diff --git a/.github/workflows/releaseDeploy.yml b/.github/workflows/releaseDeploy.yml
index 96c4a513f..d823012b6 100644
--- a/.github/workflows/releaseDeploy.yml
+++ b/.github/workflows/releaseDeploy.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Update all submodules
         run: |
@@ -72,55 +72,49 @@ jobs:
 
       - name: Upload build artifact (Windows)
         if: matrix.os == 'windows-latest'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.artifact-name }}
           path: ${{github.workspace}}/build/RAYX-*-win64.zip
-
+          if-no-files-found: error
+          
       - name: Upload build artifact (Ubuntu)
         if: matrix.os == 'ubuntu-latest'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.artifact-name }}
           path: ${{github.workspace}}/build/RAYX-*-Linux.deb
+          if-no-files-found: error
 
-  create-release:
+  release:
+    name: Create Release
     needs: build-and-release
     runs-on: ubuntu-latest
     steps:
+      # Checkout CHANGELOG.md
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: CHANGELOG.md
+
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           path: ${{github.workspace}}/artifacts
 
-      - name: Create Release
-        id: create_release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract version from tag
+        id: get_version
+        run: echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
+
+      - name: Create and Upload Release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
         with:
-          tag_name: ${{ github.ref_name }}
-          release_name: Release ${{ github.ref_name }}
-          body: This will be updated soon...
-          draft: false
-          prerelease: false
-
-      - name: Upload Artifact to Release (Windows)
-        uses: actions/upload-release-asset@v1
+          body_path: ${{github.workspace}}/CHANGELOG.md
+          files: |
+            ${{github.workspace}}/artifacts/rayx-win64.zip/*.zip
+            ${{github.workspace}}/artifacts/rayx-Linux.deb/*.deb
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ${{github.workspace}}/artifacts/rayx-win64.zip/rayx-win64.zip
-          asset_name: rayx-win64.zip
-          asset_content_type: application/zip
 
-      - name: Upload Artifact to Release (Ubuntu)
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ${{github.workspace}}/artifacts/rayx-Linux.deb/rayx-Linux.deb
-          asset_name: rayx-Linux.deb
-          asset_content_type: application/x-deb
\ No newline at end of file
+
diff --git a/.github/workflows/testUbuntu.yml b/.github/workflows/testUbuntu.yml
index 5d617c937..85c9ff13a 100644
--- a/.github/workflows/testUbuntu.yml
+++ b/.github/workflows/testUbuntu.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Update all submodules
         run: |
@@ -47,7 +47,7 @@ jobs:
         run: cpack -G DEB
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: RAYX
           path: ${{github.workspace}}/build/RAYX-*.*.*-Linux.deb
diff --git a/.github/workflows/testWindows.yml b/.github/workflows/testWindows.yml
index 141610ae2..d44797bad 100644
--- a/.github/workflows/testWindows.yml
+++ b/.github/workflows/testWindows.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: windows-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Update all submodules
         run: |
@@ -49,7 +49,7 @@ jobs:
           cpack -G ZIP
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: RAYX
           path: ${{github.workspace}}/build/RAYX-*.*.*-win64.zip
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 000000000..485cd9972
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Changes
+
+- rayx-core:
+  - Added optical elements
+    - Paraboloid 
+  - Added light sources
+    - Simple Undulator
+    - Pixel Source
+    - Dipole Source
+  - Improved code consistency for optical elements and light sources
+  - Improved test suite
+  - Fixes for RZP tracing
+- rayx:
+  - Added more options to customize the export of rays and speed up the tracing
+  - Added option to choose GPU
+  - Improved runtime by optimizing data handling
+- rayx-ui:
+  - Added orthographic camera
+  - Added footprints/heatmaps/histograms for simple optical elements
+  - Changed default camera position and orientation
+  - Jump to light source is possible now
+  - Correctly render slits
+  - Fixed positioning of light sources
+  - Fixed triangulation bugs
+  - Fixed general rendering bugs
+- General bugfixes and documentation updates
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ee8ff1ab..baa53e931 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.15 FATAL_ERROR)
 
 # ---- Project ----
-project(RAYX VERSION 0.19.3)
+project(RAYX VERSION 0.19.0)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 # -----------------