Add HTTP/2 support and protocol version logging

.pubnub.yml

@@ -1,5 +1,5 @@
 name: python
-version: 10.6.3
+version: 10.7.0
 schema: 1
 scm: github.com/pubnub/python
 sdks:
@@ -18,7 +18,7 @@ sdks:
         distributions:
           - distribution-type: library
             distribution-repository: package
-            package-name: pubnub-10.6.3
+            package-name: pubnub-10.7.0
             location: https://pypi.org/project/pubnub/
             supported-platforms:
               supported-operating-systems:
@@ -94,8 +94,8 @@ sdks:
           -
             distribution-type: library
             distribution-repository: git release
-            package-name: pubnub-10.6.3
-            location: https://github.com/pubnub/python/releases/download/10.6.3/pubnub-10.6.3.tar.gz
+            package-name: pubnub-10.7.0
+            location: https://github.com/pubnub/python/releases/download/10.7.0/pubnub-10.7.0.tar.gz
             supported-platforms:
               supported-operating-systems:
                 Linux:
@@ -169,6 +169,15 @@ sdks:
                 license-url: https://github.com/encode/httpx/blob/master/LICENSE.md
                 is-required: Required
 changelog:
+  - date: 2026-06-08
+    version: 10.7.0
+    changes:
+      - type: feature
+        text: "Enable HTTP/2 negotiation on the synchronous `httpx` handler."
+      - type: feature
+        text: "Add `http_version` field to `ResponseInfo`."
+      - type: feature
+        text: "Log negotiated protocol version at DEBUG level across all request handlers."
   - date: 2026-04-20
     version: 10.6.3
     changes:

CHANGELOG.md

@@ -1,3 +1,11 @@
+## 10.7.0
+June 08 2026
+
+#### Added
+- Enable HTTP/2 negotiation on the synchronous `httpx` handler.
+- Add `http_version` field to `ResponseInfo`.
+- Log negotiated protocol version at DEBUG level across all request handlers.
+
 ## 10.6.3
 April 20 2026
 

pubnub/request_handlers/async_aiohttp.py

@@ -141,7 +141,8 @@ async def async_request(self, options_func, cancellation_event):
                 uuid=uuid,
                 auth_key=auth_key,
                 client_request=None,
-                client_response=response
+                client_response=response,
+                http_version=f"HTTP/{response.version.major}.{response.version.minor}" if response.version else None
             )
 
         # if body is not None and len(body) > 0 and not options.non_json_response:
@@ -172,7 +173,7 @@ async def async_request(self, options_func, cancellation_event):
         else:
             data = "N/A"
 
-        logger.debug(data)
+        logger.debug("[%s %s] %s" % (options.operation_type, response_info.http_version, data))
 
         if response.status not in (200, 307, 204):
 

pubnub/request_handlers/async_httpx.py

@@ -43,7 +43,8 @@ def __init__(self, pubnub):
     async def create_session(self):
         self._session = httpx.AsyncClient(
             timeout=httpx.Timeout(self.pubnub.config.connect_timeout),
-            transport=self._connector
+            transport=self._connector,
+            http2=True
         )
 
     async def close_session(self):
@@ -193,7 +194,8 @@ async def async_request(self, options_func, cancellation_event):
                 uuid=uuid,
                 auth_key=auth_key,
                 client_request=None,
-                client_response=response
+                client_response=response,
+                http_version=response.http_version
             )
 
         # if body is not None and len(body) > 0 and not options.non_json_response:
@@ -224,7 +226,7 @@ async def async_request(self, options_func, cancellation_event):
         else:
             data = "N/A"
 
-        logger.debug(data)
+        logger.debug("[%s %s] %s" % (options.operation_type, response_info.http_version, data))
 
         if response.status_code not in (200, 307, 204):
 

pubnub/request_handlers/httpx.py

@@ -174,7 +174,7 @@ def _ensure_session(self):
         with self._session_lock:
             if self._session is None or self._session.is_closed:
                 logger.debug("Creating new HTTP session")
-                self._session = httpx.Client()
+                self._session = httpx.Client(http2=True)
             return self._session
 
     def close(self):
@@ -318,7 +318,8 @@ def _build_envelope(self, p_options, e_options):
                 origin=res.url.host,
                 uuid=uuid,
                 auth_key=auth_key,
-                client_request=res.request
+                client_request=res.request,
+                http_version=res.http_version
             )
 
         if res.status_code not in [200, 204, 307]:
@@ -433,15 +434,15 @@ def _invoke_request(self, p_options, e_options, base_origin):
 
         try:
             res = session.request(**args)
-            # Safely access response text - read content first for streaming responses
+
             try:
-                logger.debug("GOT %s" % res.text)
+                logger.debug("[%s %s] %s" % (e_options.operation_type, res.http_version, res.text))
             except httpx.ResponseNotRead:
-                # For streaming responses, we need to read first
-                logger.debug("GOT %s" % res.content.decode('utf-8', errors='ignore'))
+                content = res.content.decode('utf-8', errors='ignore')
+                logger.debug("[%s %s] %s" % (e_options.operation_type, res.http_version, content))
             except Exception as e:
-                # Fallback logging in case of any response reading issues
-                logger.debug("GOT response (content access failed: %s)" % str(e))
+                msg = "(content access failed: %s)" % str(e)
+                logger.debug("[%s %s] %s" % (e_options.operation_type, res.http_version, msg))
 
         except httpx.ConnectError as e:
             if use_watchdog and self._watchdog.triggered:

pubnub/request_handlers/requests.py

@@ -174,7 +174,11 @@ def _build_envelope(self, p_options, e_options):
                 origin=url.hostname,
                 uuid=uuid,
                 auth_key=auth_key,
-                client_request=res.request
+                client_request=res.request,
+                http_version=(
+                    f"HTTP/{res.raw.version // 10}.{res.raw.version % 10}"
+                    if res.raw and res.raw.version else None
+                )
             )
 
         if not res.ok:
@@ -268,7 +272,12 @@ def _invoke_request(self, p_options, e_options, base_origin):
 
         try:
             res = self.session.request(**args)
-            logger.debug("GOT %s" % res.text)
+            http_ver = (
+                f"HTTP/{res.raw.version // 10}.{res.raw.version % 10}"
+                if res.raw and res.raw.version else "unknown"
+            )
+            logger.debug("[%s %s] %s" % (e_options.operation_type, http_ver, res.text))
+
         except requests.exceptions.ConnectionError as e:
             raise PubNubException(
                 pn_error=PNERR_CONNECTION_ERROR,

pubnub/structures.py

@@ -80,14 +80,16 @@ def __init__(self, headers, pn_config):
 
 
 class ResponseInfo(object):
-    def __init__(self, status_code, tls_enabled, origin, uuid, auth_key, client_request, client_response=None):
+    def __init__(self, status_code, tls_enabled, origin, uuid, auth_key, client_request,
+                 client_response=None, http_version=None):
         self.status_code = status_code
         self.tls_enabled = tls_enabled
         self.origin = origin
         self.uuid = uuid
         self.auth_key = auth_key
         self.client_request = client_request
         self.client_response = client_response
+        self.http_version = http_version
 
 
 class Envelope(object):

requirements-dev.txt

@@ -5,9 +5,9 @@ flake8>=7.1.2
 pytest>=8.3.5
 pytest-asyncio>=1.0.0
 httpx>=0.28
-h2>=4.1
+h2>=4.3
 requests>=2.32.2
-aiohttp>=3.10.11
+aiohttp>=3.10.11,<3.11
 cbor2>=5.6
 behave>=1.2.6
 vcrpy>=6.0.2

setup.py

@@ -2,7 +2,7 @@
 
 setup(
     name='pubnub',
-    version='10.6.3',
+    version='10.7.0',
     description='PubNub Real-time push service in the cloud',
     author='PubNub',
     author_email='support@pubnub.com',
@@ -32,7 +32,7 @@
     install_requires=[
         'pycryptodomex>=3.3',
         'httpx>=0.28,<1.0',
-        'h2>=4.1',
+        'h2>=4.3',
         'requests>=2.32.2',
         'aiohttp>3.10.11',
         'cbor2>=5.6'

tests/integrational/asyncio/conftest.py

@@ -0,0 +1,15 @@
+import asyncio
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def event_loop_for_sync_tests():
+    try:
+        asyncio.get_running_loop()
+    except RuntimeError:
+        loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(loop)
+        yield
+        loop.close()
+    else:
+        yield