diff --git a/ganga/GangaRelease/ReleaseNotes-8.5.4 b/ganga/GangaRelease/ReleaseNotes-8.5.4
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+**************************************************************************************************************
+8.5.4 (2021/11/09)
+
+
+--------------------------------------------------------------------------------------------------------------
+ganga/ganga/GangaCore
+--------------------------------------------------------------------------------------------------------------
+* Removal of use of popen2 #1983 
+* Removal of Root application #1988 
+
+--------------------------------------------------------------------------------------------------------------
+ganga/ganga/GangaDirac
+--------------------------------------------------------------------------------------------------------------
+* Added `getSize()` function to DiracFile #1978  
+
+--------------------------------------------------------------------------------------------------------------
+ganga/ganga/GangaLHCb
+--------------------------------------------------------------------------------------------------------------
+* Added nMakeCores to initial GaudiExec build #1990 
+* Some fixes for python 3.8 #1991 #1992 
+* Bugifx for GaudiExec Dirac wrapper script and UTF-8 #1994
+
+--------------------------------------------------------------------------------------------------------------
+ganga/ganga/GangaND280
+--------------------------------------------------------------------------------------------------------------
+* Updates to bring into line with production code #1981  
+
+**************************************************************************************************************