diff --git a/tools/fnlosrc_install.csh b/tools/fnlosrc_install.csh
index 59bc193bfc9140c5728b0a64a512d0ab4740db54..f16c74020cb0f47cb26a1f669530d80dd6a067f5 100755
--- a/tools/fnlosrc_install.csh
+++ b/tools/fnlosrc_install.csh
@@ -238,7 +238,10 @@ if ( $#argv > 5 && $6 != "_" ) then
 # Used for fnl2332d:       set revision=4585
 # Bug in Z+jet RV channel: set revision=4708
 # Bug in DIS & pp jets VV: set revision=5088
-   set revision=5918
+# NNLOJET modules1 production version
+#   set revision=rev5918
+# NNLOJET modules2 production version
+   set revision=modules2_rev6591
 endif
 echo "NNLOJET usage: $tab$tab $withnnlojet"
 # With interface to Sherpa via MCGrid?
@@ -429,14 +432,20 @@ if ( $withcvmfslhapdf != "0" ) then
    echo 'setenv PATH '"${lhapdfbinpath}:"'${PATH}' >> fnlosrc_source.csh
    echo 'export PATH='"${lhapdfbinpath}:"'${PATH}' >> fnlosrc_source.sh
 endif
-# Just in case: NNLOJET executables
+# Just in case: NNLOJET executables and configuration files
 if ( $withnnlojet ) then
-   setenv NNLOJET_BIN_PATH ${base}/src/NNLOJET_rev${revision}/driver
+   setenv NNLOJET_BIN_PATH ${base}/src/NNLOJET_${revision}/driver
    setenv PATH ${NNLOJET_BIN_PATH}:${NNLOJET_BIN_PATH}/bin:${PATH}
    echo 'setenv NNLOJET_BIN_PATH '"${NNLOJET_BIN_PATH}" >> fnlosrc_source.csh
    echo 'export NNLOJET_BIN_PATH='"${NNLOJET_BIN_PATH}" >> fnlosrc_source.sh
    echo 'setenv PATH ${NNLOJET_BIN_PATH}:${NNLOJET_BIN_PATH}/bin:${PATH}' >> fnlosrc_source.csh
    echo 'export PATH=${NNLOJET_BIN_PATH}:${NNLOJET_BIN_PATH}/bin:${PATH}' >> fnlosrc_source.sh
+   setenv NNLOJET_CONFIG_PATH ${base}/src/NNLOJET_${revision}/driver/process
+   setenv PATH ${NNLOJET_CONFIG_PATH}:${NNLOJET_CONFIG_PATH}/bin:${PATH}
+   echo 'setenv NNLOJET_CONFIG_PATH '"${NNLOJET_CONFIG_PATH}" >> fnlosrc_source.csh
+   echo 'export NNLOJET_CONFIG_PATH='"${NNLOJET_CONFIG_PATH}" >> fnlosrc_source.sh
+   echo 'setenv PATH ${NNLOJET_CONFIG_PATH}:${NNLOJET_CONFIG_PATH}/bin:${PATH}' >> fnlosrc_source.csh
+   echo 'export PATH=${NNLOJET_CONFIG_PATH}:${NNLOJET_CONFIG_PATH}/bin:${PATH}' >> fnlosrc_source.sh
 endif
 echo ""
 echo "ATTENTION: PATH environment complemented!"
@@ -458,8 +467,8 @@ else
       setenv MYCPPFLAGS "${CPPFLAGS}"
    endif
 endif
-if ( $MYCPPFLAGS != "" ) then
-   echo "MYCPPFLAGS is $MYCPPFLAGS"
+if ( "${MYCPPFLAGS}" != "" ) then
+   echo "MYCPPFLAGS is ${MYCPPFLAGS}"
 endif
 # Use modern gcc; gcc 4.4 from slc6 is too antique
 if ( $?MYCVMFS ) then
@@ -475,13 +484,13 @@ endif
 # LD_LIBRARY_PATH adaptation
 #
 if ( $?LD_LIBRARY_PATH ) then
-   setenv LD_LIBRARY_PATH ${base}/lib:${LD_LIBRARY_PATH}
-   echo 'setenv LD_LIBRARY_PATH '"${base}/lib:"'${LD_LIBRARY_PATH}' >> fnlosrc_source.csh
-   echo 'export LD_LIBRARY_PATH='"${base}/lib:"'${LD_LIBRARY_PATH}' >> fnlosrc_source.sh
+   setenv LD_LIBRARY_PATH ${base}/lib:${base}/lib64:${LD_LIBRARY_PATH}
+   echo 'setenv LD_LIBRARY_PATH '"${base}/lib:${base}/lib64:"'${LD_LIBRARY_PATH}' >> fnlosrc_source.csh
+   echo 'export LD_LIBRARY_PATH='"${base}/lib:${base}/lib64:"'${LD_LIBRARY_PATH}' >> fnlosrc_source.sh
 else
-   setenv LD_LIBRARY_PATH ${base}/lib
-   echo 'setenv LD_LIBRARY_PATH '"${base}/lib" >> fnlosrc_source.csh
-   echo 'export LD_LIBRARY_PATH='"${base}/lib" >> fnlosrc_source.sh
+   setenv LD_LIBRARY_PATH ${base}/lib:${base}/lib64
+   echo 'setenv LD_LIBRARY_PATH '"${base}/lib:${base}/lib64" >> fnlosrc_source.csh
+   echo 'export LD_LIBRARY_PATH='"${base}/lib:${base}/lib64" >> fnlosrc_source.sh
 endif
 # $LD_LIBRARY_PATH set from now on ...
 #
@@ -527,7 +536,8 @@ endif
 #------------------------------------------------------------------------------
 if ( ($withnlojetpp || $withsherpa) && ! $mpnnlo ) then
 #   set arc="fastjet-3.3.0" # Last one ok; test 3.3.4
-   set arc="fastjet-3.3.4"
+#   set arc="fastjet-3.3.4"
+   set arc="fastjet-3.4.0" # Required for Rivet 3.1.7
    if ( ! -e ${arc}_installed  ) then
       tar xzf ${arc}.tar.gz
       cd ${arc}
@@ -542,12 +552,14 @@ endif
 #
 #------------------------------------------------------------------------------
 if ( $withcvmfslhapdf == "0" ) then
-#   set arc="LHAPDF-6.2.1"# Test 6.3.0
-   set arc="LHAPDF-6.3.0"
+#   set arc="LHAPDF-6.3.0"# Test 6.5.1
+#   set arc="LHAPDF-6.5.1"
+#   set arc="LHAPDF-6.5.3"
+   set arc="LHAPDF-6.5.4"
    if ( ! -e ${arc}_installed  ) then
       tar xzf ${arc}.tar.gz
       cd ${arc}
-      ./configure --prefix=${base} CPPFLAGS="${MYCPPFLAGS}" ${pythonopt}
+      ./configure --prefix=${base} ${pythonopt} CPPFLAGS="${MYCPPFLAGS}"
       make -j${cores} install
       cd ..
 # Download default PDF sets, only possible if installed with Python support!
@@ -706,7 +718,9 @@ if ( $withoptional ) then
 # Python is enabled by default. If Python with ROOT interfacing is desired, use "--enable-root".
 #------------------------------------------------------------------------------
 #   set arc="YODA-1.6.7"
-   set arc="YODA-1.8.3"
+#   set arc="YODA-1.8.3"
+#   set arc="YODA-1.9.6"
+   set arc="YODA-1.9.7"
    if ( ! -e ${arc}_installed  ) then
       tar xzf ${arc}.tar.gz
       cd ${arc}
@@ -720,16 +734,19 @@ if ( $withoptional ) then
 # Python is enabled by default.
 #------------------------------------------------------------------------------
 #   set arc="Rivet-2.5.4"
-   set arc="Rivet-3.1.4" # Needs HepMC3 and fastjet contrib
+#   set arc="Rivet-3.1.4" # Needs HepMC3 and fastjet contrib
+#   set arc="Rivet-3.1.6" # Needs HepMC3 and fastjet contrib
+   set arc="Rivet-3.1.7" # Needs HepMC3 and fastjet contrib and fastjet >= 3.4.0
    if ( ! -e ${arc}_installed  ) then
       tar xzf ${arc}.tar.gz
       cd ${arc}
 #      ./configure --prefix=${base} ${pyextopt} CPPFLAGS="${MYCPPFLAGS}"
 # ATTENTION: Remove analysis giving compile errors with gcc5
-      rm -f analyses/pluginATLAS/*1790439*
-      rehash
-      ./configure --prefix=${base} ${pyextopt} --with-hepmc3=`HepMC3-config --prefix` CPPFLAGS="${MYCPPFLAGS}"
+#      rm -f analyses/pluginATLAS/*1790439*
+#      rehash
+      ./configure --prefix=${base} ${pyextopt} --with-hepmc3=`${base}/bin/HepMC3-config --prefix` CPPFLAGS="${MYCPPFLAGS}"
       make -j${cores} install
+      cp -p rivetenv.*sh ..
       cd ..
       touch ${arc}_installed
    endif
@@ -737,6 +754,7 @@ if ( $withoptional ) then
 #
 # HOPPET (the latest, v1.1.5, needs to be patched for a perl issue on newer systems):
 # (Problem with perl script in systems with gcc >= 5! Patch needed: hoppet-1.1.5-patched.)
+# (Fortran link problem with gcc11 --> Do not install for now.)
 #------------------------------------------------------------------------------
 # ==> This enables the option --with-hoppet of the fastNLO_toolkit to use
 #     the alpha_s evolutions within HOPPET
@@ -744,37 +762,39 @@ if ( $withoptional ) then
 #     uses the one from the PDFs in LHAPDF
 #
 #   set arc="hoppet-1.1.5"
-   set arc="hoppet-1.2.0"
-   if ( ! -e ${arc}_installed  ) then
+#   set arc="hoppet-1.2.0"
+#   if ( ! -e ${arc}_installed  ) then
 #      tar xzf ${arc}-patched.tar.gz # Need patched version on newer systems like Ubuntu 16.04
-      tar xzf ${arc}.tar.gz
-      cd ${arc}
-      ./configure --prefix=${base}
-      make -j${cores} install
-      cd ..
-      touch ${arc}_installed
-   endif
+#      tar xzf ${arc}.tar.gz
+#      cd ${arc}
+#      ./configure --prefix=${base}
+#      make -j${cores} install
+#      cd ..
+#      touch ${arc}_installed
+#   endif
 #
 #
 # QCDNUM (Use the newer autotools-enabled version 17.01.12):
 # Older QCDNUM versions including 17.00.06 have an error in the time-like evolution
 # of the singlet fragmentation function at NLO, see arXiv:1602.08383.
 # Non-autotools-enabled versions are not supported anymore.
+# (Fortran compile problem with gcc11 --> Do not install for now.)
 #------------------------------------------------------------------------------
 # ==> This enables the option --with-qcdnum of the fastNLO_toolkit to use
 #     the alpha_s evolutions within QCDNUM
 #
 #   set arc="qcdnum-17-01-12"
-   set arc="qcdnum-17-01-14"
-#   set arc="qcdnum-17-01-15" # Provokes error in fastNLO Toolkit check
-   if ( ! -e ${arc}_installed  ) then
-      tar xzf ${arc}.tar.gz
-      cd ${arc}
-      ./configure --prefix=${base}
-      make -j${cores} install
-      cd ..
-      touch ${arc}_installed
-   endif
+#   set arc="qcdnum-17-01-14" # Last default; but does not compile with gfortran 11.1.0
+#   set arc="qcdnum-17-01-15" # Provokes error in fastNLO Toolkit check; does not compile with gfortran 11.1.0
+#   set arc="qcdnum-18-00-00" # Exits with error "STOP iqcFirstWordOfParams no table sets in ww"
+#   if ( ! -e ${arc}_installed  ) then
+#      tar xzf ${arc}.tar.gz
+#      cd ${arc}
+#      ./configure --prefix=${base}
+#      make -j${cores} install
+#      cd ..
+#      touch ${arc}_installed
+#   endif
 endif
 #
 #
@@ -789,16 +809,25 @@ if ( ! $mpnnlo ) then
 #   set arc="fastnlo_toolkit-2.3.1-2657"
 #   set arc="fastnlo_toolkit-2.3.1-2753"
 #   set arc="fastnlo_toolkit-2.3.1-2771"
-   set arc="fastnlo_toolkit-2.5.0-2826"
+#   set arc="fastnlo_toolkit-2.5.0-2826"
+#   set arc="fastnlo_toolkit-2.5.0-2848"
+#   set arc="fastnlo_toolkit-2.5.0-2856"
+#   set arc="fastnlo_toolkit-2.5.1-2890"
+   set arc="fastnlo_toolkit-2.5.1-3011"
    set rev=""
    if ( ! -e ${arc}_installed  ) then
       tar xzf ${arc}${rev}.tar.gz
       cd ${arc}
 # options depending on previous choices: --with-yoda --with-hoppet --with-qcdnum --with-root
 # option to use python interface to library: --enable-pyext
+# in case of problems with doxygen, use option: --disable-doxygen-doc
 #     ./configure --prefix=${base} --enable-pyext
       if ( $withoptional ) then
-         ./configure --prefix=${base} --with-yoda --with-hoppet --with-qcdnum ${rootoptpath} ${pyextopt}
+# QCDNUM-17-xx-xx does not compile with gfortran 11.1.0; QCDNUM-18-xx-xx exits with error on execution in fastNLO Toolkit;
+         ./configure --prefix=${base} --with-yoda ${rootoptpath} ${pyextopt}
+#         ./configure --prefix=${base} --with-yoda --with-hoppet --with-qcdnum ${rootoptpath} ${pyextopt}
+# Doxygen does not work giving TeX compile error and not producing refman.tex
+#         ./configure --prefix=${base} --with-yoda --with-hoppet ${rootoptpath} ${pyextopt} --disable-doxygen-doc
       else
         ./configure --prefix=${base} ${rootoptpath} ${pyextopt}
       endif
@@ -830,7 +859,9 @@ if ( ! $mpnnlo ) then
 #      set arc="fastnlo_interface_nlojet-2.3.1pre-2424"
 #      set arc="fastnlo_interface_nlojet-2.3.1pre-2657"
 #      set arc="fastnlo_interface_nlojet-2.3.1pre-2771"
-      set arc="fastnlo_interface_nlojet-2.5.0-2819"
+#      set arc="fastnlo_interface_nlojet-2.5.0-2819"
+#      set arc="fastnlo_interface_nlojet-2.5.0-2858"
+      set arc="fastnlo_interface_nlojet-2.5.1-2888"
       if ( ! -e ${arc}_installed  ) then
          tar xzf ${arc}.tar.gz
          cd ${arc}
@@ -869,15 +900,13 @@ if ( $withnnlojet ) then
 #------------------------------------------------------------------------------
    if ( ! $mpnnlo ) then
 #      set arc="nnlo-bridge-0.0.40"# updated scale settings for jetpt scale
-      set arc="nnlo-bridge-0.0.46"
-# Previous buggy:    set rev="-rev1683M3"       ; fixed in 0.0.39
-# Improve interface --> M7: set rev="-rev1683M5"; fixed in 0.0.39
-#      set rev="-rev1683M7"                       ; fixed in 0.0.39
-# M1: Two printout fixes
-#      set rev="M1"
-      set rev=""
+#
+# NNLOJET modules1 production version
+#      set arc="nnlo-bridge-0.0.46"
+# NNLOJET modules2 production candidate
+      set arc="nnlo-bridge-1.0.0"
       if ( ! -e ${arc}_installed  ) then
-         tar xzf ${arc}${rev}.tar.gz
+         tar xzf ${arc}.tar.gz
          cd ${arc}
          ./configure --prefix=${base}
          make -j${cores} install
@@ -905,11 +934,17 @@ if ( $withnnlojet ) then
    echo "   OMP_STACKSIZE and OMP_NUM_THREADS have been set to:"
    echo "   $OMP_STACKSIZE and $OMP_NUM_THREADS"
    echo ""
-   set arc="NNLOJET_rev"${revision}
+   set arc="NNLOJET_"${revision}
    if ( ! -e ${arc}_installed  ) then
-   tar xzf ${arc}.tar.gz
+#   tar xzf ${arc}.tar.gz
+# Fixed makefile for gcc11 of revision 5918, or bridge updates for revision 6591
+# Patches required?
+#     set rev="_multicore"
+     set rev="_newcombine" # Has newer nnlojet-combine python code
+     tar xzf ${arc}${rev}.tar.gz
    cd ${arc}/driver
-   make depend
+# Skip depend for now for modules 2 revisions
+#   make depend
    if ( $mpnnlo ) then
       make -j${cores}
    else
@@ -1164,7 +1199,7 @@ endif
 #
 # Clean up unused variables and finish
 #------------------------------------------------------------------------------
-if ( $MYCPPFLAGS == "" ) then
+if ( "${MYCPPFLAGS}" == "" ) then
    unsetenv MYCPPFLAGS
 endif
 if ( $withpython ) then
@@ -1178,6 +1213,12 @@ echo "           fnlosrc_source.[c]sh"
 echo "Please check that environment variables have been set appropriately,"
 echo "e.g. PATH, LD_LIBRARY_PATH, ..."
 echo "and 'source' the corresponding file before using this installation."
+echo ""
+#
+echo "Also do not forget to 'source' the environment of a potential LCG software stack"
+echo "used for the installation;"
+echo "And in case of Rivet usage the corresponding rivetenv.(c)sh files must be"
+echo "'source'ed, too."
 #
 echo ""
 echo "#=============================================================================="