diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 8914d874..e1d2e001 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -4,6 +4,7 @@ on:
     branches:
       - master
       - newbuild
+      - parts
     paths:
       - RELEASE_NOTES.md
       - .github/workflows/publish.yml
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 439c1f56..767ac9f2 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,6 @@
+### 5.3.0-prerelease001
+- structured point clouds implementation (prerelease, for testing only)
+
 ### 5.2.27
 - [LodTreeInstance] intersect view frustum depth range to -1 +1