diff --git a/.github/workflows/linux-build-and-test-compatibility.yml b/.github/workflows/linux-build-and-test-compatibility.yml
index bf45edad..5d3f8caa 100644
--- a/.github/workflows/linux-build-and-test-compatibility.yml
+++ b/.github/workflows/linux-build-and-test-compatibility.yml
@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  build-humble-and-rolling: # iron, humble and rolling distros
+  build-humble-and-rolling: # jazzy, humble and rolling distros
     runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
@@ -12,7 +12,6 @@ jobs:
         node-version: [20.X, 22.X]
         ros_distribution:
           - jazzy
-          - iron
           - humble
           - rolling
 
diff --git a/.github/workflows/linux-build-and-test.yml b/.github/workflows/linux-build-and-test.yml
index f8b4e534..1cb32a80 100644
--- a/.github/workflows/linux-build-and-test.yml
+++ b/.github/workflows/linux-build-and-test.yml
@@ -6,13 +6,11 @@ on:
     branches:
       - develop
       - jazzy
-      - iron-irwini
       - humble-hawksbill
   pull_request:
     branches:
       - develop
       - jazzy
-      - iron-irwini
       - humble-hawksbill
   workflow_dispatch:
 
diff --git a/.github/workflows/windows-build-and-test-compatibility.yml b/.github/workflows/windows-build-and-test-compatibility.yml
index b4081d82..d667a080 100644
--- a/.github/workflows/windows-build-and-test-compatibility.yml
+++ b/.github/workflows/windows-build-and-test-compatibility.yml
@@ -13,7 +13,6 @@ jobs:
         node-version: [22.X]
         ros_distribution:
           - jazzy
-          - iron
           - humble
           - rolling
     steps:
diff --git a/.github/workflows/windows-build-and-test.yml b/.github/workflows/windows-build-and-test.yml
index ea7fa5d7..a8fa443f 100644
--- a/.github/workflows/windows-build-and-test.yml
+++ b/.github/workflows/windows-build-and-test.yml
@@ -6,13 +6,11 @@ on:
     branches:
       - develop
       - jazzy
-      - iron-irwini
       - humble-hawksbill
   pull_request:
     branches:
       - develop
       - jazzy
-      - iron-irwini
       - humble-hawksbill
   workflow_dispatch:
 
diff --git a/README.md b/README.md
index 964aa7cc..78cec1e5 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,6 @@
 | :--------------: | :------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------: |
 |      Jazzy       |     ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=jazzy)        |     ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=jazzy)      |
 |      Humble      | ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=humble-hawksbill) | ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=humble-hawksbill) |
-|       Iron       |   ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=iron-irwini)    |   ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=iron-irwini)    |
 
 \* rclnodejs development and maintenance is limited to the ROS 2 LTS releases and the Rolling development branch
 
diff --git a/scripts/npmjs-readme.md b/scripts/npmjs-readme.md
index 59557f3d..8e564b66 100644
--- a/scripts/npmjs-readme.md
+++ b/scripts/npmjs-readme.md
@@ -1,4 +1,4 @@
-# rclnodejs ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=iron-irwini)
+# rclnodejs ![GitHub Workflow Status](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=jazzy)
 
 `rclnodejs` is a Node.js client for the Robot Operating System (ROS 2). It provides a simple and easy JavaScript API for ROS 2 programming. TypeScript declarations are included to support use of rclnodejs in TypeScript projects.
 
@@ -45,7 +45,7 @@ npm i rclnodejs@x.y.z
 
 |                                      RCLNODEJS Version                                       |                                                               Compatible ROS 2 LTS                                                                |
 | :------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------------------------------------------------------: |
-| latest version (currently [v0.22.3](https://github.com/RobotWebTools/rclnodejs/tree/0.22.3)) | [Humble](https://github.com/RobotWebTools/rclnodejs/tree/humble-hawksbill)<br>[Iron](https://github.com/RobotWebTools/rclnodejs/tree/iron-irwini) |
+| latest version (currently [v0.27.4](https://github.com/RobotWebTools/rclnodejs/tree/0.27.4)) | [Humble](https://github.com/RobotWebTools/rclnodejs/tree/humble-hawksbill)<br>[Jazzy](https://github.com/RobotWebTools/rclnodejs/tree/jazzy) |
 
 ## Documentation