diff --git a/dist/cache-save/index.js b/dist/cache-save/index.js
index 271b87a..8fdc7ad 100644
--- a/dist/cache-save/index.js
+++ b/dist/cache-save/index.js
@@ -81174,11 +81174,14 @@ function isCacheFeatureAvailable() {
 exports.isCacheFeatureAvailable = isCacheFeatureAvailable;
 /**
  * Returns this action runs on GitHub Enterprise Server or not.
- * (port from https://github.com/actions/toolkit/blob/457303960f03375db6f033e214b9f90d79c3fe5c/packages/cache/src/internal/cacheUtils.ts#L134)
  */
 function isGhes() {
-    const url = process.env['GITHUB_SERVER_URL'] || 'https://github.com';
-    return new URL(url).hostname.toUpperCase() !== 'GITHUB.COM';
+    const ghUrl = new URL(process.env['GITHUB_SERVER_URL'] || 'https://github.com');
+    const hostname = ghUrl.hostname.trimEnd().toUpperCase();
+    const isGitHubHost = hostname === 'GITHUB.COM';
+    const isGitHubEnterpriseCloudHost = hostname.endsWith('.GHE.COM');
+    const isLocalHost = hostname.endsWith('.LOCALHOST');
+    return !isGitHubHost && !isGitHubEnterpriseCloudHost && !isLocalHost;
 }
 
 
diff --git a/dist/setup/index.js b/dist/setup/index.js
index 771ab51..b810e67 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -93633,11 +93633,14 @@ function isCacheFeatureAvailable() {
 exports.isCacheFeatureAvailable = isCacheFeatureAvailable;
 /**
  * Returns this action runs on GitHub Enterprise Server or not.
- * (port from https://github.com/actions/toolkit/blob/457303960f03375db6f033e214b9f90d79c3fe5c/packages/cache/src/internal/cacheUtils.ts#L134)
  */
 function isGhes() {
-    const url = process.env['GITHUB_SERVER_URL'] || 'https://github.com';
-    return new URL(url).hostname.toUpperCase() !== 'GITHUB.COM';
+    const ghUrl = new URL(process.env['GITHUB_SERVER_URL'] || 'https://github.com');
+    const hostname = ghUrl.hostname.trimEnd().toUpperCase();
+    const isGitHubHost = hostname === 'GITHUB.COM';
+    const isGitHubEnterpriseCloudHost = hostname.endsWith('.GHE.COM');
+    const isLocalHost = hostname.endsWith('.LOCALHOST');
+    return !isGitHubHost && !isGitHubEnterpriseCloudHost && !isLocalHost;
 }
 
 
diff --git a/externals/install-dotnet.sh b/externals/install-dotnet.sh
index 38a160c..a64af37 100755
--- a/externals/install-dotnet.sh
+++ b/externals/install-dotnet.sh
@@ -423,11 +423,17 @@ get_normalized_architecture_for_specific_sdk_version() {
 # args:
 # version or channel - $1
 is_arm64_supported() {
-    #any channel or version that starts with the specified versions
-    case "$1" in
-        ( "1"* | "2"* | "3"*  | "4"* | "5"*) 
-            echo false
-            return 0
+    # Extract the major version by splitting on the dot
+    major_version="${1%%.*}"
+
+    # Check if the major version is a valid number and less than 6
+    case "$major_version" in
+        [0-9]*)  
+            if [ "$major_version" -lt 6 ]; then
+                echo false
+                return 0
+            fi
+            ;;
     esac
 
     echo true
@@ -961,15 +967,16 @@ copy_files_or_dirs_from_list() {
     local root_path="$(remove_trailing_slash "$1")"
     local out_path="$(remove_trailing_slash "$2")"
     local override="$3"
-    local osname="$(get_current_os_name)"
-    local override_switch=$(
-        if [ "$override" = false ]; then
-            if [ "$osname" = "linux-musl" ]; then
-                printf -- "-u";
-            else
-                printf -- "-n";
-            fi
-        fi)
+    local override_switch=""
+
+    if [ "$override" = false ]; then
+        override_switch="-n"
+
+        # use -u instead of -n when it's available
+        if cp -u --help >/dev/null 2>&1; then
+            override_switch="-u"
+        fi
+    fi
 
     cat | uniq | while read -r file_path; do
         local path="$(remove_beginning_slash "${file_path#$root_path}")"
@@ -1735,7 +1742,7 @@ do
             zip_path="$1"
             ;;
         -?|--?|-h|--help|-[Hh]elp)
-            script_name="$(basename "$0")"
+            script_name="dotnet-install.sh"
             echo ".NET Tools Installer"
             echo "Usage:"
             echo "       # Install a .NET SDK of a given Quality from a given Channel"
diff --git a/src/cache-utils.ts b/src/cache-utils.ts
index 4385da2..c487273 100644
--- a/src/cache-utils.ts
+++ b/src/cache-utils.ts
@@ -90,9 +90,16 @@ export function isCacheFeatureAvailable(): boolean {
 
 /**
  * Returns this action runs on GitHub Enterprise Server or not.
- * (port from https://github.com/actions/toolkit/blob/457303960f03375db6f033e214b9f90d79c3fe5c/packages/cache/src/internal/cacheUtils.ts#L134)
  */
 function isGhes(): boolean {
-  const url = process.env['GITHUB_SERVER_URL'] || 'https://github.com';
-  return new URL(url).hostname.toUpperCase() !== 'GITHUB.COM';
+  const ghUrl = new URL(
+    process.env['GITHUB_SERVER_URL'] || 'https://github.com'
+  );
+
+  const hostname = ghUrl.hostname.trimEnd().toUpperCase();
+  const isGitHubHost = hostname === 'GITHUB.COM';
+  const isGitHubEnterpriseCloudHost = hostname.endsWith('.GHE.COM');
+  const isLocalHost = hostname.endsWith('.LOCALHOST');
+
+  return !isGitHubHost && !isGitHubEnterpriseCloudHost && !isLocalHost;
 }