Merge pull request #533 from janekmi/common-0.9.0-changelog

common: 0.9.0 changelog update

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.9.0-rc1] - 2020-09-28
+## [0.9.0-rc2] - 2020-10-01
 ### Added
-- XXX
+- This is the first official release of the librpma library.
+- The API provides the most flexible implementation of remote persistency
+via Appliance Persistency Method.
+- Multiple examples show how to use this API (including an example of how to
+build your own General Purpose Persistency Method implementation basing on
+the services provided by the librpma library).
+- An extensive documentation describes all guiding principles.