📚 Add information about breaking changes

packages/cli/BREAKING-CHANGES.md

@@ -0,0 +1,17 @@
+# n8n Breaking Changes
+
+This list shows all the versions which include breaking changes and how to upgrade
+
+## 0.18.0
+
+### What changed?
+
+Because of a typo very often `reponse` instead of `response` got used in code. So also on the Webhook-Node. Its parameter `reponseMode` had to be renamed to correct spelling `responseMode`.
+
+### When is action necessary?
+
+When Webhook-Nodes get used which have "Response Mode" set to "Last Node".
+
+### How to upgrade:
+
+After upgrading open all workflows which contain the concerning Webhook-Nodes and set "Response Mode" again manually to "Last Node".

packages/cli/README.md

@@ -24,6 +24,7 @@ is there currently not much documentation. That will hopefully change soon.
 - [Run n8n on own server](#run-n8n-on-own-server)
 - [Hosted n8n](#hosted-n8n)
 - [What does n8n mean and how do you pronounce it](#what-does-n8n-mean-and-how-do-you-pronounce-it)
+- [Upgrading](#upgrading)
 - [License](#license)
 - [Development](#development)
 <!-- /TOC -->
@@ -327,6 +328,12 @@ did not hear anybody complain there. So I guess it should be ok.
 
 
 
+## Upgrading
+
+Before you upgrade to the latest version make sure to check here if there are any breaking changes which concern you:
+[Breaking Changes](https://github.com/n8n-io/n8n/blob/master/packages/cli/BREAKING-CHANGES.md)
+
+
 ## License
 
 [Apache 2.0 with Commons Clause](https://github.com/n8n-io/n8n/blob/master/packages/cli/LICENSE.md)