feat: reorganizing the NetlifyCMS Docs navigation (#3766)

website/content/docs/releases.md

@@ -0,0 +1,29 @@
+---
+title: Releases
+weight: 60
+group: intro
+---
+
+
+
+## Update the CMS Version
+
+The update procedure for your CMS depends upon the method you used to install Netlify CMS.
+
+### Package Manager
+
+If you are using a package manager like Yarn or NPM, use their standard procedure to update. This is how both the Hugo and Gatsby starters are set up.
+
+### CDN
+
+If you are using the CMS through a CDN like Unpkg, then that depends on the version tag you are using. You can find the version tag in the `/admin/index.html` file of your site.
+
+- (Recommended) If you use `^2.0.0`, the CMS does all updates except major versions automatically.
+  - It upgrades to `2.0.1`, `2.1.0`, `2.1.2`.
+  - It does not upgrade to `3.0.0` or higher.
+  - It does not upgrade to beta versions.
+
+- If you use `~2.0.0`, the CMS will do only patch updates automatically.
+  - It upgrades `2.0.1`, `2.0.2`.
+  - It does not upgrade to `2.1.0` or higher.
+  - It does not upgrade beta versions.