fix: sync package.runtime.json version in Docker builds (v2.33.1) (#534)

Docker images were built with stale package.runtime.json (v2.29.5)
while npm package was at v2.33.0. This was caused by the build-docker
job not syncing the version before building, while publish-npm did.

Changes:
- Add "Sync runtime version" step to release.yml build-docker job
- Add "Sync runtime version" step to docker-build.yml build job
- Add "Sync runtime version" step to docker-build.yml build-railway job
- Bump version to 2.33.1 to trigger release with fix

The sync uses a lightweight Node.js one-liner (no npm install needed)
to update package.runtime.json version from package.json before
Docker builds.

Conceived by Romuald Czlonkowski - www.aiadvisors.pl/en

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/docker-build.yml

@@ -60,6 +60,17 @@ jobs:
         with:
           lfs: true
 
+      - name: Sync runtime version
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          node -e "
+            const fs = require('fs');
+            const pkg = JSON.parse(fs.readFileSync('package.runtime.json'));
+            pkg.version = '$VERSION';
+            fs.writeFileSync('package.runtime.json', JSON.stringify(pkg, null, 2) + '\n');
+          "
+          echo "✅ Synced package.runtime.json to version $VERSION"
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         
@@ -151,6 +162,17 @@ jobs:
         with:
           lfs: true
 
+      - name: Sync runtime version
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          node -e "
+            const fs = require('fs');
+            const pkg = JSON.parse(fs.readFileSync('package.runtime.json'));
+            pkg.version = '$VERSION';
+            fs.writeFileSync('package.runtime.json', JSON.stringify(pkg, null, 2) + '\n');
+          "
+          echo "✅ Synced package.runtime.json to version $VERSION"
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         

.github/workflows/release.yml

@@ -428,6 +428,17 @@ jobs:
           fi
           echo "✅ Sufficient disk space: ${AVAILABLE_GB}GB available"
 
+      - name: Sync runtime version for Docker
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          node -e "
+            const fs = require('fs');
+            const pkg = JSON.parse(fs.readFileSync('package.runtime.json'));
+            pkg.version = '$VERSION';
+            fs.writeFileSync('package.runtime.json', JSON.stringify(pkg, null, 2) + '\n');
+          "
+          echo "✅ Synced package.runtime.json to version $VERSION"
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       

docs/CHANGELOG.md

@@ -55,6 +55,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Based on hands-on testing with n8n-mcp-tester agent
 - Overall experience rating improved from 4.5/10 to estimated 6/10
 
+## [2.33.1] - 2026-01-12
+
+### Fixed
+- **Docker image version mismatch bug**: Docker images were built with stale `package.runtime.json` (v2.29.5) while npm package was at v2.33.0
+  - Root cause: `build-docker` job in `release.yml` did not sync `package.runtime.json` version before building
+  - The `publish-npm` job synced the version, but both jobs ran in parallel, so Docker got the stale version
+  - Added "Sync runtime version" step to `release.yml` `build-docker` job
+  - Added "Sync runtime version" step to `docker-build.yml` `build` and `build-railway` jobs
+  - All Docker builds now sync `package.runtime.json` version from `package.json` before building
+
 ## [2.14.4] - 2025-09-30
 
 ### Added

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp",
-  "version": "2.33.0",
+  "version": "2.33.1",
   "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

package.runtime.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp-runtime",
-  "version": "2.29.5",
+  "version": "2.33.1",
   "description": "n8n MCP Server Runtime Dependencies Only",
   "private": true,
   "dependencies": {