diff --git a/.github/workflows/installer.yml b/.github/workflows/installer.yml
index 178c090f8..b3f6d3f58 100644
--- a/.github/workflows/installer.yml
+++ b/.github/workflows/installer.yml
@@ -24,7 +24,7 @@ jobs:
       matrix:  # just a vector in this case
         make_env: [
           IPC_VERSION=,  # default version
-          IPC_VERSION=IPC4 UNSIGNED_list= SIGNED_list='tgl tgl-h cnl icl jsl',
+          IPC_VERSION=IPC4 UNSIGNED_list= SIGNED_list='tgl tgl-h',
         ]
 
     steps:
diff --git a/installer/GNUmakefile b/installer/GNUmakefile
index 1332f73cd..5c196afa4 100644
--- a/installer/GNUmakefile
+++ b/installer/GNUmakefile
@@ -15,22 +15,26 @@
 # released by Intel.
 
 # See rimage/config/*.toml
-UNSIGNED_list ?= bdw byt cht
-SIGNED_list  ?= apl cnl icl jsl tgl tgl-h
+SIGNED_list  ?= tgl tgl-h
 
 # To find aliases, try in a Linux kernel git clone:
 #
 #   git grep 'sof-.*\.ri' -- sound/soc/
 
-ALIAS_SAME_KEY_list  := glk cfl cml
-ALIAS_OTHER_KEY_list := ehl adl adl-s rpl rpl-s
-ALIAS_list ?= ${ALIAS_SAME_KEY_list} ${ALIAS_OTHER_KEY_list}
+ALIAS_OTHER_KEY_list += adl adl-s rpl rpl-s
 
+# Not supported in the main branch anymore, go to stable-v2.3
+# UNSIGNED_list += bdw byt cht
+# SIGNED_list   += apl cnl icl jsl
+# ALIAS_SAME_KEY_list  += glk cfl cml
+# ALIAS_OTHER_KEY_list += ehl
 
-# Older platforms not released anymore
+# Much older platforms
 # UNSIGNED_list += hsw sue
 # SIGNED_list += kbl skl
 
+ALIAS_list := ${ALIAS_SAME_KEY_list} ${ALIAS_OTHER_KEY_list}
+
 $(info UNSIGNED_list = ${UNSIGNED_list} )
 $(info SIGNED_list   = ${SIGNED_list}   )
 $(info ALIAS_list    = ${ALIAS_list}    )
diff --git a/installer/tests/staging_sofIPC4_ref.txt b/installer/tests/staging_sofIPC4_ref.txt
index 650494da8..2cad7d207 100644
--- a/installer/tests/staging_sofIPC4_ref.txt
+++ b/installer/tests/staging_sofIPC4_ref.txt
@@ -2,39 +2,15 @@
 ├── community
 │   ├── sof-adl-s.ri -> sof-tgl-h.ri
 │   ├── sof-adl.ri -> sof-tgl.ri
-│   ├── sof-cfl.ri -> sof-cnl.ri
-│   ├── sof-cml.ri -> sof-cnl.ri
-│   ├── sof-cnl.ri
-│   ├── sof-ehl.ri -> sof-tgl.ri
-│   ├── sof-glk.ri -> sof-apl.ri
-│   ├── sof-icl.ri
-│   ├── sof-jsl.ri
 │   ├── sof-rpl-s.ri -> sof-tgl-h.ri
 │   ├── sof-rpl.ri -> sof-tgl.ri
 │   ├── sof-tgl-h.ri
 │   └── sof-tgl.ri
 ├── intel-signed
-│   ├── sof-cfl.ri -> sof-cnl.ri
-│   ├── sof-cml.ri -> sof-cnl.ri
-│   └── sof-glk.ri -> sof-apl.ri
 ├── sof-adl-s.ldc -> sof-tgl-h.ldc
 ├── sof-adl-s.ri -> intel-signed/sof-adl-s.ri
 ├── sof-adl.ldc -> sof-tgl.ldc
 ├── sof-adl.ri -> intel-signed/sof-adl.ri
-├── sof-cfl.ldc -> sof-cnl.ldc
-├── sof-cfl.ri -> intel-signed/sof-cfl.ri
-├── sof-cml.ldc -> sof-cnl.ldc
-├── sof-cml.ri -> intel-signed/sof-cml.ri
-├── sof-cnl.ldc
-├── sof-cnl.ri -> intel-signed/sof-cnl.ri
-├── sof-ehl.ldc -> sof-tgl.ldc
-├── sof-ehl.ri -> intel-signed/sof-ehl.ri
-├── sof-glk.ldc -> sof-apl.ldc
-├── sof-glk.ri -> intel-signed/sof-glk.ri
-├── sof-icl.ldc
-├── sof-icl.ri -> intel-signed/sof-icl.ri
-├── sof-jsl.ldc
-├── sof-jsl.ri -> intel-signed/sof-jsl.ri
 ├── sof-rpl-s.ldc -> sof-tgl-h.ldc
 ├── sof-rpl-s.ri -> intel-signed/sof-rpl-s.ri
 ├── sof-rpl.ldc -> sof-tgl.ldc
@@ -44,4 +20,4 @@
 ├── sof-tgl.ldc
 └── sof-tgl.ri -> intel-signed/sof-tgl.ri
 
-2 directories, 42 files
+2 directories, 18 files
diff --git a/installer/tests/staging_sof_ref.txt b/installer/tests/staging_sof_ref.txt
index ffc1c7936..2cad7d207 100644
--- a/installer/tests/staging_sof_ref.txt
+++ b/installer/tests/staging_sof_ref.txt
@@ -2,48 +2,15 @@
 ├── community
 │   ├── sof-adl-s.ri -> sof-tgl-h.ri
 │   ├── sof-adl.ri -> sof-tgl.ri
-│   ├── sof-apl.ri
-│   ├── sof-cfl.ri -> sof-cnl.ri
-│   ├── sof-cml.ri -> sof-cnl.ri
-│   ├── sof-cnl.ri
-│   ├── sof-ehl.ri -> sof-tgl.ri
-│   ├── sof-glk.ri -> sof-apl.ri
-│   ├── sof-icl.ri
-│   ├── sof-jsl.ri
 │   ├── sof-rpl-s.ri -> sof-tgl-h.ri
 │   ├── sof-rpl.ri -> sof-tgl.ri
 │   ├── sof-tgl-h.ri
 │   └── sof-tgl.ri
 ├── intel-signed
-│   ├── sof-cfl.ri -> sof-cnl.ri
-│   ├── sof-cml.ri -> sof-cnl.ri
-│   └── sof-glk.ri -> sof-apl.ri
 ├── sof-adl-s.ldc -> sof-tgl-h.ldc
 ├── sof-adl-s.ri -> intel-signed/sof-adl-s.ri
 ├── sof-adl.ldc -> sof-tgl.ldc
 ├── sof-adl.ri -> intel-signed/sof-adl.ri
-├── sof-apl.ldc
-├── sof-apl.ri -> intel-signed/sof-apl.ri
-├── sof-bdw.ldc
-├── sof-bdw.ri
-├── sof-byt.ldc
-├── sof-byt.ri
-├── sof-cfl.ldc -> sof-cnl.ldc
-├── sof-cfl.ri -> intel-signed/sof-cfl.ri
-├── sof-cht.ldc
-├── sof-cht.ri
-├── sof-cml.ldc -> sof-cnl.ldc
-├── sof-cml.ri -> intel-signed/sof-cml.ri
-├── sof-cnl.ldc
-├── sof-cnl.ri -> intel-signed/sof-cnl.ri
-├── sof-ehl.ldc -> sof-tgl.ldc
-├── sof-ehl.ri -> intel-signed/sof-ehl.ri
-├── sof-glk.ldc -> sof-apl.ldc
-├── sof-glk.ri -> intel-signed/sof-glk.ri
-├── sof-icl.ldc
-├── sof-icl.ri -> intel-signed/sof-icl.ri
-├── sof-jsl.ldc
-├── sof-jsl.ri -> intel-signed/sof-jsl.ri
 ├── sof-rpl-s.ldc -> sof-tgl-h.ldc
 ├── sof-rpl-s.ri -> intel-signed/sof-rpl-s.ri
 ├── sof-rpl.ldc -> sof-tgl.ldc
@@ -53,4 +20,4 @@
 ├── sof-tgl.ldc
 └── sof-tgl.ri -> intel-signed/sof-tgl.ri
 
-2 directories, 51 files
+2 directories, 18 files