diff --git a/.forgejo/workflows/ci.yaml b/.forgejo/workflows/ci.yaml
index 811ad63..b2392b2 100644
--- a/.forgejo/workflows/ci.yaml
+++ b/.forgejo/workflows/ci.yaml
@@ -16,6 +16,21 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Validate PR Title
+        if: github.event_name == 'pull_request'
+        run: |
+          PR_TITLE="${{ github.event.pull_request.title }}"
+          echo "PR Title: $PR_TITLE"
+          
+          # Check if PR title starts with valid prefix
+          if [[ "$PR_TITLE" =~ ^(Release|Feature|Hotfix|Bugfix)/ ]]; then
+            echo "✅ PR title is valid: $PR_TITLE"
+          else
+            echo "❌ PR title must start with one of: Release/, Feature/, Hotfix/, or Bugfix/"
+            echo "Current title: $PR_TITLE"
+            exit 1
+          fi
+
       - name: Build Docker Image
         run: |
           docker build --build-arg VERSION=test --build-arg BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ") -t threejs-test:test .
@@ -69,19 +84,75 @@ jobs:
           MINOR=${MINOR:-0}
           PATCH=${PATCH:-0}
           
-          # Increment patch version for each merge to main, or start at 0.1.0 if no tags exist
+          # Get PR title from event or merge commit message
+          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+            PR_TITLE="${{ github.event.pull_request.title }}"
+            echo "PR Title: $PR_TITLE"
+          else
+            # For push events, check merge commit message
+            # Merge commits often have format: "Merge pull request #X from branch" or "PR Title (#X)"
+            COMMIT_MSG=$(git log -1 --pretty=format:"%s" HEAD)
+            echo "Commit message: $COMMIT_MSG"
+            
+            # Try to extract PR title from merge commit
+            # Look for patterns like "Release/...", "Feature/...", etc. in the commit message
+            if echo "$COMMIT_MSG" | grep -qE "^(Release|Feature|Hotfix|Bugfix)/"; then
+              # If commit message itself starts with prefix, use it
+              PR_TITLE=$(echo "$COMMIT_MSG" | grep -oE "^(Release|Feature|Hotfix|Bugfix)/[^[:space:]]*" | head -1)
+            elif echo "$COMMIT_MSG" | grep -qE "(Release|Feature|Hotfix|Bugfix)/"; then
+              # Extract prefix pattern from anywhere in the message
+              PR_TITLE=$(echo "$COMMIT_MSG" | grep -oE "(Release|Feature|Hotfix|Bugfix)/[^[:space:]]*" | head -1)
+            else
+              # Check if it's a merge commit and try to get the original PR title
+              # For Forgejo, merge commits might reference the PR
+              PR_TITLE="$COMMIT_MSG"
+              echo "⚠️ Could not extract PR title prefix from commit message, using full message"
+            fi
+            echo "Extracted PR title: $PR_TITLE"
+          fi
+          
+          # Determine version type from PR title prefix
+          if [[ "$PR_TITLE" =~ ^Release/ ]]; then
+            VERSION_TYPE="release"
+            echo "Detected: RELEASE - incrementing major version"
+          elif [[ "$PR_TITLE" =~ ^Feature/ ]]; then
+            VERSION_TYPE="feature"
+            echo "Detected: FEATURE - incrementing minor version"
+          elif [[ "$PR_TITLE" =~ ^(Hotfix|Bugfix)/ ]]; then
+            VERSION_TYPE="patch"
+            echo "Detected: HOTFIX/BUGFIX - incrementing patch version"
+          else
+            echo "⚠️ Warning: PR title does not match expected pattern (Release/, Feature/, Hotfix/, or Bugfix/)"
+            echo "Defaulting to FEATURE (minor version increment)"
+            VERSION_TYPE="feature"
+          fi
+          
+          # Increment version based on type
           if [[ "$LATEST_TAG" == "v0.0.0" ]]; then
             # First version
             NEW_VERSION="0.1.0"
+          elif [[ "$VERSION_TYPE" == "release" ]]; then
+            # Release: increment major version and reset minor/patch (0.1.5 -> 1.0.0)
+            MAJOR=$((MAJOR + 1))
+            MINOR=0
+            PATCH=0
+            NEW_VERSION="$MAJOR.$MINOR.$PATCH"
+          elif [[ "$VERSION_TYPE" == "feature" ]]; then
+            # Feature: increment minor version and reset patch (0.1.5 -> 0.2.0)
+            MINOR=$((MINOR + 1))
+            PATCH=0
+            NEW_VERSION="$MAJOR.$MINOR.$PATCH"
           else
-            # Increment patch version for each merge to main
+            # Hotfix/Bugfix: increment patch version (0.1.5 -> 0.1.6)
             PATCH=$((PATCH + 1))
             NEW_VERSION="$MAJOR.$MINOR.$PATCH"
           fi
           
           echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT
           echo "tag=v$NEW_VERSION" >> $GITHUB_OUTPUT
+          echo "version_type=$VERSION_TYPE" >> $GITHUB_OUTPUT
           echo "Latest tag: $LATEST_TAG"
+          echo "Version type: $VERSION_TYPE"
           echo "New version: $NEW_VERSION"
           echo "Current VERSION file: $(cat VERSION 2>/dev/null || echo 'not found')"