diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c5c5960..f0bc4eb5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ 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).
 
+## 0.4.3
+### Added
+- Added GitHub action for publishing edc extension to maven central repository.
+## fixed
+- Fixed regex pattern for SpecificAssetId value field. Now special characters like '+' or '=' are also allowed.
+
 ## 0.4.2
 ### Added
 - Added lookup api test in aas-registry-e2e-test action
diff --git a/backend/src/main/resources/static/aas-registry-openapi.yaml b/backend/src/main/resources/static/aas-registry-openapi.yaml
index 7a2aa935..465c9038 100644
--- a/backend/src/main/resources/static/aas-registry-openapi.yaml
+++ b/backend/src/main/resources/static/aas-registry-openapi.yaml
@@ -1480,7 +1480,7 @@ components:
             value:
               maxLength: 2000
               minLength: 1
-              pattern: "^([\\t\\n\\r \\_\\.\\/\\:\\#\\-a-zA-Z0-9]|[\\ud800\\udc00-\\ud800\\udfff]|[\\ud801\\udc00-\\udbfe\\udfff]|[\\udbff\\udc00-\\udbff\\udfff])*+$"
+              pattern: "^([\\t\\n\\r -\ud7ff\ue000-\ufffd]|\\ud800[\\udc00-\\udfff]|[\\ud801-\\udbfe][\\udc00-\\udfff]|\\udbff[\\udc00-\\udfff])*$"
               type: string
             externalSubjectId:
               $ref: '#/components/schemas/Reference'