Fixed #457 - Inconsistent documentation of minimum required Maven ver…

…sion

- 3.8.1 as been agreed upon to be the minimum for now
- gh-pages need to refreshed from adoc
- added link to contribution guide as well
- updated release notes

README.md

@@ -63,7 +63,7 @@ Of course there is a lot of convenience integrated into it to make integration t
 The requirements to write integration tests with the integration testing framework are the following:
 
 * JDK8+
-* Apache Maven 3.8.4 or above.
+* Apache Maven 3.8.1 or above.
 
 ## The Maven Configuration
 
@@ -322,6 +322,11 @@ Code coverage via:
 ```bash
 mvn clean verify org.jacoco:jacoco-maven-plugin:report
 ```
+
+# Contributing
+
+If you want to contribute, there is a [contribution guide](CONTRIBUTING.md) for you.
+
 
 [food]: https://en.wikipedia.org/wiki/Eating_your_own_dog_food
 [jdkbuilds]: https://github.com/khmarbaise/maven-it-extension/actions?query=workflow%3AJDKBuilds

itf-documentation/src/main/asciidoc/release-notes/_release-notes-0.14.0.adoc

@@ -34,6 +34,7 @@
 :issue-458: https://github.com/khmarbaise/maven-it-extension/issues/458[Fixed #458]
 :issue-463: https://github.com/khmarbaise/maven-it-extension/issues/463[Fixed #463]
 :issue-464: https://github.com/khmarbaise/maven-it-extension/issues/464[Fixed #464]
+:issue-457: https://github.com/khmarbaise/maven-it-extension/issues/457[Fixed #457]
 
 :release_0_14_0: https://github.com/khmarbaise/maven-it-extension/milestone/14
 
@@ -74,6 +75,7 @@
 
 * {issue-444} - Upgrade central link
 * {issue-449} - Runtime requirement in docs is wrongly Maven 3.1.0
+* {issue-457} - Inconsistent documentation of minimum required Maven version
 
 
 The full release notes can be found here {release_0_14_0}[Release 0.14.0].

itf-documentation/src/main/asciidoc/usersguide/usersguide.adoc

@@ -140,7 +140,7 @@ of this extension.
 The requirements are:
 
 * JDK8+
-* Apache Maven 3.6.3 or above.
+* Apache Maven 3.8.1 or above.
 
 The first step is to add the appropriate dependencies to your project. They are usually with `test` scope,
 cause you only need them during the integration tests.

pom.xml

@@ -64,6 +64,8 @@
     <automatic-module-name>com.soebes.itf.extension</automatic-module-name>
     <maven-plugin-plugin.version>3.10.2</maven-plugin-plugin.version>
     <maven-resolver.version>1.9.18</maven-resolver.version>
+    <!-- The minimum maven version we expect to build with. -->
+    <minimum.maven.version>3.8.1</minimum.maven.version>
   </properties>
 
   <dependencyManagement>