diff --git a/README.md b/README.md
index ff381f6..021f9ab 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,9 @@ class TestSystemExit
 }
 ```
 
-Note that in order to be able to trap system exit, the `ExitGuard` temporarily replaces the existing security manager (if any).
+The `ExitGuard` temporarily replaces the existing security manager.
+
+From version 1.2.0 on if a security guard existed before, it serves as a delegate for all security checks with the exception of the `checkExit`.
 
 ## Asserting Data Sent to `System.out`
 
@@ -91,6 +93,10 @@ Capturing data sent to `System.err` works in the exact same way as in the [`Syst
 
 Please check our [contribution guide](.github/CONTRIBUTING.md) to learn how you can help with the project, report errors or request features.
 
+## Changelog
+
+[Changelog](doc/changes/changelog.mk)
+
 ## Development
 
 ### Build Time Dependencies
diff --git a/doc/changes/changelog.md b/doc/changes/changelog.md
new file mode 100644
index 0000000..bee3298
--- /dev/null
+++ b/doc/changes/changelog.md
@@ -0,0 +1,4 @@
+# Changes
+
+* [1.2.0](changes_1.2.0.md)
+* [1.1.0](changes_1.1.0.md)
\ No newline at end of file
diff --git a/doc/changes/changes_1.1.0.md b/doc/changes/changes_1.1.0.md
new file mode 100644
index 0000000..c508f32
--- /dev/null
+++ b/doc/changes/changes_1.1.0.md
@@ -0,0 +1,11 @@
+# JUnit5 System Extensions 1.1.0, released 2019-12-28
+
+Code name: Mute output
+
+## Summary
+
+To mute the output (i.e. don't forward output to System.out / System.err) call stream.captureMuted() instead of stream.capture(). This can be useful to speed up unit tests.
+
+## Features
+
+* #16: Mute output of captured streams
\ No newline at end of file
diff --git a/doc/changes/changes_1.2.0.md b/doc/changes/changes_1.2.0.md
new file mode 100644
index 0000000..449a3db
--- /dev/null
+++ b/doc/changes/changes_1.2.0.md
@@ -0,0 +1,17 @@
+# JUnit5 System Extensions 1.2.0, released 2019-04-22
+
+Code name: Mute output
+
+## Summary
+
+When trapping `System.exit` calls, the `ExitGuardSecurityManager` now doesn't simply replace an existing security manager anymore. Instead it uses the existing one as a delegate for all checks except the exit check.
+
+This way applications that require a security manager don't change their behavior.
+
+## Features
+
+* #23: Delegate security manager calls to the original security manager
+
+## Refactoring
+
+* #21: Migrate to Maven Central
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 3ee5c31..36b4eeb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.itsallcode</groupId>
     <artifactId>junit5-system-extensions</artifactId>
-    <version>1.1.0</version>
+    <version>1.2.0</version>
     <name>JUnit5 System Extensions</name>
     <description>These extensions help testing behavior that is related to `System.x` calls like `exit(int).</description>
     <url>https://github.com/itsallcode/junit5-system-extensions</url>