Update changelog

Author: gavv

docs/sphinx/development/changelog.rst

@@ -19,8 +19,8 @@ Changelog
     Tests
     Documentation
 
-Version 0.2.0 (Dec X, 2022)
-===========================
+Version 0.2.0 (Dec 19, 2022)
+============================
 
 Features
 --------
@@ -80,11 +80,6 @@ Portability
 * continuous integration for Android
 * testing on Raspberry Pi 4
 
-Security
---------
-
-* use CSPRNG for initializing of RTP fields
-
 Internals
 ---------