prepared CHANGELOG for 4.0.0-alpha.2 release

CHANGELOG.md

@@ -4,18 +4,19 @@ All notable changes to the solarium library will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
-### Added
-
-### Changed
 
-### Deprecated
+## [4.0.0-alpha.2]
+### Added
+- getSuggester() convenience method on Solarium\QueryType\Select\Query\Query
+- More integration tests
 
 ### Removed
+- Outdated symfony versions on test environment
 
 ### Fixed
-
-### Security
+- Don't escape the '*' in range queries
+- Return type of getHighlighting() on Solarium\QueryType\Select\Result\Result
+- Return type of getFacetSet() on Solarium\QueryType\Select\Result\Result
 
 
 ## [4.0.0-alpha.1]