Add release build docu

README.md

@@ -40,3 +40,22 @@ npm run package
 Packaged applications will automatically update if there is a newer version available (compared to build version in package.json), this does
 also apply to development versions (ending on -devXX), which are updated via a separate stream. Updates are distributed once the build
 version is changed and a tag has been added.
+
+## How to build a Release
+
+- Make sure all PRs for the release are merged to the `master` branch
+- For minor releases create a new branch on the repo from master (e.g. `v.3.4`)
+- In the new release branch on your local machine:
+    - Cherry Pick all commits from the `master` branch you want included in the release
+    - Update the version (several places) in `package.json` and `package-lock.json`
+    - Create a Release Candidate for testing:
+        - Add a new tag with the version number (e.g. `v3.4.4-rc.1`)
+        - Push the commits and tag to the repo
+        - The CI will build the release candidate (because of the tag) and add it to the GitHub releases
+        - Test the release candidate
+    - If the release candidate is good
+        - Update the version (several places) in `package.json` and `package-lock.json`
+        - Create a new tag with the version number (e.g. `v3.4.4`)
+        - Push the commits and tag to the repo
+        - The CI will build the release and add it to the GitHub releases
+- Bump the version in the `master` branch to the next version (e.g. `3.4.5-dev.1`)