finalize changelog for 9.3 release (#2578)

Author: kgeller

CHANGELOG.md

@@ -3,6 +3,21 @@
 # CHANGELOG
 All notable changes to this project will be documented in this file based on the [Keep a Changelog](http://keepachangelog.com/) Standard. This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [9.3.0](https://github.com/elastic/ecs/compare/v9.2.0...v9.3.0)
+
+### Schema Changes
+
+#### Added
+
+* Added `cloud` and `orchestrator` as allowed values for `entity.type`. #2567
+* Allow entity fields at root level. #2567
+* Added `entity.target` for self-nesting. #2567
+* Added the target field to be nested under host #2571
+
+#### Improvements
+
+* Added details for implementation of url.query to avoid ambiguity #2488
+
 ## [9.2.0](https://github.com/elastic/ecs/compare/v9.1.0...v9.2.0)
 
 ### Schema Changes

CHANGELOG.next.md

@@ -6,21 +6,6 @@
 
 Thanks, you're awesome :-) -->
 
-## 9.3.0 (Feature Freeze)
-
-### Schema Changes
-
-#### Added
-
-* Added `cloud` and `orchestrator` as allowed values for `entity.type`. #2567
-* Allow entity fields at root level. #2567
-* Added `entity.target` for self-nesting. #2567
-* Added the target field to be nested under host #2571
-
-#### Improvements
-
-* Added details for implementation of url.query to avoid ambiguity #2488
-
 ## Unreleased
 
 ### Schema Changes
@@ -31,15 +16,8 @@ Thanks, you're awesome :-) -->
 
 #### Added
 
-* Added `cloud` and `orchestrator` as allowed values for `entity.type`. #2567
-* Allow entity fields at root level. #2567
-* Added `entity.target` for self-nesting. #2567
-* Added the target field to be nested under host #2571
-
 #### Improvements
 
-* Added details for implementation of url.query to avoid ambiguity #2488
-
 #### Deprecated
 
 ### Tooling and Artifact Changes