diff --git a/scripts/autorelease.sh b/scripts/autorelease.sh
index aedd26bb..351fa25b 100755
--- a/scripts/autorelease.sh
+++ b/scripts/autorelease.sh
@@ -19,7 +19,7 @@ git clone https://github.com/embeddedt/ModernFix mfix &>/dev/null
 cd mfix
 
 # gather version list
-readarray -t all_versions < <(git ls-remote --heads origin | awk '{print $2}' | sed 's:.*/::' | sort -V)
+readarray -t all_versions < <(scripts/branchlist.sh)
 
 last_released_version=""
 do_release() {
diff --git a/scripts/branchlist.sh b/scripts/branchlist.sh
new file mode 100755
index 00000000..e6c5de00
--- /dev/null
+++ b/scripts/branchlist.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+git ls-remote --heads origin | awk '{print $2}' | sed 's:.*/::' | sort -V | grep -E '^1\.[0-9]*(\.[0-9]*)?$'
diff --git a/scripts/propagate.sh b/scripts/propagate.sh
index 86bc3968..d5481e19 100755
--- a/scripts/propagate.sh
+++ b/scripts/propagate.sh
@@ -20,7 +20,7 @@ git clone https://github.com/embeddedt/ModernFix mfix &>/dev/null
 cd mfix
 
 # gather version list
-readarray -t all_versions < <(git ls-remote --heads origin | awk '{print $2}' | sed 's:.*/::' | sort -V)
+readarray -t all_versions < <(scripts/branchlist.sh)
 echo "found versions: ${all_versions[@]}"
 
 # checkout base version