Update changelog

Author: kohlschuetter

src/site/markdown/changelog.md

@@ -10,12 +10,14 @@ artifact (`<type>pom</type>`); see [Add junixsocket to your project](dependency.
 
 ## Noteworthy changes
 
-**Users of junixsocket are strongly advised to upgrade to version 2.7.0 or newer**
+**Users of junixsocket are strongly advised to upgrade to version 2.7.2 or newer**
 
-### _(2023-09-XX)_ **junixsocket 2.7.2**
+### _(2023-09-15)_ **junixsocket 2.7.2**
 
 - Fix SelectionKey logic (regression introduced in 2.7.1)
+- Fix selftest-android dependency (some tests would always fail)
 - Improve AFSocketAddress creation, skip DNS resolution on Android
+- Add demo code for interacting with Apache Mina and Netty
 - Code cleanup
 
 ### _(2023-09-09)_ **junixsocket 2.7.1**