--- a/proton/vpn/backend/networkmanager/killswitch/default/nmkillswitch.py
+++ b/proton/vpn/backend/networkmanager/killswitch/default/nmkillswitch.py
@@ -101,25 +101,4 @@
             logger.error("NetworkManager is not running.")
             return False
 
-        # libnetplan0 is the first version that is present in Ubuntu 22.04. In Ubuntu 24.04
-        # the package name changes to libnetplan1, and it's not compatible with this kill
-        # switch implementation when IPv6 is disabled via the ipv6.disabled kernel option.
-        try:
-            result = subprocess.run(
-                ["/usr/bin/apt", "show", "libnetplan1"],
-                capture_output=True,
-                check=True, shell=False
-            )  # nosec B603:subprocess_without_shell_equals_true
-        except (FileNotFoundError, subprocess.CalledProcessError):
-            pass
-        else:
-            stdout_decoded = result.stdout.decode("utf8").split("\n")
-            for package_info_line in stdout_decoded:
-                if package_info_line.startswith("Version: 1.0.0"):
-                    logger.warning(
-                        "Kill switch is not compatible with libnetplan1 v1.0.0. "
-                        "Please upgrade libnetplan1 package to v1.1.1"
-                    )
-                    break
-
         return True
--- a/proton/vpn/backend/networkmanager/killswitch/wireguard/wgkillswitch.py
+++ b/proton/vpn/backend/networkmanager/killswitch/wireguard/wgkillswitch.py
@@ -114,25 +114,4 @@
             logger.error("NetworkManager is not running.")
             return False
 
-        # libnetplan0 is the first version that is present in Ubuntu 22.04. In Ubuntu 24.04
-        # the package name changes to libnetplan1, and it's not compatible with this kill
-        # switch implementation when IPv6 is disabled via the ipv6.disabled kernel option.
-        try:
-            result = subprocess.run(
-                ["/usr/bin/apt", "show", "libnetplan1"],
-                capture_output=True,
-                check=True, shell=False
-            )  # nosec B603:subprocess_without_shell_equals_true
-        except (FileNotFoundError, subprocess.CalledProcessError):
-            pass
-        else:
-            stdout_decoded = result.stdout.decode("utf8").split("\n")
-            for package_info_line in stdout_decoded:
-                if package_info_line.startswith("Version: 1.0.0"):
-                    logger.warning(
-                        "Kill switch is not compatible with libnetplan1 v1.0.0. "
-                        "Please upgrade libnetplan1 package to v1.1.1"
-                    )
-                    break
-
         return True
Only in b/proton/vpn/backend/networkmanager/killswitch/wireguard: wgkillswitch.py.orig