNet/sdk-python/tree/master/authorizenet) and [sdk-python/authorizenet/apicontrollers.py](https://github.com/AuthorizeNet/sdk-python/tree/master/authorizenet) folders, except [sdk-python/authorizenet/apicontrollersbase.py](https://github.com/AuthorizeNet/sdk-python/tree/master/authorizenet).
+     - Recent changes will be in [the future branch](https://github.com/AuthorizeNet/sdk-python/tree/future). Before submitting an issue or pull request, check the future branch first to see if a fix has already been merged.
+     - **Always use the future branch for pull requests.** We will first merge pull requests to the future branch, before pushing to the master branch for the next release.
diff --git a/README.md b/README.md
@@ -14,6 +14,10 @@
 
 _Note: Our goal is ensuring this SDK is compatible with Python 2.7+, 3.4+ and PyPy, but at the moment we're primarily testing against Python 2.7._
 
+### Contribution  
+  - If you need information or clarification about any Authorize.Net features, please create an issue for it. Also you can search in the [Authorize.Net developer community](https://community.developer.authorize.net/).
+  - Before creating pull requests, please read [the contributors guide](CONTRIBUTING.md).
+
 ### TLS 1.2
 The Authorize.Net APIs only support connections using the TLS 1.2 security protocol. It's important to make sure you have new enough versions of all required components to support TLS 1.2. Additionally, it's very important to keep these components up to date going forward to mitigate the risk of any security flaws that may be discovered in your system or any libraries it uses.
 

diff --git a/authorizenet/apicontractsv1.py b/authorizenet/apicontractsv1.py