diff --git a/.github/workflows/validate-changenotes.yml b/.github/workflows/validate-changenotes.yml
new file mode 100644
index 000000000..b750bf578
--- /dev/null
+++ b/.github/workflows/validate-changenotes.yml
@@ -0,0 +1,187 @@
+name: Validate Change Notes
+
+on:
+  pull_request_target:
+    types: [opened, reopened, synchronize]
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+
+jobs:
+  validate-changenotes:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+        fetch-depth: 0
+    
+    - name: Checkout base branch
+      run: |
+        git fetch origin ${{ github.base_ref }}
+    
+    - name: Get all changed files in PR
+      id: all-files
+      uses: tj-actions/changed-files@v47
+      with:
+        base_sha: ${{ github.event.pull_request.base.sha }}
+    
+    - name: Get changed note files
+      id: changed-files
+      uses: tj-actions/changed-files@v47
+      with:
+        files: |
+          editions/*/tiddlers/releasenotes/**/*.tid
+        base_sha: ${{ github.event.pull_request.base.sha }}
+    
+    - name: Check if PR needs change notes
+      id: check-needs-notes
+      run: |
+        chmod +x bin/changenote.sh
+        
+        if bin/changenote.sh check-needs ${{ steps.all-files.outputs.all_changed_files }}; then
+          echo "needs_note=true" >> $GITHUB_OUTPUT
+        else
+          echo "needs_note=false" >> $GITHUB_OUTPUT
+        fi
+        
+        echo "has_notes=${{ steps.changed-files.outputs.any_changed }}" >> $GITHUB_OUTPUT
+      shell: bash
+    
+    - name: Validate change note format
+      if: steps.changed-files.outputs.any_changed == 'true'
+      id: validate
+      continue-on-error: true
+      run: |
+        chmod +x bin/changenote.sh
+        
+        if bin/changenote.sh validate ${{ steps.changed-files.outputs.all_changed_files }}; then
+          echo "result=success" >> $GITHUB_OUTPUT
+        else
+          echo "result=failure" >> $GITHUB_OUTPUT
+          # Save error details if they exist
+          if [ -f /tmp/validation_errors.md ]; then
+            {
+              echo 'errors<<EOF'
+              cat /tmp/validation_errors.md
+              echo EOF
+            } >> $GITHUB_OUTPUT
+          fi
+          exit 1
+        fi
+      shell: bash
+    
+    - name: Parse change note summaries
+      if: steps.changed-files.outputs.any_changed == 'true' && steps.validate.outcome == 'success'
+      id: parse-notes
+      run: |
+        chmod +x bin/changenote.sh
+        
+        summaries=$(bin/changenote.sh parse ${{ steps.changed-files.outputs.all_changed_files }})
+        
+        {
+          echo 'summaries<<EOF'
+          echo "$summaries"
+          echo EOF
+        } >> $GITHUB_OUTPUT
+      shell: bash
+    
+    - name: Find existing bot comment
+      if: always()
+      uses: peter-evans/find-comment@v3
+      id: find-comment
+      with:
+        issue-number: ${{ github.event.pull_request.number }}
+        comment-author: 'github-actions[bot]'
+        body-includes: 'Change Note Status'
+    
+    - name: Create or update comment (validation passed)
+      if: steps.changed-files.outputs.any_changed == 'true' && steps.validate.outcome == 'success'
+      uses: peter-evans/create-or-update-comment@v5
+      with:
+        comment-id: ${{ steps.find-comment.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        edit-mode: replace
+        body: |
+          ## ✅ Change Note Status
+          
+          All change notes are properly formatted and validated!
+          
+          ${{ steps.parse-notes.outputs.summaries }}
+          
+          <details>
+          <summary>📖 Change Note Guidelines</summary>
+          
+          Change notes help track and communicate changes effectively. See the [full documentation](https://tiddlywiki.com/prerelease/#Release%20Notes%20and%20Changes) for details.
+          
+          </details>
+    
+    - name: Create or update comment (validation failed)
+      if: steps.changed-files.outputs.any_changed == 'true' && steps.validate.outcome == 'failure'
+      uses: peter-evans/create-or-update-comment@v5
+      with:
+        comment-id: ${{ steps.find-comment.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        edit-mode: replace
+        body: |
+          ## ❌ Change Note Status
+          
+          Change note validation failed. Please fix the following issues:
+          
+          ${{ steps.validate.outputs.errors }}
+          
+          ---
+          
+          [Release Notes and Changes](https://tiddlywiki.com/prerelease/#Release%20Notes%20and%20Changes)
+    
+    - name: Create or update comment (missing change note)
+      if: steps.check-needs-notes.outputs.needs_note == 'true' && steps.changed-files.outputs.any_changed != 'true'
+      uses: peter-evans/create-or-update-comment@v5
+      with:
+        comment-id: ${{ steps.find-comment.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        edit-mode: replace
+        body: |
+          ## ⚠️ Change Note Status
+          
+          This PR appears to contain code changes but doesn't include a change note.
+          
+          Please add a change note by creating a `.tid` file in `editions/tw5.com/tiddlers/releasenotes/<version>/` with the following format:
+          
+          [Release Notes and Changes](https://tiddlywiki.com/prerelease/#Release%20Notes%20and%20Changes)
+          
+          Note: If this is a documentation-only change or doesn't require a change note, you can ignore this message.
+    
+    - name: Create or update comment (doc only - has no notes)
+      if: steps.check-needs-notes.outputs.needs_note == 'false' && steps.changed-files.outputs.any_changed != 'true'
+      uses: peter-evans/create-or-update-comment@v5
+      with:
+        comment-id: ${{ steps.find-comment.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        edit-mode: replace
+        body: |
+          ## ✅ Change Note Status
+          
+          This PR contains documentation or configuration changes that typically don't require a change note.
+    
+    - name: Remove comment if not needed
+      if: steps.check-needs-notes.outputs.needs_note == 'false' && steps.changed-files.outputs.any_changed == 'true'
+      uses: peter-evans/create-or-update-comment@v5
+      with:
+        comment-id: ${{ steps.find-comment.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        edit-mode: replace
+        body: |
+          ## ✅ Change Note Status
+          
+          This PR contains documentation or configuration changes that typically don't require a change note.
+    
+    - name: Fail workflow if validation failed
+      if: steps.validate.outcome == 'failure'
+      run: |
+        echo "::error::Change note validation failed. Please check the PR comment for details."
+        exit 1
diff --git a/bin/changenote.sh b/bin/changenote.sh
new file mode 100644
index 000000000..51c8c3755
--- /dev/null
+++ b/bin/changenote.sh
@@ -0,0 +1,307 @@
+#!/bin/bash
+
+# TiddlyWiki Change Note Management Script
+# Usage:
+#   changenote.sh check-needs <files...>  - Check if files require change notes
+#   changenote.sh validate <files...>     - Validate change note format
+#   changenote.sh parse <files...>        - Parse and generate summary
+
+# Define valid values according to "Release Notes and Changes.tid"
+VALID_TYPES=("bugfix" "feature" "enhancement" "deprecation" "security" "pluginisation")
+VALID_CATEGORIES=("internal" "translation" "plugin" "widget" "filters" "usability" "palette" "hackability" "nodejs" "performance" "developer")
+
+# Type emoji mapping
+declare -A TYPE_EMOJI=(
+    ["bugfix"]="🐛"
+    ["feature"]="✨"
+    ["enhancement"]="⚡"
+    ["deprecation"]="⚠️"
+    ["security"]="🔒"
+    ["pluginisation"]="🔌"
+)
+
+# Category emoji mapping
+declare -A CATEGORY_EMOJI=(
+    ["internal"]="🔧"
+    ["translation"]="🌐"
+    ["plugin"]="🔌"
+    ["widget"]="📦"
+    ["filters"]="🔍"
+    ["usability"]="👥"
+    ["palette"]="🎨"
+    ["hackability"]="🛠️"
+    ["nodejs"]="💻"
+    ["performance"]="⚡"
+    ["developer"]="👨‍💻"
+)
+
+# Function: Check if files need change notes
+# Returns 0 if needs change note, 1 if not needed
+check_needs_changenote() {
+    local all_files="$@"
+    
+    if [ -z "$all_files" ]; then
+        echo "No files provided"
+        return 1
+    fi
+    
+    for file in $all_files; do
+        # Skip GitHub workflows/configs
+        [[ "$file" =~ ^\.github/ ]] && continue
+        [[ "$file" =~ ^\.vscode/ ]] && continue
+        
+        # Skip config files
+        [[ "$file" =~ ^\.editorconfig$ ]] && continue
+        [[ "$file" =~ ^\.gitignore$ ]] && continue
+        [[ "$file" =~ ^LICENSE$ ]] && continue
+        
+        # Skip markdown files (except readme.md)
+        [[ "$file" =~ \.md$ ]] && [[ ! "$file" =~ /readme\.md$ ]] && continue
+        
+        # Skip documentation in bin folder
+        [[ "$file" =~ ^bin/.*\.md$ ]] && continue
+        
+        # Skip test results and reports
+        [[ "$file" =~ ^playwright-report/ ]] && continue
+        [[ "$file" =~ ^test-results/ ]] && continue
+        
+        # Skip documentation editions
+        [[ "$file" =~ ^editions/.*-docs?/ ]] && continue
+        
+        # Check if it's a tiddler file
+        if [[ "$file" =~ ^editions/.*/tiddlers/.*\.tid$ ]]; then
+            # Core modules, plugins should require change notes
+            [[ "$file" =~ /(core|plugin\.info|modules)/ ]] && echo "✓ Code file: $file" && return 0
+            
+            # Release notes themselves don't require additional notes
+            [[ "$file" =~ /releasenotes/ ]] && continue
+            
+            # Other tiddlers are documentation
+            continue
+        fi
+        
+        # If we reach here, it's a code file that needs a change note
+        echo "✓ Code file requires change note: $file"
+        return 0
+    done
+    
+    # All files are documentation/config
+    echo "✓ Only documentation/configuration changes"
+    return 1
+}
+
+# Function: Validate change note format
+validate_changenotes() {
+    local files="$@"
+    local has_errors=false
+    local error_details=""
+    
+    if [ -z "$files" ]; then
+        echo "No change note files to validate."
+        return 0
+    fi
+    
+    for file in $files; do
+        echo "Validating: $file"
+        
+        # Check if file exists
+        if [ ! -f "$file" ]; then
+            echo "::error file=$file::File not found"
+            has_errors=true
+            continue
+        fi
+        
+        # Check if it's a changenote file
+        if [[ ! "$file" =~ editions/.*/tiddlers/releasenotes/.* ]]; then
+            continue
+        fi
+        
+        # Extract metadata from the .tid file
+        title=$(grep -m 1 "^title: " "$file" | sed 's/^title: //')
+        tags=$(grep -m 1 "^tags: " "$file" | sed 's/^tags: //')
+        change_type=$(grep -m 1 "^change-type: " "$file" | sed 's/^change-type: //')
+        change_category=$(grep -m 1 "^change-category: " "$file" | sed 's/^change-category: //')
+        description=$(grep -m 1 "^description: " "$file" | sed 's/^description: //')
+        
+        # Track errors for this file
+        file_has_errors=false
+        file_errors=""
+        
+        # Validate title format
+        if [[ ! "$title" =~ ^\$:/changenotes/[0-9]+\.[0-9]+\.[0-9]+/(#[0-9]+|[a-f0-9]{40})$ ]]; then
+            echo "::error file=$file::Invalid title format"
+            file_errors+="- Title format: Expected \`\$:/changenotes/<version>/<#issue or commit-hash>\`, found: \`$title\`\n"
+            has_errors=true
+            file_has_errors=true
+        fi
+        
+        # Validate tags
+        if [[ -z "$tags" ]]; then
+            echo "::error file=$file::Missing 'tags' field"
+            file_errors+="- Missing field: \`tags\` field is required\n"
+            has_errors=true
+            file_has_errors=true
+        elif [[ ! "$tags" =~ \$:/tags/ChangeNote ]]; then
+            echo "::error file=$file::Tags must include '\$:/tags/ChangeNote'"
+            file_errors+="- Tags: Must include \`\$:/tags/ChangeNote\`, found: \`$tags\`\n"
+            has_errors=true
+            file_has_errors=true
+        fi
+        
+        # Validate change-type
+        if [[ -z "$change_type" ]]; then
+            echo "::error file=$file::Missing 'change-type' field"
+            file_errors+="- Missing field: \`change-type\` is required. Valid values: \`${VALID_TYPES[*]}\`\n"
+            has_errors=true
+            file_has_errors=true
+        else
+            valid=false
+            for type in "${VALID_TYPES[@]}"; do
+                [[ "$change_type" == "$type" ]] && valid=true && break
+            done
+            if [[ "$valid" == "false" ]]; then
+                echo "::error file=$file::Invalid change-type '$change_type'"
+                file_errors+="- Invalid change-type: \`$change_type\` is not valid. Must be one of: \`${VALID_TYPES[*]}\`\n"
+                has_errors=true
+                file_has_errors=true
+            fi
+        fi
+        
+        # Validate change-category
+        if [[ -z "$change_category" ]]; then
+            echo "::error file=$file::Missing 'change-category' field"
+            file_errors+="- Missing field: \`change-category\` is required. Valid values: \`${VALID_CATEGORIES[*]}\`\n"
+            has_errors=true
+            file_has_errors=true
+        else
+            valid=false
+            for category in "${VALID_CATEGORIES[@]}"; do
+                [[ "$change_category" == "$category" ]] && valid=true && break
+            done
+            if [[ "$valid" == "false" ]]; then
+                echo "::error file=$file::Invalid change-category '$change_category'"
+                file_errors+="- Invalid change-category: \`$change_category\` is not valid. Must be one of: \`${VALID_CATEGORIES[*]}\`\n"
+                has_errors=true
+                file_has_errors=true
+            fi
+        fi
+        
+        # Validate description
+        if [[ -z "$description" ]]; then
+            echo "::error file=$file::Missing 'description' field"
+            file_errors+="- Missing field: \`description\` is required\n"
+            has_errors=true
+            file_has_errors=true
+        fi
+        
+        # Collect errors
+        if [[ "$file_has_errors" == "true" ]]; then
+            error_details+="### 📄 \`$file\`\n\n$file_errors\n"
+        else
+            echo "✓ $file is valid"
+        fi
+    done
+    
+    # Output error details to file for GitHub Actions
+    if [[ "$has_errors" == "true" ]]; then
+        echo -e "$error_details" > /tmp/validation_errors.md
+        echo ""
+        echo "================================"
+        echo "Change note validation failed!"
+        echo "================================"
+        echo ""
+        echo "Please ensure your change notes follow the format specified in:"
+        echo "https://tiddlywiki.com/prerelease/#Release%20Notes%20and%20Changes"
+        return 1
+    else
+        echo ""
+        echo "✓ All change notes are valid!"
+        return 0
+    fi
+}
+
+# Function: Parse change notes and generate summary
+parse_changenotes() {
+    local files="$@"
+    
+    if [ -z "$files" ]; then
+        return 0
+    fi
+    
+    for file in $files; do
+        [ ! -f "$file" ] && continue
+        
+        # Parse metadata
+        title=""
+        description=""
+        change_type=""
+        change_category=""
+        links=""
+        in_body=false
+        body_first_line=""
+        
+        while IFS= read -r line; do
+            # Empty line marks start of body
+            if [ -z "$line" ] && [ "$in_body" = false ]; then
+                in_body=true
+                continue
+            fi
+            
+            if [ "$in_body" = false ]; then
+                # Parse metadata
+                [[ "$line" =~ ^title:\ (.*)$ ]] && title="${BASH_REMATCH[1]}"
+                [[ "$line" =~ ^description:\ (.*)$ ]] && description="${BASH_REMATCH[1]}"
+                [[ "$line" =~ ^change-type:\ (.*)$ ]] && change_type="${BASH_REMATCH[1]}"
+                [[ "$line" =~ ^change-category:\ (.*)$ ]] && change_category="${BASH_REMATCH[1]}"
+                [[ "$line" =~ ^links:\ (.*)$ ]] && links="${BASH_REMATCH[1]}"
+            elif [ -z "$description" ] && [ -n "$line" ] && [ -z "$body_first_line" ]; then
+                # Use first non-empty body line if no description in metadata
+                body_first_line="$line"
+            fi
+        done < "$file"
+        
+        # Use body first line as description if needed
+        [ -z "$description" ] && [ -n "$body_first_line" ] && description="$body_first_line"
+        
+        # Get emojis
+        type_icon="${TYPE_EMOJI[$change_type]:-📝}"
+        cat_icon="${CATEGORY_EMOJI[$change_category]:-📋}"
+        
+        # Output markdown
+        echo "### ${type_icon} ${title:-$file}"
+        echo ""
+        echo "**Type:** ${change_type} | **Category:** ${change_category} ${cat_icon}"
+        echo ""
+        
+        [ -n "$description" ] && echo "> ${description}" && echo ""
+        [ -n "$links" ] && echo "🔗 [${links}](${links})" && echo ""
+        
+        echo "---"
+        echo ""
+    done
+}
+
+# Main command dispatcher
+case "${1:-}" in
+    check-needs)
+        shift
+        check_needs_changenote "$@"
+        ;;
+    validate)
+        shift
+        validate_changenotes "$@"
+        ;;
+    parse)
+        shift
+        parse_changenotes "$@"
+        ;;
+    *)
+        echo "Usage: $0 {check-needs|validate|parse} <files...>"
+        echo ""
+        echo "Commands:"
+        echo "  check-needs  Check if files require change notes"
+        echo "  validate     Validate change note format"
+        echo "  parse        Parse and generate summary"
+        exit 1
+        ;;
+esac