diff --git a/docs/docs/about/release-notes.mdx b/docs/docs/about/release-notes.mdx
index b16d8310c1..aafad41b7a 100644
--- a/docs/docs/about/release-notes.mdx
+++ b/docs/docs/about/release-notes.mdx
@@ -4,7 +4,7 @@ sidebar_position: 3
 
 # Release notes
 
-## v8.1.0 (beta)
+## v9.0.0 (beta)
 
 ### New commands 
 
@@ -48,7 +48,7 @@ sidebar_position: 3
 - fixed bug when parsing number arguments [#6211](https://github.com/pnp/cli-microsoft365/issues/6211)
 - fixed command [teams meeting list](../cmd/teams/meeting/meeting-list.mdx) [#5968](https://github.com/pnp/cli-microsoft365/issues/5968)
 - fixed prompting for missing required options in ZOD commands [#6219](https://github.com/pnp/cli-microsoft365/issues/6219)
-- extends setup with a custom Entra app
+- extended setup with a custom Entra app
 
 ## [v8.0.0](https://github.com/pnp/cli-microsoft365/releases/tag/v8.0.0)
 
diff --git a/docs/docs/v9-upgrade-guidance.mdx b/docs/docs/v9-upgrade-guidance.mdx
new file mode 100644
index 0000000000..fed8aae99b
--- /dev/null
+++ b/docs/docs/v9-upgrade-guidance.mdx
@@ -0,0 +1,13 @@
+# v9 Upgrade Guidance
+
+The v9 of CLI for Microsoft 365 introduces breaking change in default login method. To help you upgrade to the latest version of CLI for Microsoft 365, we've listed this change along with any actions you may need to take.
+
+## CLI
+
+### Updated login command default behavior
+
+When running `m365 login` CLI will now first check if you defined the `appId` which is now required to your own single tenant Entra app registration.
+
+#### What action do I need to take?
+
+`appId` may be defined in several ways: as an option passed to the `login` command, as a `clientId` CLI setting, or as an environment variable. If you have not defined the `appId` in any of these ways, you will need to do so to continue using the CLI in your scripts.
diff --git a/docs/src/config/sidebars.ts b/docs/src/config/sidebars.ts
index e0b1e70e70..21f3abd27d 100644
--- a/docs/src/config/sidebars.ts
+++ b/docs/src/config/sidebars.ts
@@ -3,6 +3,7 @@ import type { SidebarsConfig } from '@docusaurus/plugin-content-docs';
 const sidebars: SidebarsConfig = {
   home: [
     'index',
+    'v9-upgrade-guidance',
     'v8-upgrade-guidance',
     'v7-upgrade-guidance',
     'v6-upgrade-guidance',
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 132da7c9b4..a86107a133 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,12 +1,12 @@
 {
   "name": "@pnp/cli-microsoft365",
-  "version": "8.1.0",
+  "version": "9.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@pnp/cli-microsoft365",
-      "version": "8.1.0",
+      "version": "9.0.0",
       "license": "MIT",
       "dependencies": {
         "@azure/msal-common": "^14.14.0",
diff --git a/package.json b/package.json
index 7f28a89ce6..74b1c1e176 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pnp/cli-microsoft365",
-  "version": "8.1.0",
+  "version": "9.0.0",
   "description": "Manage Microsoft 365 and SharePoint Framework projects on any platform",
   "license": "MIT",
   "main": "./dist/api.js",