docs: mention next install channel (#1887)

README.md

@@ -40,7 +40,7 @@ Traditional AI tools do the thinking for you, producing average results. BMad ag
 npx bmad-method install
 ```
 
-> If you are getting a stale beta version, use: `npx bmad-method@6.0.1 install`
+> Want the newest prerelease build? Use `npx bmad-method@next install`. Expect higher churn than the default install.
 
 Follow the installer prompts, then open your AI IDE (Claude Code, Cursor, etc.) in your project folder.
 

docs/how-to/install-bmad.md

@@ -29,6 +29,15 @@ If you want to use a non interactive installer and provide all install options o
 npx bmad-method install
 ```
 
+:::tip[Want the newest prerelease build?]
+Use the `next` dist-tag:
+```bash
+npx bmad-method@next install
+```
+
+This gets you newer changes earlier, with a higher chance of churn than the default install.
+:::
+
 :::tip[Bleeding edge]
 To install the latest from the main branch (may be unstable):
 ```bash

docs/tutorials/getting-started.md

@@ -95,6 +95,8 @@ Open a terminal in your project directory and run:
 npx bmad-method install
 ```
 
+If you want the newest prerelease build instead of the default release channel, use `npx bmad-method@next install`.
+
 When prompted to select modules, choose **BMad Method**.
 
 The installer creates two folders: