diff --git a/.cursor-plugin/plugin.json b/.cursor-plugin/plugin.json
index 731fcd3..a854fef 100644
--- a/.cursor-plugin/plugin.json
+++ b/.cursor-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "docker-developer-tools",
   "displayName": "Docker Developer Tools",
-  "version": "1.3.3",
+  "version": "1.3.4",
   "description": "Docker and container workflows for Cursor, Claude Code, and MCP-compatible editors - 17 skills, 10 rules, and 150 MCP tools for building, debugging, optimizing, and managing Docker containers, images, networks, and volumes. Includes a companion MCP server (docker-mcp) for live Docker CLI integration.",
   "author": {
     "name": "TMHSDigital",
diff --git a/.github/workflows/label-sync.yml b/.github/workflows/label-sync.yml
index 410a720..db80206 100644
--- a/.github/workflows/label-sync.yml
+++ b/.github/workflows/label-sync.yml
@@ -30,29 +30,33 @@ jobs:
           LABELS=""
 
           if echo "$FILES" | grep -q "^skills/"; then
-            LABELS="$LABELS,skills"
+            LABELS="$LABELS skills"
           fi
 
           if echo "$FILES" | grep -q "^rules/"; then
-            LABELS="$LABELS,rules"
+            LABELS="$LABELS rules"
           fi
 
           if echo "$FILES" | grep -q "^mcp-server/"; then
-            LABELS="$LABELS,mcp-server"
+            LABELS="$LABELS mcp-server"
           fi
 
           if echo "$FILES" | grep -q "^docs/"; then
-            LABELS="$LABELS,documentation"
+            LABELS="$LABELS documentation"
           fi
 
           if echo "$FILES" | grep -q "^\.github/"; then
-            LABELS="$LABELS,ci"
+            LABELS="$LABELS ci"
           fi
 
-          LABELS="${LABELS#,}"
-
           if [ -n "$LABELS" ]; then
-            gh pr edit ${{ github.event.pull_request.number }} --add-label "$LABELS"
+            for label in $LABELS; do
+              gh label create "$label" --force --color "ededed" 2>/dev/null || true
+              gh pr edit ${{ github.event.pull_request.number }} --add-label "$label"
+            done
+            echo "Applied labels:$LABELS"
+          else
+            echo "No labels to apply"
           fi
         env:
           FILES: ${{ steps.changed.outputs.files }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 25dfacc..1cb2d9c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -110,7 +110,7 @@ jobs:
 
       - name: Sync release docs
         if: steps.check.outputs.skip == 'false'
-        uses: TMHSDigital/Developer-Tools-Directory/.github/actions/release-doc-sync@v1.0
+        uses: TMHSDigital/Developer-Tools-Directory/.github/actions/release-doc-sync@v1
         with:
           plugin-version: ${{ steps.new.outputs.version }}
           previous-version: ${{ steps.current.outputs.version }}
diff --git a/.gitignore b/.gitignore
index 1b6c501..277dde9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,3 +31,6 @@ Desktop.ini
 
 # Claude
 .claude/
+
+# DTD#27: release-doc-sync v1 migration verification
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d2c973..2649627 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.4] - 2026-04-25
+
+See [release notes](https://github.com/TMHSDigital/Docker-Developer-Tools/releases/tag/v1.3.4) for details.
+
 ## [1.3.3] - 2026-04-25
 
 See [release notes](https://github.com/TMHSDigital/Docker-Developer-Tools/releases/tag/v1.3.3) for details.
@@ -21,6 +25,17 @@ See [release notes](https://github.com/TMHSDigital/Docker-Developer-Tools/releas
 
 See [release notes](https://github.com/TMHSDigital/Docker-Developer-Tools/releases/tag/v1.3.0) for details.
 
+## [Versions 1.0.1 through 1.2.x] - prior to 2026-04-25
+
+Multiple patch and minor releases shipped between v1.0.0 and v1.3.0
+without CHANGELOG entries due to release-doc-sync automation
+not yet existing. See [GitHub releases](https://github.com/TMHSDigital/Docker-Developer-Tools/releases)
+for the complete release history.
+
+Going forward, release-doc-sync@v1.0 from
+[TMHSDigital/Developer-Tools-Directory](https://github.com/TMHSDigital/Developer-Tools-Directory)
+automatically maintains this file on each auto-release.
+
 ## [1.0.0] - 2026-03-29
 
 ### Changed
diff --git a/CLAUDE.md b/CLAUDE.md
index fc60824..9c4c7f3 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -12,7 +12,7 @@ Docker Developer Tools integrates Docker and container workflows into AI-assiste
 
 This is a monorepo - the skills, rules, and companion MCP server live in the same repository. Docker's API is local (Docker Engine socket / CLI), so one repo is simpler for users to install and maintain.
 
-**Version:** 1.3.3
+**Version:** 1.3.4
 **License:** CC-BY-NC-ND-4.0
 **Author:** TMHSDigital
 
diff --git a/README.md b/README.md
index 61a6c57..80c6be9 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 </p>
 
 <p align="center">
-  <a href="https://github.com/TMHSDigital/Docker-Developer-Tools/releases/latest"><img src="https://img.shields.io/badge/version-1.3.3-0db7ed?style=flat-square" alt="Version" /></a>
+  <a href="https://github.com/TMHSDigital/Docker-Developer-Tools/releases/latest"><img src="https://img.shields.io/badge/version-1.3.4-0db7ed?style=flat-square" alt="Version" /></a>
   <a href="https://github.com/TMHSDigital/Docker-Developer-Tools/releases/latest"><img src="https://img.shields.io/github/v/release/TMHSDigital/Docker-Developer-Tools?style=flat-square&color=0db7ed&label=release" alt="Release" /></a>
   <a href="https://www.npmjs.com/package/@tmhs/docker-mcp"><img src="https://img.shields.io/npm/v/@tmhs/docker-mcp?style=flat-square&color=066da5&label=npm" alt="npm" /></a>
   <a href="LICENSE"><img src="https://img.shields.io/badge/license-CC--BY--NC--ND--4.0-384d54?style=flat-square" alt="License" /></a>