diff --git a/.github/workflows/release-core.yml b/.github/workflows/release-core.yml
new file mode 100644
index 00000000..b0bf97f4
--- /dev/null
+++ b/.github/workflows/release-core.yml
@@ -0,0 +1,135 @@
+name: Release Partner Core
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Release tag, for example rel-v0.5.0"
+        required: true
+        type: string
+  push:
+    tags:
+      - "rel-v*"
+
+permissions:
+  contents: write
+
+jobs:
+  release-core:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Resolve release metadata
+        id: release
+        shell: bash
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            TAG="${{ inputs.tag }}"
+          else
+            TAG="${GITHUB_REF_NAME}"
+          fi
+
+          VERSION="${TAG#rel-v}"
+          ASSET_NAME="partner-core-${VERSION}.jar"
+          ASSET_URL="https://github.com/slhaf/Partner/releases/download/${TAG}/${ASSET_NAME}"
+
+          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
+          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
+          echo "asset_name=${ASSET_NAME}" >> "$GITHUB_OUTPUT"
+          echo "asset_url=${ASSET_URL}" >> "$GITHUB_OUTPUT"
+
+          echo "Release tag: ${TAG}"
+          echo "Release version: ${VERSION}"
+          echo "Release asset: ${ASSET_NAME}"
+
+      - name: Checkout release source
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ steps.release.outputs.tag }}
+
+      - name: Set up Java 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: "21"
+
+      - name: Build Partner Core
+        run: |
+          mvn -B -DskipTests=true -pl Partner-Core -am package
+
+      - name: Prepare release artifact
+        shell: bash
+        run: |
+          mkdir -p dist
+
+          SOURCE_JAR="Partner-Core/target/partner-core-${{ steps.release.outputs.version }}.jar"
+
+          if [ ! -f "$SOURCE_JAR" ]; then
+            echo "Expected artifact not found: $SOURCE_JAR"
+            echo "Available Partner-Core target files:"
+            find Partner-Core/target -maxdepth 1 -type f -name "*.jar" -print
+            exit 1
+          fi
+
+          cp "$SOURCE_JAR" "dist/${{ steps.release.outputs.asset_name }}"
+          ls -lh dist
+
+      - name: Create GitHub Release
+        shell: bash
+        run: |
+          if gh release view "${{ steps.release.outputs.tag }}" >/dev/null 2>&1; then
+            echo "Release ${{ steps.release.outputs.tag }} already exists."
+            exit 1
+          fi
+
+          gh release create "${{ steps.release.outputs.tag }}" \
+            "dist/${{ steps.release.outputs.asset_name }}" \
+            --title "${{ steps.release.outputs.tag }}" \
+            --notes "Partner Core ${{ steps.release.outputs.version }}"
+        env:
+          GH_TOKEN: ${{ github.token }}
+
+      - name: Checkout master for registry update
+        uses: actions/checkout@v4
+        with:
+          ref: master
+          path: registry-worktree
+
+      - name: Update latestRelease
+        working-directory: registry-worktree
+        run: |
+          python3 - <<'PY'
+          import json
+          from pathlib import Path
+
+          version = "${{ steps.release.outputs.version }}"
+          url = "${{ steps.release.outputs.asset_url }}"
+
+          index_path = Path("registry/index.json")
+          index = json.loads(index_path.read_text(encoding="utf-8"))
+
+          index["partner"]["latestRelease"] = {
+              "url": url,
+              "version": version
+          }
+
+          index_path.write_text(
+              json.dumps(index, ensure_ascii=False, indent=2) + "\n",
+              encoding="utf-8"
+          )
+          PY
+
+      - name: Commit registry update
+        working-directory: registry-worktree
+        run: |
+          if git diff --quiet registry/index.json; then
+            echo "No latestRelease changes."
+            exit 0
+          fi
+
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          git add registry/index.json
+          git commit -m "chore(registry): update latest core release to ${{ steps.release.outputs.tag }}"
+          git push origin HEAD:master
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