diff --git a/.github/workflows/test-software.eessi.io.yml b/.github/workflows/test-software.eessi.io.yml
index 6dd65fd9c4..ccc23f7bc4 100644
--- a/.github/workflows/test-software.eessi.io.yml
+++ b/.github/workflows/test-software.eessi.io.yml
@@ -42,6 +42,10 @@ jobs:
             EESSI_SOFTWARE_SUBDIR_OVERRIDE: x86_64/intel/sapphirerapids
           - runs_on: ubuntu-24.04
             EESSI_SOFTWARE_SUBDIR_OVERRIDE: x86_64/intel/skylake_avx512
+          - runs_on: ubuntu-24.04
+            EESSI_SOFTWARE_SUBDIR_OVERRIDE: x86_64/intel/icelake
+          - runs_on: ubuntu-24.04
+            EESSI_SOFTWARE_SUBDIR_OVERRIDE: x86_64/intel/cascadelake
           - runs_on: ubuntu-24.04
             EESSI_SOFTWARE_SUBDIR_OVERRIDE: x86_64/generic
     runs-on: ${{ matrix.runs_on }}
diff --git a/.github/workflows/test_compare_stacks.yml b/.github/workflows/test_compare_stacks.yml
index 3e2b6a715c..f57a70aa6c 100644
--- a/.github/workflows/test_compare_stacks.yml
+++ b/.github/workflows/test_compare_stacks.yml
@@ -31,6 +31,8 @@ jobs:
         - x86_64/intel/haswell
         - x86_64/intel/skylake_avx512
         - x86_64/intel/sapphirerapids
+        - x86_64/intel/icelake
+        - x86_64/intel/cascadelake
     steps:
         - name: Check out software-layer repository
           uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
diff --git a/easystacks/software.eessi.io/2023.06/icelake_cclake/072-eb-5.0.0.yml b/easystacks/software.eessi.io/2023.06/icelake_cclake/072-eb-5.0.0.yml
new file mode 100644
index 0000000000..145dda1e10
--- /dev/null
+++ b/easystacks/software.eessi.io/2023.06/icelake_cclake/072-eb-5.0.0.yml
@@ -0,0 +1,14 @@
+# 072-eb-5.0.0.yml: total build duration = ?? minutes
+easyconfigs:
+  - /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/MUSCLE/5.1.0-GCCcore-12.3.0/easybuild/MUSCLE-5.1.0-GCCcore-12.3.0.eb:
+      options:
+        include-easyblocks: /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/MUSCLE/5.1.0-GCCcore-12.3.0/easybuild/reprod/easyblocks/*.py
+  - /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/Gblocks/0.91b/easybuild/Gblocks-0.91b.eb:
+      options:
+        include-easyblocks: /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/Gblocks/0.91b/easybuild/reprod/easyblocks/*.py
+  - /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/bcgTree/1.2.1-foss-2023a/easybuild/bcgTree-1.2.1-foss-2023a.eb:
+      options:
+        include-easyblocks: /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/bcgTree/1.2.1-foss-2023a/easybuild/reprod/easyblocks/*.py
+  - Java-21.eb:
+      options:
+        include-easyblocks: /cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/haswell/software/Java/21.0.5/easybuild/reprod/easyblocks/*.py