Cut 8.1.0 release changelog (#1828)

Author: ebeahan

CHANGELOG.md

@@ -3,6 +3,33 @@
 # 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/).
 
+## [8.1.0](https://github.com/elastic/ecs/compare/v8.0.1...v8.1.0)
+
+### Schema Changes
+
+#### Added
+
+* Added two new fields (sha384,tlsh) to hash schema and one field to pe schema (pehash). #1678
+* Added `email.*` beta field set. ##1688, #1705
+
+#### Removed
+
+- Removing `process.target.*` reuses from experimental schema. #1666
+- Removing RFC 0014 `pe.*` fields from experimental schema. #1670
+
+### Tooling and Artifact Changes
+
+#### Bugfixes
+
+* Fix invalid documentation link generation in component templates `_meta`. #1728
+
+#### Improvements
+
+* Update refs from master to main in USAGE.md etc #1658
+* Clean up trailing spaces and additional newlines in schemas #1667
+* Use higher compression as default in composable index template settings. #1712
+* Bump dependencies. #1782
+
 ## [8.0.1](https://github.com/elastic/ecs/compare/v8.0.0...v8.0.1)
 
 ### Tooling and Artifact Changes

CHANGELOG.next.md

@@ -30,40 +30,10 @@ Thanks, you're awesome :-) -->
 
 #### Added
 
-* Adding release notes section into ECS docs. #1800
-
 #### Improvements
 
 #### Deprecated
 
-## 8.1.0 (Hard Feature Freeze)
-
-### Schema Changes
-
-#### Added
-
-* Added two new fields (sha384,tlsh) to hash schema and one field to pe schema (pehash). #1678
-* Added `email.*` beta field set. ##1688, #1705
-
-#### Removed
-
-- Removing `process.target.*` reuses from experimental schema. #1666
-- Removing RFC 0014 `pe.*` fields from experimental schema. #1670
-
-### Tooling and Artifact Changes
-
-#### Bugfixes
-
-* Add `object` as fallback for `flattened` type. #1653
-* Fix invalid documentation link generation in component templates `_meta`. #1728
-
-#### Improvements
-
-* Update refs from master to main in USAGE.md etc #1658
-* Clean up trailing spaces and additional newlines in schemas #1667
-* Use higher compression as default in composable index template settings. #1712
-* Bump dependencies. #1782
-
 <!-- All empty sections:
 
 ## Unreleased