techdocs: Add changeset

Signed-off-by: Himanshu Mishra <[email protected]>

.changeset/techdocs-eleven-planes-teach.md

@@ -0,0 +1,15 @@
+---
+'@backstage/techdocs-common': patch
+'@backstage/plugin-techdocs-backend': patch
+---
+
+Applies only if you use TechDocs local builder instead of building on CI/CD i.e. if `techdocs.builder` in your `app-config.yaml` is set to `'local'`
+
+Improvements
+
+1. Do not check for updates in the repository if a check has been made in the last 60 seconds. This is to prevent the annoying check for update on every page switch or load.
+2. No need to maintain an in-memory etag storage, and use the one stored in `techdocs_metadata.json` file alongside generated docs.
+
+New feature
+
+1. You can now use a mix of basic and recommended setup i.e. techdocs.builder is `'local'` but using an external cloud storage instead of local storage. Previously, in this setup, the docs would never get updated.