Release notes for v25r1

ReleaseNotes/v25r1.md

+2022-05-20 Rec v25r1
+===
+
+This version uses Lbcom v24r1, LHCb v46r1 Gaudi v36r2 and LCG101 with ROOT 6.24.06 .
+
+This version is released on `run2-patches` branch and is intended for use with Run1 or Run2 data. For Run3, use a version released on `master` branch
+Built relative to Rec [v25r0](../-/tags/v25r0), with the following changes:
+
+
+### Code cleanups and changes to tests ~modernisation ~cleanup ~testing
+
+- ~Tracking | Remove STSpilloverTool, !2828 (@cattanem)
+- Move away from using CERN-SWTEST, !2686 (@rmatev)
+
+