diff --git a/.github/workflows/composer-version-guard.yml b/.github/workflows/composer-version-guard.yml
new file mode 100644
index 0000000..75d8060
--- /dev/null
+++ b/.github/workflows/composer-version-guard.yml
@@ -0,0 +1,125 @@
+name: Guard composer.json version
+
+on:
+  pull_request:
+    branches: [develop]
+
+env:
+  GITHUB_TOKEN: ${{ secrets.GH_AUTOMATION_TOKEN }}
+
+jobs:
+  no-manual-version-bump:
+    name: Disallow manual composer.json version bumps
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write   # zum Kommentieren/Löschen
+      issues: write          # PR-Kommentare sind Issue-Kommentare
+
+    env:
+      GH_TOKEN: ${{ github.token }}   # gh CLI Auth
+      REPO: ${{ github.repository }}
+      PR_NUMBER: ${{ github.event.pull_request.number }}
+      BASE_REF: ${{ github.base_ref }}
+
+    steps:
+      - name: Checkout (current PR head)
+        uses: actions/checkout@v6
+
+      - name: Ensure jq and gh are available
+        run: |
+          jq --version
+          gh --version
+
+      - name: Compare composer.json version via jq
+        id: check
+        run: |
+          set -euo pipefail
+
+          # composer.json im Base-Branch RAW abrufen (stabiler als Git-Fetch)
+          base_json="$(gh api -H 'Accept: application/vnd.github.raw' \
+            repos/${REPO}/contents/composer.json?ref=${BASE_REF} || true)"
+
+          # Falls composer.json im Base nicht existiert (Mono-Repos, Erst-Add etc.)
+          if [ -z "${base_json}" ]; then
+            base_ver=""
+          else
+            base_ver="$(printf '%s' "${base_json}" | jq -r '.version // empty')"
+          fi
+
+          # Head-Version aus dem Arbeitsverzeichnis
+          head_ver="$(jq -r '.version // empty' composer.json)"
+
+          echo "Base version: ${base_ver}"
+          echo "Head version: ${head_ver}"
+
+          if [ "${base_ver}" != "${head_ver}" ]; then
+            echo "has_version_change=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "has_version_change=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Upsert PR comment if version changed
+        if: steps.check.outputs.has_version_change == 'true'
+        run: |
+          set -euo pipefail
+          MARK="<!-- composer-version-guard -->"
+
+          # Prüfen, ob schon ein Kommentar mit unserem Marker existiert
+          existing_ids=$(gh api --paginate \
+            repos/${REPO}/issues/${PR_NUMBER}/comments \
+            --jq "[ .[] | select( (.body // \"\") | contains(\"${MARK}\") ) | .id ] | .[]" || true)
+
+          # Kommentar-Text vorbereiten (mit Marker, damit wir ihn später sicher finden/löschen)
+          cat > /tmp/comment.md <<'EOF'
+            <!-- composer-version-guard -->
+            ⚠️ **Bitte die `version` in `composer.json` nicht manuell ändern.**
+          
+            Releases werden automatisch erstellt (.github/workflows/release.yml).
+            Dieser PR ändert die Eigenschaft `version` – bitte die Änderung zurücknehmen. 
+            Sobald die Version wieder unverändert ist, wird dieser Hinweis automatisch entfernt.
+          EOF
+          
+          if [ -z "${existing_ids}" ]; then
+          # Neuen Kommentar erstellen
+          gh pr comment "${PR_NUMBER}" --body-file /tmp/comment.md
+          else
+          # Optional: vorhandene(n) Kommentar auf den aktuellen Text setzen (idempotent)
+          for id in ${existing_ids}; do
+          gh api \
+          --method PATCH \
+            "repos/${REPO}/issues/comments/${id}" \
+            -f body="@/tmp/comment.md"
+            done
+            fi
+
+      - name: Remove previous PR comments when resolved
+        if: steps.check.outputs.has_version_change != 'true'
+        run: |
+          set -euo pipefail
+          MARK="<!-- composer-version-guard -->"
+          
+          # Alle Kommentare mit unserem Marker einsammeln
+          ids=$(gh api --paginate \
+            repos/${REPO}/issues/${PR_NUMBER}/comments \
+            --jq "[ .[] | select( (.body // \"\") | contains(\"${MARK}\") ) | .id ] | .[]" || true)
+          
+          if [ -n "${ids}" ]; then
+            echo "Removing ${ids}..."
+            for id in ${ids}; do
+              gh api -X DELETE "repos/${REPO}/issues/comments/${id}" || true
+            done
+          else
+            echo "No previous guard comments to remove."
+          fi
+
+      - name: Fail the job if version changed
+        if: steps.check.outputs.has_version_change == 'true'
+        run: |
+          echo "::error::composer.json enthält eine Änderung an \"version\". Releases erfolgen automatisch – bitte diese Änderung entfernen."
+          exit 1
+
+      - name: Success
+        if: steps.check.outputs.has_version_change != 'true'
+        run: |
+          echo "OK: Keine manuelle Änderung an composer.json:version."
diff --git a/.github/workflows/release-sync.yml b/.github/workflows/release-sync.yml
new file mode 100644
index 0000000..2a5cacb
--- /dev/null
+++ b/.github/workflows/release-sync.yml
@@ -0,0 +1,83 @@
+name: Sync release artifacts to develop
+
+on:
+  workflow_run:
+    workflows: ["Create release"]
+    types: [completed]
+
+permissions:
+  contents: write
+
+# Cannot use overall env because then the sync fails with the wrong user
+
+jobs:
+  sync-to-develop:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout (full history)
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.GH_AUTOMATION_TOKEN }}
+
+      - name: Configure git & auth
+        run: |
+          git config user.name  "${GIT_AUTHOR_NAME}"
+          git config user.email "${GIT_AUTHOR_EMAIL}"
+          git remote set-url origin "https://x-access-token:${GITHUB_TOKEN}@github.com/${{ github.repository }}.git"
+
+      - name: Fetch branches (heads only, no tags; avoid ambiguous refs)
+        run: |
+          set -euo pipefail
+
+          echo "Fetching main and develop branches..."
+          git fetch --no-tags --prune origin \
+            +refs/heads/main:refs/remotes/origin/main \
+            +refs/heads/develop:refs/remotes/origin/develop
+
+      - name: Sync composer.json & CHANGELOG.md from main to develop
+        id: sync
+        run: |
+          set -euo pipefail
+
+          echo "Configuring git user for pushing changes..."
+          git config user.email "websolutions@netlogix.de"
+          git config user.name "netlogix-bot"
+          
+          # Prüfe, ob sich genau diese Dateien zwischen main und develop unterscheiden
+          echo "Checking for differences in composer.json and CHANGELOG.md between main and develop..."
+          if git diff --quiet \
+           refs/remotes/origin/develop..refs/remotes/origin/main \
+           -- composer.json CHANGELOG.md; then
+          echo "nothing_to_sync=true" >> "$GITHUB_OUTPUT"
+          exit 0
+          fi
+          
+          # Wechsle auf lokalen develop, der auf remote/develop basiert
+          echo "Checking out develop branch..."
+          git checkout -B develop refs/remotes/origin/develop
+          
+          # Übernehme die zwei Dateien exakt aus main
+          echo "Checking out composer.json and CHANGELOG.md from main branch..."
+          git checkout refs/remotes/origin/main -- composer.json CHANGELOG.md
+          
+          # Stage & Commit mit [skip ci], damit keine Workflows feuern
+          echo "Committing changes..."
+          git add composer.json CHANGELOG.md
+          git commit -m "[release-sync] chore: sync composer.json & CHANGELOG.md from main to develop [skip ci]" || {
+            echo "nothing_to_sync=true" >> "$GITHUB_OUTPUT"
+            exit 0
+          }
+          
+          echo "Pushing changes to develop branch..."
+          git push origin HEAD:develop
+          echo "nothing_to_sync=false" >> "$GITHUB_OUTPUT"
+          echo "done"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_AUTOMATION_TOKEN }}
+
+      - name: Done
+        if: steps.sync.outputs.nothing_to_sync == 'true'
+        run: echo "Nichts zu syncen (composer.json/CHANGELOG.md identisch)."
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..9081a1e
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,29 @@
+name: Create release
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      - name: Setup Node
+        uses: actions/setup-node@v6
+        with:
+          node-version: 20
+      - name: Install Dependencies
+        run: npm install
+      - name: Semantic Release
+        uses: cycjimmy/semantic-release-action@v6
+        id: semantic   # Need an `id` for output variables
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_AUTOMATION_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 7579f74..92d7233 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
+/.idea
 vendor
 composer.lock
+
+/node_modules/
\ No newline at end of file
diff --git a/.releaserc b/.releaserc
new file mode 100644
index 0000000..cd73ca3
--- /dev/null
+++ b/.releaserc
@@ -0,0 +1,31 @@
+{
+    "branches": [
+        "main",
+    ],
+    "plugins": [
+        "@semantic-release/commit-analyzer",
+        "@semantic-release/release-notes-generator",
+        [
+            "@semantic-release/changelog",
+            {
+                "changelogFile": "CHANGELOG.md"
+            }
+        ],
+        "@iwavesmedia/semantic-release-composer",
+        [
+            "@semantic-release/git",
+            {
+                "assets": [
+                    "composer.json",
+                    "CHANGELOG.md"
+                ]
+            }
+        ],
+        [
+            "@semantic-release/github",
+            {
+                "successCommentCondition": "<% return issue.pull_request; %>"
+            }
+        ]
+    ]
+}
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..53d94fe
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,29 @@
+{
+  "name": "task-graph-solver",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "@iwavesmedia/semantic-release-composer": "^1.0.0"
+      }
+    },
+    "node_modules/@iwavesmedia/semantic-release-composer": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@iwavesmedia/semantic-release-composer/-/semantic-release-composer-1.1.0.tgz",
+      "integrity": "sha512-qhvrNEHgvMEz6nF3C1jkaJkGlztU1wiQdI/BDYiDIq5N++ypy1tAPUT+a6iezqtNErWOoDU1Oi4lK3DklxfGGA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@semantic-release/error": "^2.2.0"
+      }
+    },
+    "node_modules/@semantic-release/error": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@semantic-release/error/-/error-2.2.0.tgz",
+      "integrity": "sha512-9Tj/qn+y2j+sjCI3Jd+qseGtHjOAeg7dU2/lVcqIQ9TV3QDaDXDYXcoOHU+7o2Hwh8L8ymL4gfuO7KxDs3q2zg==",
+      "dev": true,
+      "license": "MIT"
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..c346452
--- /dev/null
+++ b/package.json
@@ -0,0 +1,5 @@
+{
+  "devDependencies": {
+    "@iwavesmedia/semantic-release-composer": "^1.0.0"
+  }
+}