Best Plugin to notify the new job and configuration changes in Jenkins?

What is the best plugin to be used in the Jenkins to notify the creation of the New job and the any changes in the Jenkins ?

What is used to track the changes between builds in Jenkins?

The simplest way to know what has changed on your Jenkins builds! Last Changes is a Jenkin plugin that shows rich VCS diffs between builds. Only Git and Svn based projects are supported.

How do you see who made changes in Jenkins?

To use the Job Configuration History plugin: Log in to the Jenkins web UI as an administrator using the FQDN of your cloud endpoint and port 8081. For example, https://cloud.example.com:8081. Navigate to Job Config History > Show job configs only. Click the required job and review the list of recorded changes.

Two Plugins:

Job Config History, for job changes: https://wiki.jenkins-ci.org/display/JENKINS/JobConfigHistory+Plugin

Audit Trail Plugin, For job creation/deletion/execution/etc: https://wiki.jenkins-ci.org/display/JENKINS/Audit+Trail+Plugin