Merge branch 'release-v55r16p1' into 'v55r16-patches'

Prepare LHCb v55r16p1

See merge request !4830

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(LHCb VERSION 55.16
+project(LHCb VERSION 55.16.1
         LANGUAGES CXX)
 
 # Enable testing with CTest/CDash

ReleaseNotes/v55r16p1.md

+2024-12-16 LHCb v55r16p1
+===
+
+This version uses
+Gaudi [v38r1p1](../../../../Gaudi/-/tags/v38r1p1),
+Detector [v1r36](../../../../Detector/-/tags/v1r36) and
+LCG [105a](http://lcginfo.cern.ch/release/105a/) with ROOT 6.30.04.
+
+This version is released on the `v55r16-patches` branch.
+Built relative to LHCb [v55r16](/../../tags/v55r16), with the following changes:
+
+### New features ~"new feature"
+
+
+
+### Fixes ~"bug fix" ~workaround
+
+
+
+### Enhancements ~enhancement
+
+
+
+### Code cleanups and changes to tests ~modernisation ~cleanup ~testing
+
+
+
+### Documentation ~Documentation
+
+
+### Other
+
+- Merge branch 'reduce-mem-overhead' into 'v55r16-patches', !4828 (@msaur)