ELT-Platform.md

@@ -30,8 +30,18 @@ Update Policy
 
 Each platform stream has different update policy since they targets different use cases.
 
-* ELT Platform Next
+* **ELT Platform Next** 
   * No restrictions on braking changes
+  * Ideally teams coordinate updates to avoid packages breaks
+* **Yearly Branches**
+  * Projects may introduce breaking changes only till the release date scheduled in XXX.
+  * Breaking changes that are unanimously agreed between all affected projects are allowed.
+  * Updates containing bug-fixes and new features are allowed and can be merged any time.
+  * All updates has to pass staging pipelines before provided to users.
+    * Each broken test has to be examined individually. I.e. flaky test or improper API usage doesn't block the update.
+* **Release Branches**
+  * Any update has to be unanimously agreed by owners of the release branch
+  * All updates has to pass staging pipelines before provided to users.
 
 ## Versioning