diff --git a/cice.setup b/cice.setup
index 0e574f803..a855020c5 100755
--- a/cice.setup
+++ b/cice.setup
@@ -1173,7 +1173,7 @@ cp ${rundir}/compile/*.{gcno,gcda} ${testname_base}/codecov_output/
 EOF
 
       cat >> ${tsdir}/report_lcov.csh << EOF
-lcov --gcov-tool gcov -c -d ${rundir}/compile -o ${testname_base}/lcov.info
+lcov --gcov-tool gcov -c --rc geninfo_unexecuted_blocks=1 -d ${rundir}/compile -o ${testname_base}/lcov.info
 if (-s ${testname_base}/lcov.info) then
   set lcovalist = "\${lcovalist} -a ${testname_base}/lcov.info"
 endif
diff --git a/configuration/scripts/machines/Macros.derecho_gnu b/configuration/scripts/machines/Macros.derecho_gnu
index e42e06f06..2a4e62424 100644
--- a/configuration/scripts/machines/Macros.derecho_gnu
+++ b/configuration/scripts/machines/Macros.derecho_gnu
@@ -11,20 +11,16 @@ FREEFLAGS  := -ffree-form
 FFLAGS     := -fconvert=big-endian -fbacktrace -ffree-line-length-none -fallow-argument-mismatch
 FFLAGS_NOOPT:= -O0
 
-ifeq ($(ICE_BLDDEBUG), true)
-  FFLAGS   += -O0 -g -fcheck=bounds -finit-real=nan -fimplicit-none -ffpe-trap=invalid,zero,overflow --std f2008
-#  FFLAGS   += -O0 -g -fcheck=all -finit-real=snan -fimplicit-none -ffpe-trap=invalid,zero,overflow
-  CFLAGS   += -O0
-endif
-
 ifeq ($(ICE_COVERAGE), true)
   FFLAGS   += -O0 -g -fprofile-arcs -ftest-coverage
   CFLAGS   += -O0 -g -coverage
   LDFLAGS  += -g -ftest-coverage -fprofile-arcs
-endif
-
-ifneq ($(ICE_BLDDEBUG), true)
-ifneq ($(ICE_COVERAGE), true)
+else
+ifeq ($(ICE_BLDDEBUG), true)
+  FFLAGS   += -O0 -g -fcheck=bounds -finit-real=nan -fimplicit-none -ffpe-trap=invalid,zero,overflow --std f2008
+#  FFLAGS   += -O0 -g -fcheck=all -finit-real=snan -fimplicit-none -ffpe-trap=invalid,zero,overflow
+  CFLAGS   += -O0
+else
   FFLAGS   += -O2
   CFLAGS   += -O2
 endif
diff --git a/configuration/scripts/machines/env.derecho_gnu b/configuration/scripts/machines/env.derecho_gnu
index 5c4ca46f0..330509636 100644
--- a/configuration/scripts/machines/env.derecho_gnu
+++ b/configuration/scripts/machines/env.derecho_gnu
@@ -10,30 +10,30 @@ if ("$inp" != "-nomodules") then
 source ${MODULESHOME}/init/csh
 
 module --force purge
-module load ncarenv/23.06
+module load ncarenv/24.12
+module reset
 module load craype
-module load gcc/12.2.0
+module load gcc/12.4.0
 module load ncarcompilers
-module load cray-mpich/8.1.25
+module load cray-mpich/8.1.29
 module load netcdf/4.9.2
-#module load hdf5/1.12.2
-#module load netcdf-mpi/4.9.2
-
-module load cray-libsci/23.02.1.1
+module load cray-libsci/24.03.0
 
 if ($?ICE_IOTYPE) then
 if ($ICE_IOTYPE =~ pio*) then
   module unload	netcdf
   module load netcdf-mpi/4.9.2
-  module load parallel-netcdf/1.12.3
+  module load parallel-netcdf/1.14.0
   if ($ICE_IOTYPE == "pio1") then
     module load parallelio/1.10.1
   else
-    module load parallelio/2.6.2
+    module load parallelio/2.6.3
   endif
 endif
 endif
 
+module load lcov
+
 if ($?ICE_BFBTYPE) then
 if ($ICE_BFBTYPE =~ qcchk*) then
   module load conda
@@ -61,7 +61,7 @@ setenv OMP_STACKSIZE 64M
 setenv ICE_MACHINE_MACHNAME derecho
 setenv ICE_MACHINE_MACHINFO "HPE Cray EX Milan Slingshot 11"
 setenv ICE_MACHINE_ENVNAME gnu
-setenv ICE_MACHINE_ENVINFO "gcc 12.2.0 20220819, cray-mpich 8.1.25, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.2"
+setenv ICE_MACHINE_ENVINFO "gcc 12.4.0, cray-mpich 8.1.29, netcdf4.9.2, pnetcdf1.14.0, pio1.10.1, pio2.6.3"
 setenv ICE_MACHINE_MAKE gmake
 setenv ICE_MACHINE_WKDIR /glade/derecho/scratch/$user/CICE_RUNS
 setenv ICE_MACHINE_INPUTDATA /glade/campaign/cesm/development/pcwg
diff --git a/configuration/scripts/tests/cice.lcov.csh b/configuration/scripts/tests/cice.lcov.csh
index 5772833d1..39e16aa45 100644
--- a/configuration/scripts/tests/cice.lcov.csh
+++ b/configuration/scripts/tests/cice.lcov.csh
@@ -14,7 +14,7 @@ cp -p -r ${lcovhtmldir} ${lcovrepo}/
 
 cd ${lcovrepo}
 set covp0 = `grep message coverage.json | cut -d : -f 2 | cut -d \" -f 2 | cut -d % -f 1`
-set covp  = `grep -i headerCovTableEntry ${lcovhtmldir}/index.html | grep % | head -1 | cut -d \> -f 2 | cut -d % -f 1`
+set covp  = `grep -i headerCovTableEntry ${lcovhtmldir}/index.html | grep % | head -1 | cut -d \> -f 2 | cut -d \& -f 1`
 set covpi = `echo $covp | cut -d . -f 1`
 
 set lcovhtmlname = "${covpi}%:${report_name}"