diff --git a/CMakeLists.txt b/CMakeLists.txt
index a3be1ab49f8d4f9782932cf8340167170bcc6240..52a15fd649538bffc1a83c4470e499957dbe9545 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@
 cmake_minimum_required(VERSION 3.15)
 option(CMAKE_EXPORT_COMPILE_COMMANDS "Enable/Disable output of compile_commands.json" ON)
 
-project(Lbcom VERSION 38.5
+project(Lbcom VERSION 38.5.1
         LANGUAGES CXX)
 
 # Enable testing with CTest/CDash
diff --git a/ReleaseNotes/v38r5p1.md b/ReleaseNotes/v38r5p1.md
new file mode 100644
index 0000000000000000000000000000000000000000..7057389e52ea65d62e8d695f81a22dcdf6985793
--- /dev/null
+++ b/ReleaseNotes/v38r5p1.md
@@ -0,0 +1,32 @@
+2025-12-02 Lbcom v38r5p1
+===
+
+This version uses
+LHCb [v58r5p1](../../../../LHCb/-/tags/v58r5p1),
+Gaudi [v40r1](../../../../Gaudi/-/tags/v40r1),
+Detector [v3r7](../../../../Detector/-/tags/v3r7) and
+LCG [106c](http://lcginfo.cern.ch/release/106c/) with ROOT 6.32.10.
+
+This version is released on the `master` branch.
+Built relative to Lbcom [v38r5](/../../tags/v38r5), with the following changes:
+
+### New features ~"new feature"
+
+- Adapt to removal of RichSmartID HPD support, !866 (@jonrob)
+
+### Fixes ~"bug fix" ~workaround
+
+
+
+### Enhancements ~enhancement
+
+
+
+### Code cleanups and changes to tests ~modernisation ~cleanup ~testing
+
+
+
+### Documentation ~Documentation
+
+
+### Other