diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 35b6abf9..b634a889 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['lts/iron', 'lts/jod', 'lts/krypton']
+        node-version: ['lts/iron', 'lts/jod', 'lts/krypton', '26.x']
     steps:
       - uses: actions/checkout@v6
       - name: Use Node.js ${{ matrix.node-version }}
diff --git a/README.md b/README.md
index 71614377..8c853c9d 100644
--- a/README.md
+++ b/README.md
@@ -29,13 +29,14 @@ npm install @globus/sdk
 
 ### Node.js
 
-We aim to support all Active LTS [Node.js releases](https://nodejs.org/en/about/previous-releases). We intend to support all Maintenance LTS versions until their official end-of-life. Removal of support for a Node.js version will be considered a breaking change and result in a major version bump of the SDK.
+We aim to support all Active LTS [Node.js releases](https://nodejs.org/en/about/previous-releases). We intend to support all Maintenance LTS versions until their official end-of-life (EOL). Removal of support for a Node.js version will be considered a breaking change and result in a major version bump of the SDK.
 
-| Version    |                                                                                                                                                                                                                |
-| ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| Node.js 20 | [![lts/iron](https://img.shields.io/github/actions/workflow/status/globus/globus-sdk-javascript/ci.yml?style=flat-square&label=)](https://github.com/globus/globus-sdk-javascript/actions/workflows/ci.yml)    |
+| Version    |                                                                                                                                                                                                                | Notes                                                           |
+| ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------- |
+| Node.js 20 | [![lts/iron](https://img.shields.io/github/actions/workflow/status/globus/globus-sdk-javascript/ci.yml?style=flat-square&label=)](https://github.com/globus/globus-sdk-javascript/actions/workflows/ci.yml)    | ⚠️ **Near EOL**; Support will be removed in next major version. |
 | Node.js 22 | [![lts/jod](https://img.shields.io/github/actions/workflow/status/globus/globus-sdk-javascript/ci.yml?style=flat-square&label=)](https://github.com/globus/globus-sdk-javascript/actions/workflows/ci.yml)     |
 | Node.js 24 | [![lts/krypton](https://img.shields.io/github/actions/workflow/status/globus/globus-sdk-javascript/ci.yml?style=flat-square&label=)](https://github.com/globus/globus-sdk-javascript/actions/workflows/ci.yml) |
+| Node.js 26 | [![26](https://img.shields.io/github/actions/workflow/status/globus/globus-sdk-javascript/ci.yml?style=flat-square&label=)](https://github.com/globus/globus-sdk-javascript/actions/workflows/ci.yml)          |
 
 ### Browser Support