diff --git a/.github/workflows/client-test.yml b/.github/workflows/client-test.yml
index 18118c4..f91a95d 100644
--- a/.github/workflows/client-test.yml
+++ b/.github/workflows/client-test.yml
@@ -5,7 +5,7 @@ on:
     branches:    
       - 'main'
     paths:
-      - '*.py'
+      - '**.py'
       - '.github/workflows/*.yml'
       - '.github/workflows/*.json'
       - '!**/README.md'
@@ -19,7 +19,7 @@ on:
     branches:    
       - 'main'
     paths:
-      - '*.py'
+      - '**.py'
       - '.github/workflows/*.yml'
       - '.github/workflows/*.json'
       - '!**/README.md'
diff --git a/src/arduino_iot_cloud/ucloud.py b/src/arduino_iot_cloud/ucloud.py
index 2ff31cc..2208a57 100644
--- a/src/arduino_iot_cloud/ucloud.py
+++ b/src/arduino_iot_cloud/ucloud.py
@@ -7,10 +7,10 @@
 import time
 import sys
 import logging
+import cbor2
 from senml import SenmlPack
 from senml import SenmlRecord
 from arduino_iot_cloud.umqtt import MQTTClient
-
 import asyncio
 from asyncio import CancelledError
 try:
@@ -19,6 +19,10 @@
     # MicroPython doesn't have this exception
     class InvalidStateError(Exception):
         pass
+try:
+    from arduino_iot_cloud._version import __version__
+except (ImportError, AttributeError):
+    __version__ = "1.3.0"
 
 # Server/port for basic auth.
 _DEFAULT_SERVER = "iot.arduino.cc"
@@ -213,6 +217,7 @@ def __init__(
             password = bytes(password, "utf-8")
 
         self.device_topic = b"/a/d/" + device_id + b"/e/i"
+        self.command_topic = b"/a/d/" + device_id + b"/c/up"
 
         # Update RTC from NTP server on MicroPython.
         self.update_systime()
@@ -355,6 +360,10 @@ def poll_discovery(self, aiot=None):
                 lastval_record.add_to_pack(self.senmlpack)
                 self.mqtt.subscribe(self.create_topic("shadow", "i"), qos=1)
                 self.mqtt.publish(self.create_topic("shadow", "o"), self.senmlpack.to_cbor(), qos=1)
+
+            # Push library version and mode.
+            libv = "%s-%s" % (__version__, "async" if self.async_mode else "sync")
+            self.mqtt.publish(self.command_topic, cbor2.dumps(cbor2.CBORTag(67328, [libv])), qos=1)
             logging.info("Device configured via discovery protocol.")
             if self.async_mode:
                 raise DoneException()
diff --git a/tests/ci.py b/tests/ci.py
index 9bf3288..41353e3 100644
--- a/tests/ci.py
+++ b/tests/ci.py
@@ -74,6 +74,7 @@ def on_value_changed(client, value):
             device_id=os.getenv("DEVICE_ID"),
             ssl_params={
                 "pin": "1234",
+                "use_hsm": True,
                 "keyfile": "pkcs11:token=arduino",
                 "certfile": "pkcs11:token=arduino",
                 "ca_certs": "ca-root.pem",