Prepare 9.2 changelog (#2540)

Prepare changelog for 9.2

Author: mjwolf

CHANGELOG.md

@@ -3,6 +3,17 @@
 # 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/).
 
+## [9.2.0](https://github.com/elastic/ecs/compare/v9.1.0...v9.2.0)
+
+### Schema Changes
+
+#### Added
+
+* Add `device` value to `event.type` #2524
+* Add new `device` fields #2530
+* Added `entity` fieldset as beta #2537
+
+
 ## [9.1.0](https://github.com/elastic/ecs/compare/v9.0.0...v9.1.0)
 
 ### Schema Changes

CHANGELOG.next.md

@@ -6,15 +6,31 @@
 
 Thanks, you're awesome :-) -->
 
-## 9.2.0 (Feature Freeze)
+## Unreleased
 
 ### Schema Changes
 
+#### Breaking changes
+
+#### Bugfixes
+
+#### Added
+
+#### Improvements
+
+#### Deprecated
+
+### Tooling and Artifact Changes
+
+#### Breaking changes
+
+#### Bugfixes
+
 #### Added
 
-* Add `device` value to `event.type` #2524
-* Add new `device` fields #2530
-* Added `entity` fieldset as beta #2537
+#### Improvements
+
+#### Deprecated
 
 <!-- All empty sections:
 

docs/release-notes/index.md

@@ -20,6 +20,16 @@ To check for security updates, go to [Security announcements for the Elastic sta
 % ### Fixes [ecs-next-fixes]
 % *
 
+
+## 9.2.0 [ecs-9-2-0-release-notes]
+
+### Features and enhancements [ecs-9-2-0-features-enhancements]
+
+* Add `device` value to `event.type` [#2524](https://github.com/elastic/ecs/pull/2524)
+* Add new `device` fields [#2530](https://github.com/elastic/ecs/pull/2530)
+* Added `entity` fieldset as beta [#2537](https://github.com/elastic/ecs/pull/2537)
+
+
 ## 9.0.0 [ecs-9-0-0-release-notes]
 
 ### Features and enhancements [ecs-9-0-0-features-enhancements]