diff --git a/.github/workflows/check_ap2_systemd_full_build_folder.yml b/.github/workflows/check_ap2_systemd_full_build_folder.yml
index bdab8195..8d8a9721 100644
--- a/.github/workflows/check_ap2_systemd_full_build_folder.yml
+++ b/.github/workflows/check_ap2_systemd_full_build_folder.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v3.5.2
diff --git a/RELEASENOTES-DEVELOPMENT.md b/RELEASENOTES-DEVELOPMENT.md
index 7422509d..12f72493 100644
--- a/RELEASENOTES-DEVELOPMENT.md
+++ b/RELEASENOTES-DEVELOPMENT.md
@@ -1,3 +1,8 @@
+Version 4.3.1-dev-3-g2fb81ca9
+===
+**Exploration**
+* Add some slightly noisy diagnostics to try to locate a fault.
+
 Version 4.3.1d-2-ge6a2a429
 ===
 **Bug Fix**