diff --git a/RecSys/cmt/requirements b/RecSys/cmt/requirements
index 1791ffca82aa4077762cd0d4bf81034e76191ddf..9a3c9893f990b43a700d1474732b41f4b8127ad4 100755
--- a/RecSys/cmt/requirements
+++ b/RecSys/cmt/requirements
@@ -1,5 +1,5 @@
 package RecSys
-version           v11r5p1g2
+version           v11r5p2g2
 
 branches cmt doc tests
 
diff --git a/ReleaseNotes/v11r5p2g2.md b/ReleaseNotes/v11r5p2g2.md
new file mode 100644
index 0000000000000000000000000000000000000000..fcc1244ed816618bd045ecae8ff42fca7d701c6f
--- /dev/null
+++ b/ReleaseNotes/v11r5p2g2.md
@@ -0,0 +1,14 @@
+2025-02-04 Rec v11r5p2g2
+===
+
+This version uses
+LHCb [v32r4p1g2](../../../../LHCb/-/tags/v32r4p1g2),
+Gaudi [v22r5](../../../../Gaudi/-/tags/v22r5) and
+LCG [61b](http://lcginfo.cern.ch/release/61b/) with ROOT 5.30.04.
+
+This version is released on `hlt2011-patches` branch. This branch is intended *only* for technical fixes to support emulation of the 2011 HLT in simulation workflows. Builds with gcc43 on slc5.
+Built relative to Rec [v11r5p1g2](../-/tags/v11r5p1g2), with the following changes:
+
+### Fixes ~"bug fix" ~workaround
+
+- Use LHCb ParticlePropertySvc instead of Gaudi one, !4253 (@cattanem) :star: