From da9b2db3af55f8508689f5c5d3aab67c01a3edbd Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Thu, 7 May 2020 16:46:15 +0100
Subject: [PATCH 01/15] Drop support for redis.dbid (#7450)

Since we only use pubsub, the dbid is irrelevant.
---
 changelog.d/7450.feature           | 1 +
 synapse/config/redis.py            | 1 -
 synapse/replication/tcp/handler.py | 4 +---
 3 files changed, 2 insertions(+), 4 deletions(-)
 create mode 100644 changelog.d/7450.feature

diff --git a/changelog.d/7450.feature b/changelog.d/7450.feature
new file mode 100644
index 000000000..ce6140fdd
--- /dev/null
+++ b/changelog.d/7450.feature
@@ -0,0 +1 @@
+Add support for running replication over Redis when using workers.
diff --git a/synapse/config/redis.py b/synapse/config/redis.py
index 81a27619e..d5d3ca1c9 100644
--- a/synapse/config/redis.py
+++ b/synapse/config/redis.py
@@ -31,5 +31,4 @@ class RedisConfig(Config):
 
         self.redis_host = redis_config.get("host", "localhost")
         self.redis_port = redis_config.get("port", 6379)
-        self.redis_dbid = redis_config.get("dbid")
         self.redis_password = redis_config.get("password")
diff --git a/synapse/replication/tcp/handler.py b/synapse/replication/tcp/handler.py
index b14a3d9fc..4328b38e9 100644
--- a/synapse/replication/tcp/handler.py
+++ b/synapse/replication/tcp/handler.py
@@ -131,10 +131,9 @@ class ReplicationCommandHandler:
             import txredisapi
 
             logger.info(
-                "Connecting to redis (host=%r port=%r DBID=%r)",
+                "Connecting to redis (host=%r port=%r)",
                 hs.config.redis_host,
                 hs.config.redis_port,
-                hs.config.redis_dbid,
             )
 
             # We need two connections to redis, one for the subscription stream and
@@ -145,7 +144,6 @@ class ReplicationCommandHandler:
             outbound_redis_connection = txredisapi.lazyConnection(
                 host=hs.config.redis_host,
                 port=hs.config.redis_port,
-                dbid=hs.config.redis_dbid,
                 password=hs.config.redis.redis_password,
                 reconnect=True,
             )

From aa5aa6f96abaeb3470513a396d087e2a9cdd3597 Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Thu, 7 May 2020 19:51:38 +0100
Subject: [PATCH 02/15] Fix errors from malformed log line (#7454)

---
 changelog.d/7454.feature         | 1 +
 synapse/replication/tcp/redis.py | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 changelog.d/7454.feature

diff --git a/changelog.d/7454.feature b/changelog.d/7454.feature
new file mode 100644
index 000000000..ce6140fdd
--- /dev/null
+++ b/changelog.d/7454.feature
@@ -0,0 +1 @@
+Add support for running replication over Redis when using workers.
diff --git a/synapse/replication/tcp/redis.py b/synapse/replication/tcp/redis.py
index db69f9255..55bfa71df 100644
--- a/synapse/replication/tcp/redis.py
+++ b/synapse/replication/tcp/redis.py
@@ -96,7 +96,7 @@ class RedisSubscriber(txredisapi.SubscriberProtocol, AbstractConnection):
             cmd = parse_command_from_line(message)
         except Exception:
             logger.exception(
-                "[%s] failed to parse line: %r", message,
+                "Failed to parse replication line: %r", message,
             )
             return
 

From 0ad6d28b0dec06d5e7478984280b4e81ef0f0256 Mon Sep 17 00:00:00 2001
From: Patrick Cloke <clokep@users.noreply.github.com>
Date: Fri, 8 May 2020 16:08:58 -0400
Subject: [PATCH 03/15] Rework UI Auth session validation for registration
 (#7455)

Be less strict about validation of UI authentication sessions during
registration to match client expecations.
---
 changelog.d/7455.bugfix                     |   1 +
 synapse/handlers/auth.py                    |  54 +++-
 synapse/rest/client/v2_alpha/register.py    |   1 +
 synapse/storage/data_stores/main/ui_auth.py |  21 ++
 tests/rest/client/v2_alpha/test_auth.py     | 326 ++++++++++++++------
 tox.ini                                     |   1 +
 6 files changed, 291 insertions(+), 113 deletions(-)
 create mode 100644 changelog.d/7455.bugfix

diff --git a/changelog.d/7455.bugfix b/changelog.d/7455.bugfix
new file mode 100644
index 000000000..d1693a7f2
--- /dev/null
+++ b/changelog.d/7455.bugfix
@@ -0,0 +1 @@
+Ensure that a user inteactive authentication session is tied to a single request.
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index 7613e5b6a..9c7170237 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -252,6 +252,7 @@ class AuthHandler(BaseHandler):
         clientdict: Dict[str, Any],
         clientip: str,
         description: str,
+        validate_clientdict: bool = True,
     ) -> Tuple[dict, dict, str]:
         """
         Takes a dictionary sent by the client in the login / registration
@@ -277,6 +278,10 @@ class AuthHandler(BaseHandler):
             description: A human readable string to be displayed to the user that
                          describes the operation happening on their account.
 
+            validate_clientdict: Whether to validate that the operation happening
+                                 on the account has not changed. If this is false,
+                                 the client dict is persisted instead of validated.
+
         Returns:
             A tuple of (creds, params, session_id).
 
@@ -317,30 +322,51 @@ class AuthHandler(BaseHandler):
             except StoreError:
                 raise SynapseError(400, "Unknown session ID: %s" % (sid,))
 
+            # If the client provides parameters, update what is persisted,
+            # otherwise use whatever was last provided.
+            #
+            # This was designed to allow the client to omit the parameters
+            # and just supply the session in subsequent calls so it split
+            # auth between devices by just sharing the session, (eg. so you
+            # could continue registration from your phone having clicked the
+            # email auth link on there). It's probably too open to abuse
+            # because it lets unauthenticated clients store arbitrary objects
+            # on a homeserver.
+            #
+            # Revisit: Assuming the REST APIs do sensible validation, the data
+            # isn't arbitrary.
+            #
+            # Note that the registration endpoint explicitly removes the
+            # "initial_device_display_name" parameter if it is provided
+            # without a "password" parameter. See the changes to
+            # synapse.rest.client.v2_alpha.register.RegisterRestServlet.on_POST
+            # in commit 544722bad23fc31056b9240189c3cbbbf0ffd3f9.
             if not clientdict:
-                # This was designed to allow the client to omit the parameters
-                # and just supply the session in subsequent calls so it split
-                # auth between devices by just sharing the session, (eg. so you
-                # could continue registration from your phone having clicked the
-                # email auth link on there). It's probably too open to abuse
-                # because it lets unauthenticated clients store arbitrary objects
-                # on a homeserver.
-                # Revisit: Assuming the REST APIs do sensible validation, the data
-                # isn't arbitrary.
                 clientdict = session.clientdict
 
             # Ensure that the queried operation does not vary between stages of
             # the UI authentication session. This is done by generating a stable
-            # comparator based on the URI, method, and body (minus the auth dict)
-            # and storing it during the initial query. Subsequent queries ensure
-            # that this comparator has not changed.
-            comparator = (uri, method, clientdict)
-            if (session.uri, session.method, session.clientdict) != comparator:
+            # comparator based on the URI, method, and client dict (minus the
+            # auth dict) and storing it during the initial query. Subsequent
+            # queries ensure that this comparator has not changed.
+            if validate_clientdict:
+                session_comparator = (session.uri, session.method, session.clientdict)
+                comparator = (uri, method, clientdict)
+            else:
+                session_comparator = (session.uri, session.method)  # type: ignore
+                comparator = (uri, method)  # type: ignore
+
+            if session_comparator != comparator:
                 raise SynapseError(
                     403,
                     "Requested operation has changed during the UI authentication session.",
                 )
 
+            # For backwards compatibility the registration endpoint persists
+            # changes to the client dict instead of validating them.
+            if not validate_clientdict:
+                await self.store.set_ui_auth_clientdict(sid, clientdict)
+
         if not authdict:
             raise InteractiveAuthIncompleteError(
                 self._auth_dict_for_flows(flows, session.session_id)
diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index af08cc6cc..e77dd6bf9 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/synapse/rest/client/v2_alpha/register.py
@@ -516,6 +516,7 @@ class RegisterRestServlet(RestServlet):
             body,
             self.hs.get_ip_from_request(request),
             "register a new account",
+            validate_clientdict=False,
         )
 
         # Check that we're not trying to register a denied 3pid.
diff --git a/synapse/storage/data_stores/main/ui_auth.py b/synapse/storage/data_stores/main/ui_auth.py
index c8eebc937..1d8ee22fb 100644
--- a/synapse/storage/data_stores/main/ui_auth.py
+++ b/synapse/storage/data_stores/main/ui_auth.py
@@ -172,6 +172,27 @@ class UIAuthWorkerStore(SQLBaseStore):
 
         return results
 
+    async def set_ui_auth_clientdict(
+        self, session_id: str, clientdict: JsonDict
+    ) -> None:
+        """
+        Store an updated clientdict for a given session ID.
+
+        Args:
+            session_id: The ID of this session as returned from check_auth
+            clientdict:
+                The dictionary from the client root level, not the 'auth' key.
+        """
+        # The clientdict gets stored as JSON.
+        clientdict_json = json.dumps(clientdict)
+
+        self.db.simple_update_one(
+            table="ui_auth_sessions",
+            keyvalues={"session_id": session_id},
+            updatevalues={"clientdict": clientdict_json},
+            desc="set_ui_auth_client_dict",
+        )
+
     async def set_ui_auth_session_data(self, session_id: str, key: str, value: Any):
         """
         Store a key-value pair into the sessions data associated with this
diff --git a/tests/rest/client/v2_alpha/test_auth.py b/tests/rest/client/v2_alpha/test_auth.py
index 587be7b2e..a56c50a5b 100644
--- a/tests/rest/client/v2_alpha/test_auth.py
+++ b/tests/rest/client/v2_alpha/test_auth.py
@@ -12,16 +12,20 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
+from typing import List, Union
 
 from twisted.internet.defer import succeed
 
 import synapse.rest.admin
 from synapse.api.constants import LoginType
 from synapse.handlers.ui_auth.checkers import UserInteractiveAuthChecker
-from synapse.rest.client.v2_alpha import auth, register
+from synapse.http.site import SynapseRequest
+from synapse.rest.client.v1 import login
+from synapse.rest.client.v2_alpha import auth, devices, register
+from synapse.types import JsonDict
 
 from tests import unittest
+from tests.server import FakeChannel
 
 
 class DummyRecaptchaChecker(UserInteractiveAuthChecker):
@@ -34,11 +38,15 @@ class DummyRecaptchaChecker(UserInteractiveAuthChecker):
         return succeed(True)
 
 
+class DummyPasswordChecker(UserInteractiveAuthChecker):
+    def check_auth(self, authdict, clientip):
+        return succeed(authdict["identifier"]["user"])
+
+
 class FallbackAuthTests(unittest.HomeserverTestCase):
 
     servlets = [
         auth.register_servlets,
-        synapse.rest.admin.register_servlets_for_client_rest_resource,
         register.register_servlets,
     ]
     hijack_auth = False
@@ -59,18 +67,51 @@ class FallbackAuthTests(unittest.HomeserverTestCase):
         auth_handler = hs.get_auth_handler()
         auth_handler.checkers[LoginType.RECAPTCHA] = self.recaptcha_checker
 
-    @unittest.INFO
-    def test_fallback_captcha(self):
+    def register(self, expected_response: int, body: JsonDict) -> FakeChannel:
+        """Make a register request."""
+        request, channel = self.make_request(
+            "POST", "register", body
+        )  # type: SynapseRequest, FakeChannel
+        self.render(request)
+
+        self.assertEqual(request.code, expected_response)
+        return channel
+
+    def recaptcha(
+        self, session: str, expected_post_response: int, post_session: str = None
+    ) -> None:
+        """Get and respond to a fallback recaptcha. Returns the second request."""
+        if post_session is None:
+            post_session = session
+
+        request, channel = self.make_request(
+            "GET", "auth/m.login.recaptcha/fallback/web?session=" + session
+        )  # type: SynapseRequest, FakeChannel
+        self.render(request)
+        self.assertEqual(request.code, 200)
 
         request, channel = self.make_request(
             "POST",
-            "register",
-            {"username": "user", "type": "m.login.password", "password": "bar"},
+            "auth/m.login.recaptcha/fallback/web?session="
+            + post_session
+            + "&g-recaptcha-response=a",
         )
         self.render(request)
+        self.assertEqual(request.code, expected_post_response)
 
+        # The recaptcha handler is called with the response given
+        attempts = self.recaptcha_checker.recaptcha_attempts
+        self.assertEqual(len(attempts), 1)
+        self.assertEqual(attempts[0][0]["response"], "a")
+
+    @unittest.INFO
+    def test_fallback_captcha(self):
+        """Ensure that fallback auth via a captcha works."""
         # Returns a 401 as per the spec
-        self.assertEqual(request.code, 401)
+        channel = self.register(
+            401, {"username": "user", "type": "m.login.password", "password": "bar"},
+        )
+
         # Grab the session
         session = channel.json_body["session"]
         # Assert our configured public key is being given
@@ -78,60 +119,32 @@ class FallbackAuthTests(unittest.HomeserverTestCase):
             channel.json_body["params"]["m.login.recaptcha"]["public_key"], "brokencake"
         )
 
-        request, channel = self.make_request(
-            "GET", "auth/m.login.recaptcha/fallback/web?session=" + session
-        )
-        self.render(request)
-        self.assertEqual(request.code, 200)
-
-        request, channel = self.make_request(
-            "POST",
-            "auth/m.login.recaptcha/fallback/web?session="
-            + session
-            + "&g-recaptcha-response=a",
-        )
-        self.render(request)
-        self.assertEqual(request.code, 200)
-
-        # The recaptcha handler is called with the response given
-        attempts = self.recaptcha_checker.recaptcha_attempts
-        self.assertEqual(len(attempts), 1)
-        self.assertEqual(attempts[0][0]["response"], "a")
+        # Complete the recaptcha step.
+        self.recaptcha(session, 200)
 
         # also complete the dummy auth
-        request, channel = self.make_request(
-            "POST", "register", {"auth": {"session": session, "type": "m.login.dummy"}}
-        )
-        self.render(request)
+        self.register(200, {"auth": {"session": session, "type": "m.login.dummy"}})
 
         # Now we should have fulfilled a complete auth flow, including
         # the recaptcha fallback step, we can then send a
         # request to the register API with the session in the authdict.
-        request, channel = self.make_request(
-            "POST", "register", {"auth": {"session": session}}
-        )
-        self.render(request)
-        self.assertEqual(channel.code, 200)
+        channel = self.register(200, {"auth": {"session": session}})
 
         # We're given a registered user.
         self.assertEqual(channel.json_body["user_id"], "@user:test")
 
-    def test_cannot_change_operation(self):
+    def test_legacy_registration(self):
         """
-        The initial requested operation cannot be modified during the user interactive authentication session.
+        Registration allows the parameters to vary through the process.
         """
 
         # Make the initial request to register. (Later on a different password
         # will be used.)
-        request, channel = self.make_request(
-            "POST",
-            "register",
-            {"username": "user", "type": "m.login.password", "password": "bar"},
-        )
-        self.render(request)
-
         # Returns a 401 as per the spec
-        self.assertEqual(request.code, 401)
+        channel = self.register(
+            401, {"username": "user", "type": "m.login.password", "password": "bar"},
+        )
+
         # Grab the session
         session = channel.json_body["session"]
         # Assert our configured public key is being given
@@ -139,65 +152,39 @@ class FallbackAuthTests(unittest.HomeserverTestCase):
             channel.json_body["params"]["m.login.recaptcha"]["public_key"], "brokencake"
         )
 
-        request, channel = self.make_request(
-            "GET", "auth/m.login.recaptcha/fallback/web?session=" + session
-        )
-        self.render(request)
-        self.assertEqual(request.code, 200)
-
-        request, channel = self.make_request(
-            "POST",
-            "auth/m.login.recaptcha/fallback/web?session="
-            + session
-            + "&g-recaptcha-response=a",
-        )
-        self.render(request)
-        self.assertEqual(request.code, 200)
-
-        # The recaptcha handler is called with the response given
-        attempts = self.recaptcha_checker.recaptcha_attempts
-        self.assertEqual(len(attempts), 1)
-        self.assertEqual(attempts[0][0]["response"], "a")
+        # Complete the recaptcha step.
+        self.recaptcha(session, 200)
 
         # also complete the dummy auth
-        request, channel = self.make_request(
-            "POST", "register", {"auth": {"session": session, "type": "m.login.dummy"}}
-        )
-        self.render(request)
+        self.register(200, {"auth": {"session": session, "type": "m.login.dummy"}})
 
         # Now we should have fulfilled a complete auth flow, including
         # the recaptcha fallback step. Make the initial request again, but
-        # with a different password. This causes the request to fail since the
-        # operaiton was modified during the ui auth session.
-        request, channel = self.make_request(
-            "POST",
-            "register",
+        # with a changed password. This still completes.
+        channel = self.register(
+            200,
             {
                 "username": "user",
                 "type": "m.login.password",
-                "password": "foo",  # Note this doesn't match the original request.
+                "password": "foo",  # Note that this is different.
                 "auth": {"session": session},
             },
         )
-        self.render(request)
-        self.assertEqual(channel.code, 403)
+
+        # We're given a registered user.
+        self.assertEqual(channel.json_body["user_id"], "@user:test")
 
     def test_complete_operation_unknown_session(self):
         """
         Attempting to mark an invalid session as complete should error.
         """
-
         # Make the initial request to register. (Later on a different password
         # will be used.)
-        request, channel = self.make_request(
-            "POST",
-            "register",
-            {"username": "user", "type": "m.login.password", "password": "bar"},
-        )
-        self.render(request)
-
         # Returns a 401 as per the spec
-        self.assertEqual(request.code, 401)
+        channel = self.register(
+            401, {"username": "user", "type": "m.login.password", "password": "bar"}
+        )
+
         # Grab the session
         session = channel.json_body["session"]
         # Assert our configured public key is being given
@@ -205,19 +192,160 @@ class FallbackAuthTests(unittest.HomeserverTestCase):
             channel.json_body["params"]["m.login.recaptcha"]["public_key"], "brokencake"
         )
 
-        request, channel = self.make_request(
-            "GET", "auth/m.login.recaptcha/fallback/web?session=" + session
-        )
-        self.render(request)
-        self.assertEqual(request.code, 200)
+        # Attempt to complete the recaptcha step with an unknown session.
+        # This results in an error.
+        self.recaptcha(session, 400, session + "unknown")
 
-        # Attempt to complete an unknown session, which should return an error.
-        unknown_session = session + "unknown"
+
+class UIAuthTests(unittest.HomeserverTestCase):
+    servlets = [
+        auth.register_servlets,
+        devices.register_servlets,
+        login.register_servlets,
+        synapse.rest.admin.register_servlets_for_client_rest_resource,
+        register.register_servlets,
+    ]
+
+    def prepare(self, reactor, clock, hs):
+        auth_handler = hs.get_auth_handler()
+        auth_handler.checkers[LoginType.PASSWORD] = DummyPasswordChecker(hs)
+
+        self.user_pass = "pass"
+        self.user = self.register_user("test", self.user_pass)
+        self.user_tok = self.login("test", self.user_pass)
+
+    def get_device_ids(self) -> List[str]:
+        # Get the list of devices so one can be deleted.
         request, channel = self.make_request(
-            "POST",
-            "auth/m.login.recaptcha/fallback/web?session="
-            + unknown_session
-            + "&g-recaptcha-response=a",
-        )
+            "GET", "devices", access_token=self.user_tok,
+        )  # type: SynapseRequest, FakeChannel
         self.render(request)
-        self.assertEqual(request.code, 400)
+
+        # Get the ID of the device.
+        self.assertEqual(request.code, 200)
+        return [d["device_id"] for d in channel.json_body["devices"]]
+
+    def delete_device(
+        self, device: str, expected_response: int, body: Union[bytes, JsonDict] = b""
+    ) -> FakeChannel:
+        """Delete an individual device."""
+        request, channel = self.make_request(
+            "DELETE", "devices/" + device, body, access_token=self.user_tok
+        )  # type: SynapseRequest, FakeChannel
+        self.render(request)
+
+        # Ensure the response is sane.
+        self.assertEqual(request.code, expected_response)
+
+        return channel
+
+    def delete_devices(self, expected_response: int, body: JsonDict) -> FakeChannel:
+        """Delete 1 or more devices."""
+        # Note that this uses the delete_devices endpoint so that we can modify
+        # the payload half-way through some tests.
+        request, channel = self.make_request(
+            "POST", "delete_devices", body, access_token=self.user_tok,
+        )  # type: SynapseRequest, FakeChannel
+        self.render(request)
+
+        # Ensure the response is sane.
+        self.assertEqual(request.code, expected_response)
+
+        return channel
+
+    def test_ui_auth(self):
+        """
+        Test user interactive authentication outside of registration.
+        """
+        device_id = self.get_device_ids()[0]
+
+        # Attempt to delete this device.
+        # Returns a 401 as per the spec
+        channel = self.delete_device(device_id, 401)
+
+        # Grab the session
+        session = channel.json_body["session"]
+        # Ensure that flows are what is expected.
+        self.assertIn({"stages": ["m.login.password"]}, channel.json_body["flows"])
+
+        # Make another request providing the UI auth flow.
+        self.delete_device(
+            device_id,
+            200,
+            {
+                "auth": {
+                    "type": "m.login.password",
+                    "identifier": {"type": "m.id.user", "user": self.user},
+                    "password": self.user_pass,
+                    "session": session,
+                },
+            },
+        )
+
+    def test_cannot_change_body(self):
+        """
+        The initial requested client dict cannot be modified during the user interactive authentication session.
+        """
+        # Create a second login.
+        self.login("test", self.user_pass)
+
+        device_ids = self.get_device_ids()
+        self.assertEqual(len(device_ids), 2)
+
+        # Attempt to delete the first device.
+        # Returns a 401 as per the spec
+        channel = self.delete_devices(401, {"devices": [device_ids[0]]})
+
+        # Grab the session
+        session = channel.json_body["session"]
+        # Ensure that flows are what is expected.
+        self.assertIn({"stages": ["m.login.password"]}, channel.json_body["flows"])
+
+        # Make another request providing the UI auth flow, but try to delete the
+        # second device. This results in an error.
+        self.delete_devices(
+            403,
+            {
+                "devices": [device_ids[1]],
+                "auth": {
+                    "type": "m.login.password",
+                    "identifier": {"type": "m.id.user", "user": self.user},
+                    "password": self.user_pass,
+                    "session": session,
+                },
+            },
+        )
+
+    def test_cannot_change_uri(self):
+        """
+        The initial requested URI cannot be modified during the user interactive authentication session.
+        """
+        # Create a second login.
+        self.login("test", self.user_pass)
+
+        device_ids = self.get_device_ids()
+        self.assertEqual(len(device_ids), 2)
+
+        # Attempt to delete the first device.
+        # Returns a 401 as per the spec
+        channel = self.delete_device(device_ids[0], 401)
+
+        # Grab the session
+        session = channel.json_body["session"]
+        # Ensure that flows are what is expected.
+        self.assertIn({"stages": ["m.login.password"]}, channel.json_body["flows"])
+
+        # Make another request providing the UI auth flow, but try to delete the
+        # second device. This results in an error.
+        self.delete_device(
+            device_ids[1],
+            403,
+            {
+                "auth": {
+                    "type": "m.login.password",
+                    "identifier": {"type": "m.id.user", "user": self.user},
+                    "password": self.user_pass,
+                    "session": session,
+                },
+            },
+        )
diff --git a/tox.ini b/tox.ini
index eccc44e43..8aef52021 100644
--- a/tox.ini
+++ b/tox.ini
@@ -207,6 +207,7 @@ commands = mypy \
             synapse/util/caches/stream_change_cache.py \
             tests/replication/tcp/streams \
             tests/test_utils \
+            tests/rest/client/v2_alpha/test_auth.py \
             tests/util/test_stream_change_cache.py
 
 # To find all folders that pass mypy you run:

From 85155654c52bb9999b6b4bcbcf84cd68505d4c82 Mon Sep 17 00:00:00 2001
From: Neil Johnson <neil@matrix.org>
Date: Mon, 11 May 2020 13:21:15 +0100
Subject: [PATCH 04/15] Documentation on setting up redis (#7446)

---
 changelog.d/7446.feature |   1 +
 docs/workers.md          | 165 +++++++++++++++++++++++++--------------
 2 files changed, 107 insertions(+), 59 deletions(-)
 create mode 100644 changelog.d/7446.feature

diff --git a/changelog.d/7446.feature b/changelog.d/7446.feature
new file mode 100644
index 000000000..ce6140fdd
--- /dev/null
+++ b/changelog.d/7446.feature
@@ -0,0 +1 @@
+Add support for running replication over Redis when using workers.
diff --git a/docs/workers.md b/docs/workers.md
index cc0b23197..7512eff43 100644
--- a/docs/workers.md
+++ b/docs/workers.md
@@ -1,23 +1,31 @@
 # Scaling synapse via workers
 
-Synapse has experimental support for splitting out functionality into
-multiple separate python processes, helping greatly with scalability.  These
+For small instances it recommended to run Synapse in monolith mode (the
+default). For larger instances where performance is a concern it can be helpful
+to split out functionality into multiple separate python processes. These
 processes are called 'workers', and are (eventually) intended to scale
 horizontally independently.
 
-All of the below is highly experimental and subject to change as Synapse evolves,
-but documenting it here to help folks needing highly scalable Synapses similar
-to the one running matrix.org!
+Synapse's worker support is under active development and subject to change as
+we attempt to rapidly scale ever larger Synapse instances. However we are
+documenting it here to help admins needing a highly scalable Synapse instance
+similar to the one running `matrix.org`.
 
-All processes continue to share the same database instance, and as such, workers
-only work with postgres based synapse deployments (sharing a single sqlite
-across multiple processes is a recipe for disaster, plus you should be using
-postgres anyway if you care about scalability).
+All processes continue to share the same database instance, and as such,
+workers only work with PostgreSQL-based Synapse deployments. SQLite should only
+be used for demo purposes and any admin considering workers should already be
+running PostgreSQL.
 
-The workers communicate with the master synapse process via a synapse-specific
-TCP protocol called 'replication' - analogous to MySQL or Postgres style
-database replication; feeding a stream of relevant data to the workers so they
-can be kept in sync with the main synapse process and database state.
+## Master/worker communication
+
+The workers communicate with the master process via a Synapse-specific protocol
+called 'replication' (analogous to MySQL- or Postgres-style database
+replication) which feeds a stream of relevant data from the master to the
+workers so they can be kept in sync with the master process and database state.
+
+Additionally, workers may make HTTP requests to the master, to send information
+in the other direction. Typically this is used for operations which need to
+wait for a reply - such as sending an event.
 
 ## Configuration
 
@@ -27,66 +35,61 @@ the correct worker, or to the main synapse instance. Note that this includes
 requests made to the federation port. See [reverse_proxy.md](reverse_proxy.md)
 for information on setting up a reverse proxy.
 
-To enable workers, you need to add two replication listeners to the master
-synapse, e.g.:
+To enable workers, you need to add *two* replication listeners to the
+main Synapse configuration file (`homeserver.yaml`). For example:
 
-    listeners:
-      # The TCP replication port
-      - port: 9092
-        bind_address: '127.0.0.1'
-        type: replication
-      # The HTTP replication port
-      - port: 9093
-        bind_address: '127.0.0.1'
-        type: http
-        resources:
-         - names: [replication]
+```yaml
+listeners:
+  # The TCP replication port
+  - port: 9092
+    bind_address: '127.0.0.1'
+    type: replication
+
+  # The HTTP replication port
+  - port: 9093
+    bind_address: '127.0.0.1'
+    type: http
+    resources:
+     - names: [replication]
+```
 
 Under **no circumstances** should these replication API listeners be exposed to
-the public internet; it currently implements no authentication whatsoever and is
-unencrypted.
+the public internet; they have no authentication and are unencrypted.
 
-(Roughly, the TCP port is used for streaming data from the master to the
-workers, and the HTTP port for the workers to send data to the main
-synapse process.)
-
-You then create a set of configs for the various worker processes.  These
-should be worker configuration files, and should be stored in a dedicated
-subdirectory, to allow synctl to manipulate them.
-
-Each worker configuration file inherits the configuration of the main homeserver
-configuration file.  You can then override configuration specific to that worker,
-e.g. the HTTP listener that it provides (if any); logging configuration; etc.
-You should minimise the number of overrides though to maintain a usable config.
+You should then create a set of configs for the various worker processes.  Each
+worker configuration file inherits the configuration of the main homeserver
+configuration file.  You can then override configuration specific to that
+worker, e.g. the HTTP listener that it provides (if any); logging
+configuration; etc.  You should minimise the number of overrides though to
+maintain a usable config.
 
 In the config file for each worker, you must specify the type of worker
 application (`worker_app`). The currently available worker applications are
-listed below. You must also specify the replication endpoints that it's talking
-to on the main synapse process.  `worker_replication_host` should specify the
-host of the main synapse, `worker_replication_port` should point to the TCP
+listed below. You must also specify the replication endpoints that it should
+talk to on the main synapse process.  `worker_replication_host` should specify
+the host of the main synapse, `worker_replication_port` should point to the TCP
 replication listener port and `worker_replication_http_port` should point to
 the HTTP replication port.
 
-Currently, the `event_creator` and `federation_reader` workers require specifying
-`worker_replication_http_port`.
+For example:
 
-For instance:
+```yaml
+worker_app: synapse.app.synchrotron
 
-    worker_app: synapse.app.synchrotron
+# The replication listener on the synapse to talk to.
+worker_replication_host: 127.0.0.1
+worker_replication_port: 9092
+worker_replication_http_port: 9093
 
-    # The replication listener on the synapse to talk to.
-    worker_replication_host: 127.0.0.1
-    worker_replication_port: 9092
-    worker_replication_http_port: 9093
+worker_listeners:
+ - type: http
+   port: 8083
+   resources:
+     - names:
+       - client
 
-    worker_listeners:
-     - type: http
-       port: 8083
-       resources:
-         - names:
-           - client
-
-    worker_log_config: /home/matrix/synapse/config/synchrotron_log_config.yaml
+worker_log_config: /home/matrix/synapse/config/synchrotron_log_config.yaml
+```
 
 ...is a full configuration for a synchrotron worker instance, which will expose a
 plain HTTP `/sync` endpoint on port 8083 separately from the `/sync` endpoint provided
@@ -101,6 +104,50 @@ recommend the use of `systemd` where available: for information on setting up
 `systemd` to start synapse workers, see
 [systemd-with-workers](systemd-with-workers). To use `synctl`, see below.
 
+### **Experimental** support for replication over redis
+
+As of Synapse v1.13.0, it is possible to configure Synapse to send replication
+via a [Redis pub/sub channel](https://redis.io/topics/pubsub). This is an
+alternative to direct TCP connections to the master: rather than all the
+workers connecting to the master, all the workers and the master connect to
+Redis, which relays replication commands between processes. This can give a
+significant cpu saving on the master and will be a prerequisite for upcoming
+performance improvements.
+
+Note that this support is currently experimental; you may experience lost
+messages and similar problems! It is strongly recommended that admins setting
+up workers for the first time use direct TCP replication as above.
+
+To configure Synapse to use Redis:
+
+1. Install Redis following the normal procedure for your distribution - for
+   example, on Debian, `apt install redis-server`. (It is safe to use an
+   existing Redis deployment if you have one: we use a pub/sub stream named
+   according to the `server_name` of your synapse server.)
+2. Check Redis is running and accessible: you should be able to `echo PING | nc -q1
+   localhost 6379` and get a response of `+PONG`.
+3. Install the python prerequisites. If you installed synapse into a
+   virtualenv, this can be done with:
+   ```sh
+   pip install matrix-synapse[redis]
+   ```
+   The debian packages from matrix.org already include the required
+   dependencies.
+4. Add config to the shared configuration (`homeserver.yaml`):
+    ```yaml
+    redis:
+      enabled: true
+    ```
+    Optional parameters which can go alongside `enabled` are `host`, `port`,
+    `password`. Normally none of these are required.
+5. Restart master and all workers.
+
+Once redis replication is in use, `worker_replication_port` is redundant and
+can be removed from the worker configuration files. Similarly, the
+configuration for the `listener` for the TCP replication port can be removed
+from the main configuration file. Note that the HTTP replication port is
+still required.
+
 ### Using synctl
 
 If you want to use `synctl` to manage your synapse processes, you will need to

From 20ffaa72098708b125801402c5258f7cc6163c5b Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 14:54:38 +0100
Subject: [PATCH 05/15] 1.13.0rc1

---
 CHANGES.md               | 138 +++++++++++++++++++++++++++++++++++++++
 changelog.d/6446.misc    |   1 -
 changelog.d/6573.bugfix  |   1 -
 changelog.d/6634.bugfix  |   1 -
 changelog.d/6639.bugfix  |   1 -
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 144 files changed, 139 insertions(+), 143 deletions(-)
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 delete mode 100644 changelog.d/7455.bugfix

diff --git a/CHANGES.md b/CHANGES.md
index adb2b3e16..0b49e032d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,141 @@
+Synapse 1.13.0rc1 (2020-05-11)
+==============================
+
+Features
+--------
+
+- Extend the `web_client_location` option to accept an absolute URL to use as a redirect. Adds a warning when running the web client on the same hostname as homeserver. Contributed by Martin Milata. ([\#7006](https://github.com/matrix-org/synapse/issues/7006))
+- Set `Referrer-Policy` header to `no-referrer` on media downloads. ([\#7009](https://github.com/matrix-org/synapse/issues/7009))
+- Add support for running replication over Redis when using workers. ([\#7040](https://github.com/matrix-org/synapse/issues/7040), [\#7325](https://github.com/matrix-org/synapse/issues/7325), [\#7352](https://github.com/matrix-org/synapse/issues/7352), [\#7401](https://github.com/matrix-org/synapse/issues/7401), [\#7427](https://github.com/matrix-org/synapse/issues/7427), [\#7439](https://github.com/matrix-org/synapse/issues/7439), [\#7446](https://github.com/matrix-org/synapse/issues/7446), [\#7450](https://github.com/matrix-org/synapse/issues/7450), [\#7454](https://github.com/matrix-org/synapse/issues/7454))
+- Admin API `POST /_synapse/admin/v1/join/<roomIdOrAlias>` to join users to a room like `auto_join_rooms` for creation of users. ([\#7051](https://github.com/matrix-org/synapse/issues/7051))
+- Add options to prevent users from changing their profile or associated 3PIDs. ([\#7096](https://github.com/matrix-org/synapse/issues/7096))
+- Support SSO in the user interactive authentication workflow. ([\#7102](https://github.com/matrix-org/synapse/issues/7102), [\#7186](https://github.com/matrix-org/synapse/issues/7186), [\#7279](https://github.com/matrix-org/synapse/issues/7279), [\#7343](https://github.com/matrix-org/synapse/issues/7343))
+- Allow server admins to define and enforce a password policy (MSC2000). ([\#7118](https://github.com/matrix-org/synapse/issues/7118))
+- Improve the support for SSO authentication on the login fallback page. ([\#7152](https://github.com/matrix-org/synapse/issues/7152), [\#7235](https://github.com/matrix-org/synapse/issues/7235))
+- Always whitelist the login fallback in the SSO configuration if `public_baseurl` is set. ([\#7153](https://github.com/matrix-org/synapse/issues/7153))
+- Admin users are no longer required to be in a room to create an alias for it. ([\#7191](https://github.com/matrix-org/synapse/issues/7191))
+- Require admin privileges to enable room encryption by default. This does not affect existing rooms. ([\#7230](https://github.com/matrix-org/synapse/issues/7230))
+- Add a config option for specifying the value of the Accept-Language HTTP header when generating URL previews. ([\#7265](https://github.com/matrix-org/synapse/issues/7265))
+- Allow `/requestToken` endpoints to hide the existence (or lack thereof) of 3PID associations on the homeserver. ([\#7315](https://github.com/matrix-org/synapse/issues/7315))
+- Add a configuration setting to tweak the threshold for dummy events. ([\#7422](https://github.com/matrix-org/synapse/issues/7422))
+
+
+Bugfixes
+--------
+
+- Don't attempt to use an invalid sqlite config if no database configuration is provided. Contributed by @nekatak. ([\#6573](https://github.com/matrix-org/synapse/issues/6573))
+- Fix single-sign on with CAS systems: pass the same service URL when requesting the CAS ticket and when calling the `proxyValidate` URL. Contributed by @Naugrimm. ([\#6634](https://github.com/matrix-org/synapse/issues/6634))
+- Fix missing field `default` when fetching user-defined push rules. ([\#6639](https://github.com/matrix-org/synapse/issues/6639))
+- Improve error responses when accessing remote public room lists. ([\#6899](https://github.com/matrix-org/synapse/issues/6899), [\#7368](https://github.com/matrix-org/synapse/issues/7368))
+- Transfer alias mappings on room upgrade. ([\#6946](https://github.com/matrix-org/synapse/issues/6946))
+- Ensure that a user inteactive authentication session is tied to a single request. ([\#7068](https://github.com/matrix-org/synapse/issues/7068), [\#7455](https://github.com/matrix-org/synapse/issues/7455))
+- Fix a bug in the federation API which could cause occasional "Failed to get PDU" errors. ([\#7089](https://github.com/matrix-org/synapse/issues/7089))
+- Return the proper error (M_BAD_ALIAS) when a non-existant canonical alias is provided. ([\#7109](https://github.com/matrix-org/synapse/issues/7109))
+- Fix a bug which meant that groups updates were not correctly replicated between workers. ([\#7117](https://github.com/matrix-org/synapse/issues/7117))
+- Fix starting workers when federation sending not split out. ([\#7133](https://github.com/matrix-org/synapse/issues/7133))
+- Ensure `is_verified` is a boolean in responses to `GET /_matrix/client/r0/room_keys/keys`. Also warn the user if they forgot the `version` query param. ([\#7150](https://github.com/matrix-org/synapse/issues/7150))
+- Fix error page being shown when a custom SAML handler attempted to redirect when processing an auth response. ([\#7151](https://github.com/matrix-org/synapse/issues/7151))
+- Avoid importing `sqlite3` when using the postgres backend. Contributed by David Vo. ([\#7155](https://github.com/matrix-org/synapse/issues/7155))
+- Fix excessive CPU usage by `prune_old_outbound_device_pokes` job. ([\#7159](https://github.com/matrix-org/synapse/issues/7159))
+- Fix a bug which could cause outbound federation traffic to stop working if a client uploaded an incorrect e2e device signature. ([\#7177](https://github.com/matrix-org/synapse/issues/7177))
+- Fix a bug which could cause incorrect 'cyclic dependency' error. ([\#7178](https://github.com/matrix-org/synapse/issues/7178))
+- Fix a bug that could cause a user to be invited to a server notices (aka System Alerts) room without any notice being sent. ([\#7199](https://github.com/matrix-org/synapse/issues/7199))
+- Fix some worker-mode replication handling not being correctly recorded in CPU usage stats. ([\#7203](https://github.com/matrix-org/synapse/issues/7203))
+- Do not allow a deactivated user to login via SSO. ([\#7240](https://github.com/matrix-org/synapse/issues/7240), [\#7259](https://github.com/matrix-org/synapse/issues/7259))
+- Fix --help command-line argument. ([\#7249](https://github.com/matrix-org/synapse/issues/7249))
+- Fix room publish permissions not being checked on room creation. ([\#7260](https://github.com/matrix-org/synapse/issues/7260))
+- Reject unknown session IDs during user interactive authentication instead of silently creating a new session. ([\#7268](https://github.com/matrix-org/synapse/issues/7268))
+- Fix a sql query introduced in Synapse 1.12.0 which could cause large amounts of logging to the postgres slow-query log. ([\#7274](https://github.com/matrix-org/synapse/issues/7274))
+- Persist user interactive authentication sessions across workers and Synapse restarts. ([\#7302](https://github.com/matrix-org/synapse/issues/7302))
+- Fixed backwards compatibility logic of the first value of `trusted_third_party_id_servers` being used for `account_threepid_delegates.email`, which occurs when the former, deprecated option is set and the latter is not. ([\#7316](https://github.com/matrix-org/synapse/issues/7316))
+- Fix a bug where event updates might not be sent over replication to worker processes after the stream falls behind. ([\#7337](https://github.com/matrix-org/synapse/issues/7337), [\#7358](https://github.com/matrix-org/synapse/issues/7358))
+- Fix bad error handling that would cause Synapse to crash if it's provided with a YAML configuration file that's either empty or doesn't parse into a key-value map. ([\#7341](https://github.com/matrix-org/synapse/issues/7341))
+- Fix incorrect metrics reporting for `renew_attestations` background task. ([\#7344](https://github.com/matrix-org/synapse/issues/7344))
+- Prevent non-federating rooms from appearing in responses to federated `POST /publicRoom` requests when a filter was included. ([\#7367](https://github.com/matrix-org/synapse/issues/7367))
+- Fix a bug which would cause the room durectory to be incorrectly populated if Synapse was upgraded directly from v1.2.1 or earlier to v1.4.0 or later. Note that this fix does not apply retrospectively; see the [upgrade notes](UPGRADE.rst#upgrading-to-v1130) for more information. ([\#7387](https://github.com/matrix-org/synapse/issues/7387))
+- Fix bug in `EventContext.deserialize`. ([\#7393](https://github.com/matrix-org/synapse/issues/7393))
+
+
+Improved Documentation
+----------------------
+
+- Update Debian installation instructions to recommend installing the `virtualenv` package instead of `python3-virtualenv`. ([\#6892](https://github.com/matrix-org/synapse/issues/6892))
+- Improve the documentation for database configuration. ([\#6988](https://github.com/matrix-org/synapse/issues/6988))
+- Improve the documentation of application service configuration files. ([\#7091](https://github.com/matrix-org/synapse/issues/7091))
+- Update pre-built package name for FreeBSD. ([\#7107](https://github.com/matrix-org/synapse/issues/7107))
+- Update postgres docs with login troubleshooting information. ([\#7119](https://github.com/matrix-org/synapse/issues/7119))
+- Clean up INSTALL.md a bit. ([\#7141](https://github.com/matrix-org/synapse/issues/7141))
+- Add documentation for running a local CAS server for testing. ([\#7147](https://github.com/matrix-org/synapse/issues/7147))
+- Improve README.md by being explicit about public IP recommendation for TURN relaying. ([\#7167](https://github.com/matrix-org/synapse/issues/7167))
+- Fix a small typo in the `metrics_flags` config option. ([\#7171](https://github.com/matrix-org/synapse/issues/7171))
+- Update the contributed documentation on managing synapse workers with systemd, and bring it into the core distribution. ([\#7234](https://github.com/matrix-org/synapse/issues/7234))
+- Add documentation to the `password_providers` config option. Add known password provider implementations to docs. ([\#7238](https://github.com/matrix-org/synapse/issues/7238), [\#7248](https://github.com/matrix-org/synapse/issues/7248))
+- Modify suggested nginx reverse proxy configuration to match Synapse's default file upload size. Contributed by @ProCycleDev. ([\#7251](https://github.com/matrix-org/synapse/issues/7251))
+- Documentation of media_storage_providers options updated to avoid misunderstandings. Contributed by Tristan Lins. ([\#7272](https://github.com/matrix-org/synapse/issues/7272))
+- Add documentation on monitoring workers with Prometheus. ([\#7357](https://github.com/matrix-org/synapse/issues/7357))
+- Clarify endpoint usage in the users admin api documentation. ([\#7361](https://github.com/matrix-org/synapse/issues/7361))
+
+
+Deprecations and Removals
+-------------------------
+
+- Remove nonfunctional `captcha_bypass_secret` option from `homeserver.yaml`. ([\#7137](https://github.com/matrix-org/synapse/issues/7137))
+
+
+Internal Changes
+----------------
+
+- Add benchmarks for LruCache. ([\#6446](https://github.com/matrix-org/synapse/issues/6446))
+- Return total number of users and profile attributes in admin users endpoint. Contributed by Awesome Technologies Innovationslabor GmbH. ([\#6881](https://github.com/matrix-org/synapse/issues/6881))
+- Change device list streams to have one row per ID. ([\#7010](https://github.com/matrix-org/synapse/issues/7010))
+- Remove concept of a non-limited stream. ([\#7011](https://github.com/matrix-org/synapse/issues/7011))
+- Move catchup of replication streams logic to worker. ([\#7024](https://github.com/matrix-org/synapse/issues/7024), [\#7195](https://github.com/matrix-org/synapse/issues/7195), [\#7226](https://github.com/matrix-org/synapse/issues/7226), [\#7239](https://github.com/matrix-org/synapse/issues/7239), [\#7286](https://github.com/matrix-org/synapse/issues/7286), [\#7290](https://github.com/matrix-org/synapse/issues/7290), [\#7318](https://github.com/matrix-org/synapse/issues/7318), [\#7326](https://github.com/matrix-org/synapse/issues/7326), [\#7378](https://github.com/matrix-org/synapse/issues/7378), [\#7421](https://github.com/matrix-org/synapse/issues/7421))
+- Convert some of synapse.rest.media to async/await. ([\#7110](https://github.com/matrix-org/synapse/issues/7110), [\#7184](https://github.com/matrix-org/synapse/issues/7184), [\#7241](https://github.com/matrix-org/synapse/issues/7241))
+- De-duplicate / remove unused REST code for login and auth. ([\#7115](https://github.com/matrix-org/synapse/issues/7115))
+- Convert `*StreamRow` classes to inner classes. ([\#7116](https://github.com/matrix-org/synapse/issues/7116))
+- Clean up some LoggingContext code. ([\#7120](https://github.com/matrix-org/synapse/issues/7120), [\#7181](https://github.com/matrix-org/synapse/issues/7181), [\#7183](https://github.com/matrix-org/synapse/issues/7183), [\#7408](https://github.com/matrix-org/synapse/issues/7408), [\#7426](https://github.com/matrix-org/synapse/issues/7426))
+- Add explicit `instance_id` for USER_SYNC commands and remove implicit `conn_id` usage. ([\#7128](https://github.com/matrix-org/synapse/issues/7128))
+- Refactored the CAS authentication logic to a separate class. ([\#7136](https://github.com/matrix-org/synapse/issues/7136))
+- Run replication streamers on workers. ([\#7146](https://github.com/matrix-org/synapse/issues/7146))
+- Add tests for outbound device pokes. ([\#7157](https://github.com/matrix-org/synapse/issues/7157))
+- Fix device list update stream ids going backward. ([\#7158](https://github.com/matrix-org/synapse/issues/7158))
+- Use `stream.current_token()` and remove `stream_positions()`. ([\#7172](https://github.com/matrix-org/synapse/issues/7172))
+- Move client command handling out of TCP protocol. ([\#7185](https://github.com/matrix-org/synapse/issues/7185))
+- Move server command handling out of TCP protocol. ([\#7187](https://github.com/matrix-org/synapse/issues/7187))
+- Fix consistency of HTTP status codes reported in log lines. ([\#7188](https://github.com/matrix-org/synapse/issues/7188))
+- Only run one background database update at a time. ([\#7190](https://github.com/matrix-org/synapse/issues/7190))
+- Remove sent outbound device list pokes from the database. ([\#7192](https://github.com/matrix-org/synapse/issues/7192))
+- Add a background database update job to clear out duplicate `device_lists_outbound_pokes`. ([\#7193](https://github.com/matrix-org/synapse/issues/7193))
+- Remove some extraneous debugging log lines. ([\#7207](https://github.com/matrix-org/synapse/issues/7207))
+- Add explicit Python build tooling as dependencies for the snapcraft build. ([\#7213](https://github.com/matrix-org/synapse/issues/7213))
+- Add typing information to federation server code. ([\#7219](https://github.com/matrix-org/synapse/issues/7219))
+- Extend room admin api (`GET /_synapse/admin/v1/rooms`) with additional attributes. ([\#7225](https://github.com/matrix-org/synapse/issues/7225))
+- Unblacklist '/upgrade creates a new room' sytest for workers. ([\#7228](https://github.com/matrix-org/synapse/issues/7228))
+- Remove redundant checks on `daemonize` from synctl. ([\#7233](https://github.com/matrix-org/synapse/issues/7233))
+- Upgrade jQuery to v3.4.1 on fallback login/registration pages. ([\#7236](https://github.com/matrix-org/synapse/issues/7236))
+- Change log line that told user to implement onLogin/onRegister fallback js functions to a warning, instead of an info, so it's more visible. ([\#7237](https://github.com/matrix-org/synapse/issues/7237))
+- Correct the parameters of a test fixture. Contributed by Isaiah Singletary. ([\#7243](https://github.com/matrix-org/synapse/issues/7243))
+- Convert auth handler to async/await. ([\#7261](https://github.com/matrix-org/synapse/issues/7261))
+- Add some unit tests for replication. ([\#7278](https://github.com/matrix-org/synapse/issues/7278))
+- Improve typing annotations in `synapse.replication.tcp.streams.Stream`. ([\#7291](https://github.com/matrix-org/synapse/issues/7291))
+- Reduce log verbosity of url cache cleanup tasks. ([\#7295](https://github.com/matrix-org/synapse/issues/7295))
+- Fix sample SAML Service Provider configuration. Contributed by @frcl. ([\#7300](https://github.com/matrix-org/synapse/issues/7300))
+- Fix StreamChangeCache to work with multiple entities changing on the same stream id. ([\#7303](https://github.com/matrix-org/synapse/issues/7303))
+- Fix an incorrect import in IdentityHandler. ([\#7319](https://github.com/matrix-org/synapse/issues/7319))
+- Reduce logging verbosity for successful federation requests. ([\#7321](https://github.com/matrix-org/synapse/issues/7321))
+- Convert some federation handler code to async/await. ([\#7338](https://github.com/matrix-org/synapse/issues/7338))
+- Fix collation for postgres for unit tests. ([\#7359](https://github.com/matrix-org/synapse/issues/7359))
+- Convert RegistrationWorkerStore.is_server_admin and dependent code to async/await. ([\#7363](https://github.com/matrix-org/synapse/issues/7363))
+- Add an `instance_name` to `RDATA` and `POSITION` replication commands. ([\#7364](https://github.com/matrix-org/synapse/issues/7364))
+- Thread through instance name to replication client. ([\#7369](https://github.com/matrix-org/synapse/issues/7369))
+- Convert synapse.server_notices to async/await. ([\#7394](https://github.com/matrix-org/synapse/issues/7394))
+- Convert synapse.notifier to async/await. ([\#7395](https://github.com/matrix-org/synapse/issues/7395))
+- Fix issues with the Python package manifest. ([\#7404](https://github.com/matrix-org/synapse/issues/7404))
+- Prevent methods in `synapse.handlers.auth` from polling the homeserver config every request. ([\#7420](https://github.com/matrix-org/synapse/issues/7420))
+- Speed up fetching device lists changes when handling `/sync` requests. ([\#7423](https://github.com/matrix-org/synapse/issues/7423))
+- Run group attestation renewal in series rather than parallel for performance. ([\#7442](https://github.com/matrix-org/synapse/issues/7442))
+
+
 Next version
 ============
 
diff --git a/changelog.d/6446.misc b/changelog.d/6446.misc
deleted file mode 100644
index c42df16f1..000000000
--- a/changelog.d/6446.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add benchmarks for LruCache.
diff --git a/changelog.d/6573.bugfix b/changelog.d/6573.bugfix
deleted file mode 100644
index 1bb8014db..000000000
--- a/changelog.d/6573.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Don't attempt to use an invalid sqlite config if no database configuration is provided. Contributed by @nekatak.
diff --git a/changelog.d/6634.bugfix b/changelog.d/6634.bugfix
deleted file mode 100644
index ec48fdc0a..000000000
--- a/changelog.d/6634.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix single-sign on with CAS systems: pass the same service URL when requesting the CAS ticket and when calling the `proxyValidate` URL. Contributed by @Naugrimm.
diff --git a/changelog.d/6639.bugfix b/changelog.d/6639.bugfix
deleted file mode 100644
index c7593a6e8..000000000
--- a/changelog.d/6639.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix missing field `default` when fetching user-defined push rules.
diff --git a/changelog.d/6881.misc b/changelog.d/6881.misc
deleted file mode 100644
index 03b89ccd3..000000000
--- a/changelog.d/6881.misc
+++ /dev/null
@@ -1 +0,0 @@
-Return total number of users and profile attributes in admin users endpoint. Contributed by Awesome Technologies Innovationslabor GmbH.
diff --git a/changelog.d/6892.doc b/changelog.d/6892.doc
deleted file mode 100644
index 0d04cf0bd..000000000
--- a/changelog.d/6892.doc
+++ /dev/null
@@ -1 +0,0 @@
-Update Debian installation instructions to recommend installing the `virtualenv` package instead of `python3-virtualenv`.
\ No newline at end of file
diff --git a/changelog.d/6899.bugfix b/changelog.d/6899.bugfix
deleted file mode 100644
index efa8a40b1..000000000
--- a/changelog.d/6899.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Improve error responses when accessing remote public room lists.
\ No newline at end of file
diff --git a/changelog.d/6946.bugfix b/changelog.d/6946.bugfix
deleted file mode 100644
index a238c83a1..000000000
--- a/changelog.d/6946.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Transfer alias mappings on room upgrade.
\ No newline at end of file
diff --git a/changelog.d/6988.doc b/changelog.d/6988.doc
deleted file mode 100644
index b6f71bb96..000000000
--- a/changelog.d/6988.doc
+++ /dev/null
@@ -1 +0,0 @@
-Improve the documentation for database configuration.
diff --git a/changelog.d/7006.feature b/changelog.d/7006.feature
deleted file mode 100644
index d2ce9dbac..000000000
--- a/changelog.d/7006.feature
+++ /dev/null
@@ -1 +0,0 @@
-Extend the `web_client_location` option to accept an absolute URL to use as a redirect. Adds a warning when running the web client on the same hostname as homeserver. Contributed by Martin Milata.
diff --git a/changelog.d/7009.feature b/changelog.d/7009.feature
deleted file mode 100644
index cd2705d5b..000000000
--- a/changelog.d/7009.feature
+++ /dev/null
@@ -1 +0,0 @@
-Set `Referrer-Policy` header to `no-referrer` on media downloads.
diff --git a/changelog.d/7010.misc b/changelog.d/7010.misc
deleted file mode 100644
index 4ba1f6cdf..000000000
--- a/changelog.d/7010.misc
+++ /dev/null
@@ -1 +0,0 @@
-Change device list streams to have one row per ID.
diff --git a/changelog.d/7011.misc b/changelog.d/7011.misc
deleted file mode 100644
index 41c3b3757..000000000
--- a/changelog.d/7011.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove concept of a non-limited stream.
diff --git a/changelog.d/7024.misc b/changelog.d/7024.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7024.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7040.feature b/changelog.d/7040.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7040.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7051.feature b/changelog.d/7051.feature
deleted file mode 100644
index 3e36a3f65..000000000
--- a/changelog.d/7051.feature
+++ /dev/null
@@ -1 +0,0 @@
-Admin API `POST /_synapse/admin/v1/join/<roomIdOrAlias>` to join users to a room like `auto_join_rooms` for creation of users.
\ No newline at end of file
diff --git a/changelog.d/7068.bugfix b/changelog.d/7068.bugfix
deleted file mode 100644
index d1693a7f2..000000000
--- a/changelog.d/7068.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Ensure that a user inteactive authentication session is tied to a single request.
diff --git a/changelog.d/7089.bugfix b/changelog.d/7089.bugfix
deleted file mode 100644
index f1f440f23..000000000
--- a/changelog.d/7089.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug in the federation API which could cause occasional "Failed to get PDU" errors.
diff --git a/changelog.d/7091.doc b/changelog.d/7091.doc
deleted file mode 100644
index 463536c81..000000000
--- a/changelog.d/7091.doc
+++ /dev/null
@@ -1 +0,0 @@
-Improve the documentation of application service configuration files.
diff --git a/changelog.d/7096.feature b/changelog.d/7096.feature
deleted file mode 100644
index 00f47b2a1..000000000
--- a/changelog.d/7096.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add options to prevent users from changing their profile or associated 3PIDs.
\ No newline at end of file
diff --git a/changelog.d/7102.feature b/changelog.d/7102.feature
deleted file mode 100644
index 01057aa39..000000000
--- a/changelog.d/7102.feature
+++ /dev/null
@@ -1 +0,0 @@
-Support SSO in the user interactive authentication workflow.
diff --git a/changelog.d/7107.doc b/changelog.d/7107.doc
deleted file mode 100644
index f6da32d40..000000000
--- a/changelog.d/7107.doc
+++ /dev/null
@@ -1 +0,0 @@
-Update pre-built package name for FreeBSD.
diff --git a/changelog.d/7109.bugfix b/changelog.d/7109.bugfix
deleted file mode 100644
index 268de9978..000000000
--- a/changelog.d/7109.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Return the proper error (M_BAD_ALIAS) when a non-existant canonical alias is provided.
diff --git a/changelog.d/7110.misc b/changelog.d/7110.misc
deleted file mode 100644
index fac5bc040..000000000
--- a/changelog.d/7110.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert some of synapse.rest.media to async/await.
diff --git a/changelog.d/7115.misc b/changelog.d/7115.misc
deleted file mode 100644
index 7d4a011e3..000000000
--- a/changelog.d/7115.misc
+++ /dev/null
@@ -1 +0,0 @@
-De-duplicate / remove unused REST code for login and auth.
diff --git a/changelog.d/7116.misc b/changelog.d/7116.misc
deleted file mode 100644
index 89d90bd49..000000000
--- a/changelog.d/7116.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert `*StreamRow` classes to inner classes.
diff --git a/changelog.d/7117.bugfix b/changelog.d/7117.bugfix
deleted file mode 100644
index 1896d7ad4..000000000
--- a/changelog.d/7117.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug which meant that groups updates were not correctly replicated between workers.
diff --git a/changelog.d/7118.feature b/changelog.d/7118.feature
deleted file mode 100644
index 5cbfd9816..000000000
--- a/changelog.d/7118.feature
+++ /dev/null
@@ -1 +0,0 @@
-Allow server admins to define and enforce a password policy (MSC2000).
\ No newline at end of file
diff --git a/changelog.d/7119.doc b/changelog.d/7119.doc
deleted file mode 100644
index 05192966c..000000000
--- a/changelog.d/7119.doc
+++ /dev/null
@@ -1 +0,0 @@
-Update postgres docs with login troubleshooting information.
\ No newline at end of file
diff --git a/changelog.d/7120.misc b/changelog.d/7120.misc
deleted file mode 100644
index 731f4dcb5..000000000
--- a/changelog.d/7120.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up some LoggingContext code.
diff --git a/changelog.d/7128.misc b/changelog.d/7128.misc
deleted file mode 100644
index 5703f6d2e..000000000
--- a/changelog.d/7128.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add explicit `instance_id` for USER_SYNC commands and remove implicit `conn_id` usage.
diff --git a/changelog.d/7133.bugfix b/changelog.d/7133.bugfix
deleted file mode 100644
index 61a86fd34..000000000
--- a/changelog.d/7133.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix starting workers when federation sending not split out.
diff --git a/changelog.d/7136.misc b/changelog.d/7136.misc
deleted file mode 100644
index 3f666d25f..000000000
--- a/changelog.d/7136.misc
+++ /dev/null
@@ -1 +0,0 @@
-Refactored the CAS authentication logic to a separate class.
diff --git a/changelog.d/7137.removal b/changelog.d/7137.removal
deleted file mode 100644
index 75266a06b..000000000
--- a/changelog.d/7137.removal
+++ /dev/null
@@ -1 +0,0 @@
-Remove nonfunctional `captcha_bypass_secret` option from `homeserver.yaml`.
\ No newline at end of file
diff --git a/changelog.d/7141.doc b/changelog.d/7141.doc
deleted file mode 100644
index 2fcbd666c..000000000
--- a/changelog.d/7141.doc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up INSTALL.md a bit.
\ No newline at end of file
diff --git a/changelog.d/7146.misc b/changelog.d/7146.misc
deleted file mode 100644
index facde0695..000000000
--- a/changelog.d/7146.misc
+++ /dev/null
@@ -1 +0,0 @@
-Run replication streamers on workers.
diff --git a/changelog.d/7147.doc b/changelog.d/7147.doc
deleted file mode 100644
index 2c855ff5f..000000000
--- a/changelog.d/7147.doc
+++ /dev/null
@@ -1 +0,0 @@
-Add documentation for running a local CAS server for testing.
diff --git a/changelog.d/7150.bugfix b/changelog.d/7150.bugfix
deleted file mode 100644
index 1feb29479..000000000
--- a/changelog.d/7150.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Ensure `is_verified` is a boolean in responses to `GET /_matrix/client/r0/room_keys/keys`. Also warn the user if they forgot the `version` query param.
\ No newline at end of file
diff --git a/changelog.d/7151.bugfix b/changelog.d/7151.bugfix
deleted file mode 100644
index 8aaa2dc65..000000000
--- a/changelog.d/7151.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix error page being shown when a custom SAML handler attempted to redirect when processing an auth response.
diff --git a/changelog.d/7152.feature b/changelog.d/7152.feature
deleted file mode 100644
index fafa79c7e..000000000
--- a/changelog.d/7152.feature
+++ /dev/null
@@ -1 +0,0 @@
-Improve the support for SSO authentication on the login fallback page.
diff --git a/changelog.d/7153.feature b/changelog.d/7153.feature
deleted file mode 100644
index 414ebe1f6..000000000
--- a/changelog.d/7153.feature
+++ /dev/null
@@ -1 +0,0 @@
-Always whitelist the login fallback in the SSO configuration if `public_baseurl` is set.
diff --git a/changelog.d/7155.bugfix b/changelog.d/7155.bugfix
deleted file mode 100644
index 0bf51e7ab..000000000
--- a/changelog.d/7155.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Avoid importing `sqlite3` when using the postgres backend. Contributed by David Vo.
diff --git a/changelog.d/7157.misc b/changelog.d/7157.misc
deleted file mode 100644
index 0eb1128c7..000000000
--- a/changelog.d/7157.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add tests for outbound device pokes.
diff --git a/changelog.d/7158.misc b/changelog.d/7158.misc
deleted file mode 100644
index 269b8daeb..000000000
--- a/changelog.d/7158.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix device list update stream ids going backward.
diff --git a/changelog.d/7159.bugfix b/changelog.d/7159.bugfix
deleted file mode 100644
index 1b341b127..000000000
--- a/changelog.d/7159.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix excessive CPU usage by `prune_old_outbound_device_pokes` job.
diff --git a/changelog.d/7167.doc b/changelog.d/7167.doc
deleted file mode 100644
index a7e7ba9b5..000000000
--- a/changelog.d/7167.doc
+++ /dev/null
@@ -1 +0,0 @@
-Improve README.md by being explicit about public IP recommendation for TURN relaying.
diff --git a/changelog.d/7171.doc b/changelog.d/7171.doc
deleted file mode 100644
index 25a3bd8ac..000000000
--- a/changelog.d/7171.doc
+++ /dev/null
@@ -1 +0,0 @@
-Fix a small typo in the `metrics_flags` config option.
\ No newline at end of file
diff --git a/changelog.d/7172.misc b/changelog.d/7172.misc
deleted file mode 100644
index ffecdf97f..000000000
--- a/changelog.d/7172.misc
+++ /dev/null
@@ -1 +0,0 @@
-Use `stream.current_token()` and remove `stream_positions()`.
diff --git a/changelog.d/7177.bugfix b/changelog.d/7177.bugfix
deleted file mode 100644
index 329a96cb0..000000000
--- a/changelog.d/7177.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug which could cause outbound federation traffic to stop working if a client uploaded an incorrect e2e device signature.
\ No newline at end of file
diff --git a/changelog.d/7178.bugfix b/changelog.d/7178.bugfix
deleted file mode 100644
index 35ea645d7..000000000
--- a/changelog.d/7178.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug which could cause incorrect 'cyclic dependency' error.
diff --git a/changelog.d/7181.misc b/changelog.d/7181.misc
deleted file mode 100644
index 731f4dcb5..000000000
--- a/changelog.d/7181.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up some LoggingContext code.
diff --git a/changelog.d/7183.misc b/changelog.d/7183.misc
deleted file mode 100644
index 731f4dcb5..000000000
--- a/changelog.d/7183.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up some LoggingContext code.
diff --git a/changelog.d/7184.misc b/changelog.d/7184.misc
deleted file mode 100644
index fac5bc040..000000000
--- a/changelog.d/7184.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert some of synapse.rest.media to async/await.
diff --git a/changelog.d/7185.misc b/changelog.d/7185.misc
deleted file mode 100644
index deb9ca702..000000000
--- a/changelog.d/7185.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move client command handling out of TCP protocol.
diff --git a/changelog.d/7186.feature b/changelog.d/7186.feature
deleted file mode 100644
index 01057aa39..000000000
--- a/changelog.d/7186.feature
+++ /dev/null
@@ -1 +0,0 @@
-Support SSO in the user interactive authentication workflow.
diff --git a/changelog.d/7187.misc b/changelog.d/7187.misc
deleted file mode 100644
index 60d68ae87..000000000
--- a/changelog.d/7187.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move server command handling out of TCP protocol.
diff --git a/changelog.d/7188.misc b/changelog.d/7188.misc
deleted file mode 100644
index f72955b95..000000000
--- a/changelog.d/7188.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix consistency of HTTP status codes reported in log lines.
diff --git a/changelog.d/7190.misc b/changelog.d/7190.misc
deleted file mode 100644
index 34348873f..000000000
--- a/changelog.d/7190.misc
+++ /dev/null
@@ -1 +0,0 @@
-Only run one background database update at a time.
diff --git a/changelog.d/7191.feature b/changelog.d/7191.feature
deleted file mode 100644
index 83d5685bb..000000000
--- a/changelog.d/7191.feature
+++ /dev/null
@@ -1 +0,0 @@
-Admin users are no longer required to be in a room to create an alias for it.
diff --git a/changelog.d/7192.misc b/changelog.d/7192.misc
deleted file mode 100644
index e401e3639..000000000
--- a/changelog.d/7192.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove sent outbound device list pokes from the database.
diff --git a/changelog.d/7193.misc b/changelog.d/7193.misc
deleted file mode 100644
index 383a738e6..000000000
--- a/changelog.d/7193.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add a background database update job to clear out duplicate `device_lists_outbound_pokes`.
diff --git a/changelog.d/7195.misc b/changelog.d/7195.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7195.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7199.bugfix b/changelog.d/7199.bugfix
deleted file mode 100644
index b234163ea..000000000
--- a/changelog.d/7199.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug that could cause a user to be invited to a server notices (aka System Alerts) room without any notice being sent.
diff --git a/changelog.d/7203.bugfix b/changelog.d/7203.bugfix
deleted file mode 100644
index 8b383952e..000000000
--- a/changelog.d/7203.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix some worker-mode replication handling not being correctly recorded in CPU usage stats.
diff --git a/changelog.d/7207.misc b/changelog.d/7207.misc
deleted file mode 100644
index 4f9b6a108..000000000
--- a/changelog.d/7207.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove some extraneous debugging log lines.
\ No newline at end of file
diff --git a/changelog.d/7213.misc b/changelog.d/7213.misc
deleted file mode 100644
index 03cbfb5f6..000000000
--- a/changelog.d/7213.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add explicit Python build tooling as dependencies for the snapcraft build.
diff --git a/changelog.d/7219.misc b/changelog.d/7219.misc
deleted file mode 100644
index 4af5da864..000000000
--- a/changelog.d/7219.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add typing information to federation server code.
diff --git a/changelog.d/7225.misc b/changelog.d/7225.misc
deleted file mode 100644
index 375e2a475..000000000
--- a/changelog.d/7225.misc
+++ /dev/null
@@ -1 +0,0 @@
-Extend room admin api (`GET /_synapse/admin/v1/rooms`) with additional attributes.
\ No newline at end of file
diff --git a/changelog.d/7226.misc b/changelog.d/7226.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7226.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7228.misc b/changelog.d/7228.misc
deleted file mode 100644
index 50e206377..000000000
--- a/changelog.d/7228.misc
+++ /dev/null
@@ -1 +0,0 @@
-Unblacklist '/upgrade creates a new room' sytest for workers.
\ No newline at end of file
diff --git a/changelog.d/7230.feature b/changelog.d/7230.feature
deleted file mode 100644
index aab777648..000000000
--- a/changelog.d/7230.feature
+++ /dev/null
@@ -1 +0,0 @@
-Require admin privileges to enable room encryption by default. This does not affect existing rooms.
diff --git a/changelog.d/7233.misc b/changelog.d/7233.misc
deleted file mode 100644
index d9ad58272..000000000
--- a/changelog.d/7233.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove redundant checks on `daemonize` from synctl.
diff --git a/changelog.d/7234.doc b/changelog.d/7234.doc
deleted file mode 100644
index d284f1422..000000000
--- a/changelog.d/7234.doc
+++ /dev/null
@@ -1 +0,0 @@
-Update the contributed documentation on managing synapse workers with systemd, and bring it into the core distribution.
diff --git a/changelog.d/7235.feature b/changelog.d/7235.feature
deleted file mode 100644
index fafa79c7e..000000000
--- a/changelog.d/7235.feature
+++ /dev/null
@@ -1 +0,0 @@
-Improve the support for SSO authentication on the login fallback page.
diff --git a/changelog.d/7236.misc b/changelog.d/7236.misc
deleted file mode 100644
index e4a2702b5..000000000
--- a/changelog.d/7236.misc
+++ /dev/null
@@ -1 +0,0 @@
-Upgrade jQuery to v3.4.1 on fallback login/registration pages.
\ No newline at end of file
diff --git a/changelog.d/7237.misc b/changelog.d/7237.misc
deleted file mode 100644
index 92e67ea31..000000000
--- a/changelog.d/7237.misc
+++ /dev/null
@@ -1 +0,0 @@
-Change log line that told user to implement onLogin/onRegister fallback js functions to a warning, instead of an info, so it's more visible.
\ No newline at end of file
diff --git a/changelog.d/7238.doc b/changelog.d/7238.doc
deleted file mode 100644
index 0e3b4be42..000000000
--- a/changelog.d/7238.doc
+++ /dev/null
@@ -1 +0,0 @@
-Add documentation to the `password_providers` config option. Add known password provider implementations to docs.
\ No newline at end of file
diff --git a/changelog.d/7239.misc b/changelog.d/7239.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7239.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7240.bugfix b/changelog.d/7240.bugfix
deleted file mode 100644
index 83b18d3e1..000000000
--- a/changelog.d/7240.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Do not allow a deactivated user to login via SSO.
diff --git a/changelog.d/7241.misc b/changelog.d/7241.misc
deleted file mode 100644
index fac5bc040..000000000
--- a/changelog.d/7241.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert some of synapse.rest.media to async/await.
diff --git a/changelog.d/7243.misc b/changelog.d/7243.misc
deleted file mode 100644
index a39c257a5..000000000
--- a/changelog.d/7243.misc
+++ /dev/null
@@ -1 +0,0 @@
-Correct the parameters of a test fixture. Contributed by Isaiah Singletary.
diff --git a/changelog.d/7248.doc b/changelog.d/7248.doc
deleted file mode 100644
index 0e3b4be42..000000000
--- a/changelog.d/7248.doc
+++ /dev/null
@@ -1 +0,0 @@
-Add documentation to the `password_providers` config option. Add known password provider implementations to docs.
\ No newline at end of file
diff --git a/changelog.d/7249.bugfix b/changelog.d/7249.bugfix
deleted file mode 100644
index 6ae700d36..000000000
--- a/changelog.d/7249.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix --help command-line argument.
diff --git a/changelog.d/7251.doc b/changelog.d/7251.doc
deleted file mode 100644
index 596a28e65..000000000
--- a/changelog.d/7251.doc
+++ /dev/null
@@ -1 +0,0 @@
-Modify suggested nginx reverse proxy configuration to match Synapse's default file upload size. Contributed by @ProCycleDev.
diff --git a/changelog.d/7259.bugfix b/changelog.d/7259.bugfix
deleted file mode 100644
index 55bb06be8..000000000
--- a/changelog.d/7259.bugfix
+++ /dev/null
@@ -1 +0,0 @@
- Do not allow a deactivated user to login via SSO.
diff --git a/changelog.d/7260.bugfix b/changelog.d/7260.bugfix
deleted file mode 100644
index 9e50b56f2..000000000
--- a/changelog.d/7260.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix room publish permissions not being checked on room creation.
diff --git a/changelog.d/7261.misc b/changelog.d/7261.misc
deleted file mode 100644
index 88165f010..000000000
--- a/changelog.d/7261.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert auth handler to async/await.
diff --git a/changelog.d/7265.feature b/changelog.d/7265.feature
deleted file mode 100644
index 345b63e0b..000000000
--- a/changelog.d/7265.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add a config option for specifying the value of the Accept-Language HTTP header when generating URL previews.
\ No newline at end of file
diff --git a/changelog.d/7268.bugfix b/changelog.d/7268.bugfix
deleted file mode 100644
index ab280da18..000000000
--- a/changelog.d/7268.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Reject unknown session IDs during user interactive authentication instead of silently creating a new session.
diff --git a/changelog.d/7272.doc b/changelog.d/7272.doc
deleted file mode 100644
index 13a1ee340..000000000
--- a/changelog.d/7272.doc
+++ /dev/null
@@ -1 +0,0 @@
-Documentation of media_storage_providers options updated to avoid misunderstandings. Contributed by Tristan Lins.
\ No newline at end of file
diff --git a/changelog.d/7274.bugfix b/changelog.d/7274.bugfix
deleted file mode 100644
index 211a38bef..000000000
--- a/changelog.d/7274.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a sql query introduced in Synapse 1.12.0 which could cause large amounts of logging to the postgres slow-query log.
diff --git a/changelog.d/7278.misc b/changelog.d/7278.misc
deleted file mode 100644
index 8a4c4328f..000000000
--- a/changelog.d/7278.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add some unit tests for replication.
diff --git a/changelog.d/7279.feature b/changelog.d/7279.feature
deleted file mode 100644
index 9aed07547..000000000
--- a/changelog.d/7279.feature
+++ /dev/null
@@ -1 +0,0 @@
- Support SSO in the user interactive authentication workflow.
diff --git a/changelog.d/7286.misc b/changelog.d/7286.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7286.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7290.misc b/changelog.d/7290.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7290.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7291.misc b/changelog.d/7291.misc
deleted file mode 100644
index 02e7ae3fa..000000000
--- a/changelog.d/7291.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve typing annotations in `synapse.replication.tcp.streams.Stream`.
diff --git a/changelog.d/7295.misc b/changelog.d/7295.misc
deleted file mode 100644
index 239195e75..000000000
--- a/changelog.d/7295.misc
+++ /dev/null
@@ -1 +0,0 @@
-Reduce log verbosity of url cache cleanup tasks.
diff --git a/changelog.d/7300.misc b/changelog.d/7300.misc
deleted file mode 100644
index 7b3bc362b..000000000
--- a/changelog.d/7300.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix sample SAML Service Provider configuration. Contributed by @frcl.
diff --git a/changelog.d/7302.bugfix b/changelog.d/7302.bugfix
deleted file mode 100644
index 820646d1f..000000000
--- a/changelog.d/7302.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Persist user interactive authentication sessions across workers and Synapse restarts.
diff --git a/changelog.d/7303.misc b/changelog.d/7303.misc
deleted file mode 100644
index aa89c2b25..000000000
--- a/changelog.d/7303.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix StreamChangeCache to work with multiple entities changing on the same stream id.
diff --git a/changelog.d/7315.feature b/changelog.d/7315.feature
deleted file mode 100644
index ebcb4741b..000000000
--- a/changelog.d/7315.feature
+++ /dev/null
@@ -1 +0,0 @@
-Allow `/requestToken` endpoints to hide the existence (or lack thereof) of 3PID associations on the homeserver.
diff --git a/changelog.d/7316.bugfix b/changelog.d/7316.bugfix
deleted file mode 100644
index 0692696c7..000000000
--- a/changelog.d/7316.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fixed backwards compatibility logic of the first value of `trusted_third_party_id_servers` being used for `account_threepid_delegates.email`, which occurs when the former, deprecated option is set and the latter is not.
\ No newline at end of file
diff --git a/changelog.d/7318.misc b/changelog.d/7318.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7318.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7319.misc b/changelog.d/7319.misc
deleted file mode 100644
index 62ea6b6df..000000000
--- a/changelog.d/7319.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix an incorrect import in IdentityHandler.
\ No newline at end of file
diff --git a/changelog.d/7321.misc b/changelog.d/7321.misc
deleted file mode 100644
index a4b3e67af..000000000
--- a/changelog.d/7321.misc
+++ /dev/null
@@ -1 +0,0 @@
-Reduce logging verbosity for successful federation requests.
diff --git a/changelog.d/7325.feature b/changelog.d/7325.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7325.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7326.misc b/changelog.d/7326.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7326.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7337.bugfix b/changelog.d/7337.bugfix
deleted file mode 100644
index f49c60017..000000000
--- a/changelog.d/7337.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug where event updates might not be sent over replication to worker processes after the stream falls behind.
diff --git a/changelog.d/7338.misc b/changelog.d/7338.misc
deleted file mode 100644
index 7cafd074c..000000000
--- a/changelog.d/7338.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert some federation handler code to async/await.
diff --git a/changelog.d/7341.bugfix b/changelog.d/7341.bugfix
deleted file mode 100644
index 8f0958bcb..000000000
--- a/changelog.d/7341.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix bad error handling that would cause Synapse to crash if it's provided with a YAML configuration file that's either empty or doesn't parse into a key-value map.
diff --git a/changelog.d/7343.feature b/changelog.d/7343.feature
deleted file mode 100644
index 01057aa39..000000000
--- a/changelog.d/7343.feature
+++ /dev/null
@@ -1 +0,0 @@
-Support SSO in the user interactive authentication workflow.
diff --git a/changelog.d/7344.bugfix b/changelog.d/7344.bugfix
deleted file mode 100644
index 8c38f9ef8..000000000
--- a/changelog.d/7344.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix incorrect metrics reporting for `renew_attestations` background task.
diff --git a/changelog.d/7352.feature b/changelog.d/7352.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7352.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7357.doc b/changelog.d/7357.doc
deleted file mode 100644
index a3d5616ad..000000000
--- a/changelog.d/7357.doc
+++ /dev/null
@@ -1 +0,0 @@
-Add documentation on monitoring workers with Prometheus.
diff --git a/changelog.d/7358.bugfix b/changelog.d/7358.bugfix
deleted file mode 100644
index f49c60017..000000000
--- a/changelog.d/7358.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug where event updates might not be sent over replication to worker processes after the stream falls behind.
diff --git a/changelog.d/7359.misc b/changelog.d/7359.misc
deleted file mode 100644
index b99f257d9..000000000
--- a/changelog.d/7359.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix collation for postgres for unit tests.
diff --git a/changelog.d/7361.doc b/changelog.d/7361.doc
deleted file mode 100644
index b35dbc36e..000000000
--- a/changelog.d/7361.doc
+++ /dev/null
@@ -1 +0,0 @@
-Clarify endpoint usage in the users admin api documentation.
\ No newline at end of file
diff --git a/changelog.d/7363.misc b/changelog.d/7363.misc
deleted file mode 100644
index 1e3cddde7..000000000
--- a/changelog.d/7363.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert RegistrationWorkerStore.is_server_admin and dependent code to async/await.
\ No newline at end of file
diff --git a/changelog.d/7364.misc b/changelog.d/7364.misc
deleted file mode 100644
index bb5d727cf..000000000
--- a/changelog.d/7364.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add an `instance_name` to `RDATA` and `POSITION` replication commands.
diff --git a/changelog.d/7367.bugfix b/changelog.d/7367.bugfix
deleted file mode 100644
index 12171d4e1..000000000
--- a/changelog.d/7367.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Prevent non-federating rooms from appearing in responses to federated `POST /publicRoom` requests when a filter was included.
diff --git a/changelog.d/7368.bugfix b/changelog.d/7368.bugfix
deleted file mode 100644
index efa8a40b1..000000000
--- a/changelog.d/7368.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Improve error responses when accessing remote public room lists.
\ No newline at end of file
diff --git a/changelog.d/7369.misc b/changelog.d/7369.misc
deleted file mode 100644
index 060b09c88..000000000
--- a/changelog.d/7369.misc
+++ /dev/null
@@ -1 +0,0 @@
-Thread through instance name to replication client.
diff --git a/changelog.d/7378.misc b/changelog.d/7378.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7378.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7387.bugfix b/changelog.d/7387.bugfix
deleted file mode 100644
index a250517b4..000000000
--- a/changelog.d/7387.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug which would cause the room durectory to be incorrectly populated if Synapse was upgraded directly from v1.2.1 or earlier to v1.4.0 or later. Note that this fix does not apply retrospectively; see the [upgrade notes](UPGRADE.rst#upgrading-to-v1130) for more information.
diff --git a/changelog.d/7393.bugfix b/changelog.d/7393.bugfix
deleted file mode 100644
index 74419af85..000000000
--- a/changelog.d/7393.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix bug in `EventContext.deserialize`.
diff --git a/changelog.d/7394.misc b/changelog.d/7394.misc
deleted file mode 100644
index f1390308b..000000000
--- a/changelog.d/7394.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert synapse.server_notices to async/await.
diff --git a/changelog.d/7395.misc b/changelog.d/7395.misc
deleted file mode 100644
index bc0ad59e2..000000000
--- a/changelog.d/7395.misc
+++ /dev/null
@@ -1 +0,0 @@
-Convert synapse.notifier to async/await.
diff --git a/changelog.d/7401.feature b/changelog.d/7401.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7401.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7404.misc b/changelog.d/7404.misc
deleted file mode 100644
index 9ac17958c..000000000
--- a/changelog.d/7404.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix issues with the Python package manifest.
diff --git a/changelog.d/7408.misc b/changelog.d/7408.misc
deleted file mode 100644
index 731f4dcb5..000000000
--- a/changelog.d/7408.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up some LoggingContext code.
diff --git a/changelog.d/7420.misc b/changelog.d/7420.misc
deleted file mode 100644
index e834a9163..000000000
--- a/changelog.d/7420.misc
+++ /dev/null
@@ -1 +0,0 @@
-Prevent methods in `synapse.handlers.auth` from polling the homeserver config every request.
\ No newline at end of file
diff --git a/changelog.d/7421.misc b/changelog.d/7421.misc
deleted file mode 100644
index 676f28537..000000000
--- a/changelog.d/7421.misc
+++ /dev/null
@@ -1 +0,0 @@
-Move catchup of replication streams logic to worker.
diff --git a/changelog.d/7422.feature b/changelog.d/7422.feature
deleted file mode 100644
index d6d5bb216..000000000
--- a/changelog.d/7422.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add a configuration setting to tweak the threshold for dummy events.
diff --git a/changelog.d/7423.misc b/changelog.d/7423.misc
deleted file mode 100644
index eb1767ac1..000000000
--- a/changelog.d/7423.misc
+++ /dev/null
@@ -1 +0,0 @@
-Speed up fetching device lists changes when handling `/sync` requests.
diff --git a/changelog.d/7426.misc b/changelog.d/7426.misc
deleted file mode 100644
index 731f4dcb5..000000000
--- a/changelog.d/7426.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up some LoggingContext code.
diff --git a/changelog.d/7427.feature b/changelog.d/7427.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7427.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7439.feature b/changelog.d/7439.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7439.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7442.misc b/changelog.d/7442.misc
deleted file mode 100644
index a8fd5ad80..000000000
--- a/changelog.d/7442.misc
+++ /dev/null
@@ -1 +0,0 @@
-Run group attestation renewal in series rather than parallel for performance.
\ No newline at end of file
diff --git a/changelog.d/7446.feature b/changelog.d/7446.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7446.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7450.feature b/changelog.d/7450.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7450.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7454.feature b/changelog.d/7454.feature
deleted file mode 100644
index ce6140fdd..000000000
--- a/changelog.d/7454.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for running replication over Redis when using workers.
diff --git a/changelog.d/7455.bugfix b/changelog.d/7455.bugfix
deleted file mode 100644
index d1693a7f2..000000000
--- a/changelog.d/7455.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Ensure that a user inteactive authentication session is tied to a single request.
diff --git a/synapse/__init__.py b/synapse/__init__.py
index d8d340f42..6cd16a820 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -36,7 +36,7 @@ try:
 except ImportError:
     pass
 
-__version__ = "1.12.4"
+__version__ = "1.13.0rc1"
 
 if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
     # We import here so that we don't have to install a bunch of deps when

From 200ad02624e0013d139955936e0368a102421d93 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 14:56:29 +0100
Subject: [PATCH 06/15] Changelog fixes

---
 CHANGES.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 0b49e032d..04ddf1da2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -10,7 +10,7 @@ Features
 - Admin API `POST /_synapse/admin/v1/join/<roomIdOrAlias>` to join users to a room like `auto_join_rooms` for creation of users. ([\#7051](https://github.com/matrix-org/synapse/issues/7051))
 - Add options to prevent users from changing their profile or associated 3PIDs. ([\#7096](https://github.com/matrix-org/synapse/issues/7096))
 - Support SSO in the user interactive authentication workflow. ([\#7102](https://github.com/matrix-org/synapse/issues/7102), [\#7186](https://github.com/matrix-org/synapse/issues/7186), [\#7279](https://github.com/matrix-org/synapse/issues/7279), [\#7343](https://github.com/matrix-org/synapse/issues/7343))
-- Allow server admins to define and enforce a password policy (MSC2000). ([\#7118](https://github.com/matrix-org/synapse/issues/7118))
+- Allow server admins to define and enforce a password policy ([MSC2000](https://github.com/matrix-org/matrix-doc/issues/2000). ([\#7118](https://github.com/matrix-org/synapse/issues/7118))
 - Improve the support for SSO authentication on the login fallback page. ([\#7152](https://github.com/matrix-org/synapse/issues/7152), [\#7235](https://github.com/matrix-org/synapse/issues/7235))
 - Always whitelist the login fallback in the SSO configuration if `public_baseurl` is set. ([\#7153](https://github.com/matrix-org/synapse/issues/7153))
 - Admin users are no longer required to be in a room to create an alias for it. ([\#7191](https://github.com/matrix-org/synapse/issues/7191))
@@ -30,7 +30,7 @@ Bugfixes
 - Transfer alias mappings on room upgrade. ([\#6946](https://github.com/matrix-org/synapse/issues/6946))
 - Ensure that a user inteactive authentication session is tied to a single request. ([\#7068](https://github.com/matrix-org/synapse/issues/7068), [\#7455](https://github.com/matrix-org/synapse/issues/7455))
 - Fix a bug in the federation API which could cause occasional "Failed to get PDU" errors. ([\#7089](https://github.com/matrix-org/synapse/issues/7089))
-- Return the proper error (M_BAD_ALIAS) when a non-existant canonical alias is provided. ([\#7109](https://github.com/matrix-org/synapse/issues/7109))
+- Return the proper error (`M_BAD_ALIAS`) when a non-existant canonical alias is provided. ([\#7109](https://github.com/matrix-org/synapse/issues/7109))
 - Fix a bug which meant that groups updates were not correctly replicated between workers. ([\#7117](https://github.com/matrix-org/synapse/issues/7117))
 - Fix starting workers when federation sending not split out. ([\#7133](https://github.com/matrix-org/synapse/issues/7133))
 - Ensure `is_verified` is a boolean in responses to `GET /_matrix/client/r0/room_keys/keys`. Also warn the user if they forgot the `version` query param. ([\#7150](https://github.com/matrix-org/synapse/issues/7150))
@@ -45,7 +45,7 @@ Bugfixes
 - Fix --help command-line argument. ([\#7249](https://github.com/matrix-org/synapse/issues/7249))
 - Fix room publish permissions not being checked on room creation. ([\#7260](https://github.com/matrix-org/synapse/issues/7260))
 - Reject unknown session IDs during user interactive authentication instead of silently creating a new session. ([\#7268](https://github.com/matrix-org/synapse/issues/7268))
-- Fix a sql query introduced in Synapse 1.12.0 which could cause large amounts of logging to the postgres slow-query log. ([\#7274](https://github.com/matrix-org/synapse/issues/7274))
+- Fix a SQL query introduced in Synapse 1.12.0 which could cause large amounts of logging to the postgres slow-query log. ([\#7274](https://github.com/matrix-org/synapse/issues/7274))
 - Persist user interactive authentication sessions across workers and Synapse restarts. ([\#7302](https://github.com/matrix-org/synapse/issues/7302))
 - Fixed backwards compatibility logic of the first value of `trusted_third_party_id_servers` being used for `account_threepid_delegates.email`, which occurs when the former, deprecated option is set and the latter is not. ([\#7316](https://github.com/matrix-org/synapse/issues/7316))
 - Fix a bug where event updates might not be sent over replication to worker processes after the stream falls behind. ([\#7337](https://github.com/matrix-org/synapse/issues/7337), [\#7358](https://github.com/matrix-org/synapse/issues/7358))

From 71c930750928998624c13cc40551267f6edb03bc Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 15:05:46 +0100
Subject: [PATCH 07/15] Move next version notes from changelog to upgrade notes

---
 CHANGES.md  | 19 +++++--------------
 UPGRADE.rst | 10 ++++++++++
 2 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 04ddf1da2..fa2be3515 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,7 @@
 Synapse 1.13.0rc1 (2020-05-11)
 ==============================
 
+
 Features
 --------
 
@@ -79,6 +80,10 @@ Improved Documentation
 Deprecations and Removals
 -------------------------
 
+Plugins using the `complete_sso_login` method of `synapse.module_api.ModuleApi`
+should update to using the async/await version `complete_sso_login_async` which
+includes additional checks. The non-async version is considered deprecated.
+
 - Remove nonfunctional `captcha_bypass_secret` option from `homeserver.yaml`. ([\#7137](https://github.com/matrix-org/synapse/issues/7137))
 
 
@@ -136,20 +141,6 @@ Internal Changes
 - Run group attestation renewal in series rather than parallel for performance. ([\#7442](https://github.com/matrix-org/synapse/issues/7442))
 
 
-Next version
-============
-
-* New templates (`sso_auth_confirm.html`, `sso_auth_success.html`, and
- `sso_account_deactivated.html`) were added to Synapse. If your Synapse is
- configured to use SSO and a custom  `sso_redirect_confirm_template_dir`
- configuration then these templates will need to be duplicated into that
- directory.
-
-* Plugins using the `complete_sso_login` method of `synapse.module_api.ModuleApi`
-  should update to using the async/await version `complete_sso_login_async` which
-  includes additional checks. The non-async version is considered deprecated.
-
-
 Synapse 1.12.4 (2020-04-23)
 ===========================
 
diff --git a/UPGRADE.rst b/UPGRADE.rst
index d1408be2a..5a96b3919 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -78,6 +78,7 @@ for example:
 Upgrading to v1.13.0
 ====================
 
+
 Incorrect database migration in old synapse versions
 ----------------------------------------------------
 
@@ -105,6 +106,15 @@ affected can be repaired as follows:
 
 2. Restart synapse.
 
+New Single Sign-on HTML Templates
+---------------------------------
+
+New templates (`sso_auth_confirm.html`, `sso_auth_success.html`, and
+`sso_account_deactivated.html`) were added to Synapse. If your Synapse is
+configured to use SSO and a custom  `sso_redirect_confirm_template_dir`
+configuration then these templates will need to be duplicated into that
+directory.
+
 
 Upgrading to v1.12.0
 ====================

From 1f73d28b6ce4198125656e6e96e88a249aa0593b Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 15:33:53 +0100
Subject: [PATCH 08/15] Provide summary of upgrade issues in changelog. Fix )

---
 CHANGES.md  | 23 ++++++++++++++++++-----
 UPGRADE.rst | 22 +++++++++++++++-------
 2 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index fa2be3515..b0a3c95f1 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,23 @@
 Synapse 1.13.0rc1 (2020-05-11)
 ==============================
 
+This release brings some potential changes necessary for certain
+configurations of Synapse:
+
+* If your Synapse is configured to use SSO and have a custom
+  `sso_redirect_confirm_template_dir` configuration option set, you will need
+  to duplicate the new `sso_auth_confirm.html`, `sso_auth_success.html` and
+  `sso_account_deactivated.html` templates into that directory.
+* Synapse plugins using the `complete_sso_login` method of
+  `synapse.module_api.ModuleApi` should instead switch to the async/await
+  version, `complete_sso_login_async`, which includes additional checks. The
+  former version is now deprecated.
+* A bug was introduced in Synapse 1.4.0 which could cause the room directory
+  to be incomplete or empty if Synapse was upgraded directly from v1.2.1 or
+  earlier, to versions between v1.4.0 and v1.12.x.
+
+Please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes
+and for general upgrade guidance.
 
 Features
 --------
@@ -11,7 +28,7 @@ Features
 - Admin API `POST /_synapse/admin/v1/join/<roomIdOrAlias>` to join users to a room like `auto_join_rooms` for creation of users. ([\#7051](https://github.com/matrix-org/synapse/issues/7051))
 - Add options to prevent users from changing their profile or associated 3PIDs. ([\#7096](https://github.com/matrix-org/synapse/issues/7096))
 - Support SSO in the user interactive authentication workflow. ([\#7102](https://github.com/matrix-org/synapse/issues/7102), [\#7186](https://github.com/matrix-org/synapse/issues/7186), [\#7279](https://github.com/matrix-org/synapse/issues/7279), [\#7343](https://github.com/matrix-org/synapse/issues/7343))
-- Allow server admins to define and enforce a password policy ([MSC2000](https://github.com/matrix-org/matrix-doc/issues/2000). ([\#7118](https://github.com/matrix-org/synapse/issues/7118))
+- Allow server admins to define and enforce a password policy ([MSC2000](https://github.com/matrix-org/matrix-doc/issues/2000)). ([\#7118](https://github.com/matrix-org/synapse/issues/7118))
 - Improve the support for SSO authentication on the login fallback page. ([\#7152](https://github.com/matrix-org/synapse/issues/7152), [\#7235](https://github.com/matrix-org/synapse/issues/7235))
 - Always whitelist the login fallback in the SSO configuration if `public_baseurl` is set. ([\#7153](https://github.com/matrix-org/synapse/issues/7153))
 - Admin users are no longer required to be in a room to create an alias for it. ([\#7191](https://github.com/matrix-org/synapse/issues/7191))
@@ -80,10 +97,6 @@ Improved Documentation
 Deprecations and Removals
 -------------------------
 
-Plugins using the `complete_sso_login` method of `synapse.module_api.ModuleApi`
-should update to using the async/await version `complete_sso_login_async` which
-includes additional checks. The non-async version is considered deprecated.
-
 - Remove nonfunctional `captcha_bypass_secret` option from `homeserver.yaml`. ([\#7137](https://github.com/matrix-org/synapse/issues/7137))
 
 
diff --git a/UPGRADE.rst b/UPGRADE.rst
index 5a96b3919..042b54e37 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -83,8 +83,8 @@ Incorrect database migration in old synapse versions
 ----------------------------------------------------
 
 A bug was introduced in Synapse 1.4.0 which could cause the room directory to
-be incomplete or empty if Synapse was upgraded directly from v1.2.1 or earlier,
-to versions between v1.4.0 and v1.12.x.
+be incomplete or empty if Synapse was upgraded directly from v1.2.1 or
+earlier, to versions between v1.4.0 and v1.12.x.
 
 This will *not* be a problem for Synapse installations which were:
  * created at v1.4.0 or later,
@@ -109,11 +109,19 @@ affected can be repaired as follows:
 New Single Sign-on HTML Templates
 ---------------------------------
 
-New templates (`sso_auth_confirm.html`, `sso_auth_success.html`, and
-`sso_account_deactivated.html`) were added to Synapse. If your Synapse is
-configured to use SSO and a custom  `sso_redirect_confirm_template_dir`
-configuration then these templates will need to be duplicated into that
-directory.
+New templates (``sso_auth_confirm.html``, ``sso_auth_success.html``, and
+``sso_account_deactivated.html``) were added to Synapse. If your Synapse is
+configured to use SSO and a custom  ``sso_redirect_confirm_template_dir``
+configuration then these templates will need to be copied from
+[synapse/res/templates](synapse/res/templates) into that directory.
+
+Synapse SSO Plugins Method Deprecation
+--------------------------------------
+
+Plugins using the ``complete_sso_login`` method of
+``synapse.module_api.ModuleApi`` should update to using the async/await
+version ``complete_sso_login_async`` which includes additional checks. The
+non-async version is considered deprecated.
 
 
 Upgrading to v1.12.0

From 3916c655f8465727ce145b2e3127a384b6053c05 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 15:34:59 +0100
Subject: [PATCH 09/15] Fix upgrade notes link

---
 UPGRADE.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/UPGRADE.rst b/UPGRADE.rst
index 042b54e37..8ec743766 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -113,7 +113,7 @@ New templates (``sso_auth_confirm.html``, ``sso_auth_success.html``, and
 ``sso_account_deactivated.html``) were added to Synapse. If your Synapse is
 configured to use SSO and a custom  ``sso_redirect_confirm_template_dir``
 configuration then these templates will need to be copied from
-[synapse/res/templates](synapse/res/templates) into that directory.
+[synapse/res/templates](./synapse/res/templates) into that directory.
 
 Synapse SSO Plugins Method Deprecation
 --------------------------------------

From b41d7b3969795a01977896b16386c626bd9a434d Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 15:36:32 +0100
Subject: [PATCH 10/15] Absolute URL it is then

---
 UPGRADE.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/UPGRADE.rst b/UPGRADE.rst
index 8ec743766..e7c6a9338 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -113,7 +113,8 @@ New templates (``sso_auth_confirm.html``, ``sso_auth_success.html``, and
 ``sso_account_deactivated.html``) were added to Synapse. If your Synapse is
 configured to use SSO and a custom  ``sso_redirect_confirm_template_dir``
 configuration then these templates will need to be copied from
-[synapse/res/templates](./synapse/res/templates) into that directory.
+[synapse/res/templates](https://github.com/matrix-org/synapse/tree/release-v1.13.0/synapse/res/templates)
+into that directory.
 
 Synapse SSO Plugins Method Deprecation
 --------------------------------------

From c3416c888a02cc1e96980212f3f291df68234c82 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 15:37:51 +0100
Subject: [PATCH 11/15] Oh yeah, RST

---
 UPGRADE.rst | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/UPGRADE.rst b/UPGRADE.rst
index e7c6a9338..6882354c0 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -113,8 +113,7 @@ New templates (``sso_auth_confirm.html``, ``sso_auth_success.html``, and
 ``sso_account_deactivated.html``) were added to Synapse. If your Synapse is
 configured to use SSO and a custom  ``sso_redirect_confirm_template_dir``
 configuration then these templates will need to be copied from
-[synapse/res/templates](https://github.com/matrix-org/synapse/tree/release-v1.13.0/synapse/res/templates)
-into that directory.
+`synapse/res/templates <synapse/res/templates>`_ into that directory.
 
 Synapse SSO Plugins Method Deprecation
 --------------------------------------

From 647a995b96f553b8ce6eefd27149948ec5b64e87 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 15:40:36 +0100
Subject: [PATCH 12/15] Fix changelog typo

---
 CHANGES.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGES.md b/CHANGES.md
index b0a3c95f1..f516dcf0d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -46,7 +46,7 @@ Bugfixes
 - Fix missing field `default` when fetching user-defined push rules. ([\#6639](https://github.com/matrix-org/synapse/issues/6639))
 - Improve error responses when accessing remote public room lists. ([\#6899](https://github.com/matrix-org/synapse/issues/6899), [\#7368](https://github.com/matrix-org/synapse/issues/7368))
 - Transfer alias mappings on room upgrade. ([\#6946](https://github.com/matrix-org/synapse/issues/6946))
-- Ensure that a user inteactive authentication session is tied to a single request. ([\#7068](https://github.com/matrix-org/synapse/issues/7068), [\#7455](https://github.com/matrix-org/synapse/issues/7455))
+- Ensure that a user interactive authentication session is tied to a single request. ([\#7068](https://github.com/matrix-org/synapse/issues/7068), [\#7455](https://github.com/matrix-org/synapse/issues/7455))
 - Fix a bug in the federation API which could cause occasional "Failed to get PDU" errors. ([\#7089](https://github.com/matrix-org/synapse/issues/7089))
 - Return the proper error (`M_BAD_ALIAS`) when a non-existant canonical alias is provided. ([\#7109](https://github.com/matrix-org/synapse/issues/7109))
 - Fix a bug which meant that groups updates were not correctly replicated between workers. ([\#7117](https://github.com/matrix-org/synapse/issues/7117))

From 8cced497640525ff1bed7011509b88306c7e7ea3 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 16:04:00 +0100
Subject: [PATCH 13/15] Put rollback instructions in upgrade notes

---
 UPGRADE.rst | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/UPGRADE.rst b/UPGRADE.rst
index 6882354c0..841ccdb31 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -123,6 +123,25 @@ Plugins using the ``complete_sso_login`` method of
 version ``complete_sso_login_async`` which includes additional checks. The
 non-async version is considered deprecated.
 
+Rolling back to v1.12.4 after a failed upgrade
+----------------------------------------------
+
+v1.13.0 includes a lot of large changes. If something problematic occurs, you
+may want to roll-back to a previous version of Synapse. Because v1.13.0 also
+includes a new database schema version, reverting that version is also required
+alongside the generic rollback instructions mentioned above. In short, to roll
+back to v1.12.4 you need to:
+
+1. Stop the server
+2. Decrease the schema version in the database:
+
+  .. code:: sql
+    
+    UPGRADE schema_version SET version = 57;
+
+3. Downgrade Synapse by following the instructions for your installation method
+   in the "Rolling back to older versions" section above.
+    
 
 Upgrading to v1.12.0
 ====================

From e0caeedab33909e90753e67c227df1b687860fee Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 16:05:23 +0100
Subject: [PATCH 14/15] RST indenting

---
 UPGRADE.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/UPGRADE.rst b/UPGRADE.rst
index 841ccdb31..391fe4062 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -135,9 +135,9 @@ back to v1.12.4 you need to:
 1. Stop the server
 2. Decrease the schema version in the database:
 
-  .. code:: sql
+   .. code:: sql
     
-    UPGRADE schema_version SET version = 57;
+      UPGRADE schema_version SET version = 57;
 
 3. Downgrade Synapse by following the instructions for your installation method
    in the "Rolling back to older versions" section above.

From fa4af2c3af7ecd7bb7b6e35ef4c36fc9064da4c7 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <andrew@amorgan.xyz>
Date: Mon, 11 May 2020 16:08:37 +0100
Subject: [PATCH 15/15] Don't UPGRADE database rows

---
 UPGRADE.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/UPGRADE.rst b/UPGRADE.rst
index 391fe4062..41c47e964 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -137,7 +137,7 @@ back to v1.12.4 you need to:
 
    .. code:: sql
     
-      UPGRADE schema_version SET version = 57;
+      UPDATE schema_version SET version = 57;
 
 3. Downgrade Synapse by following the instructions for your installation method
    in the "Rolling back to older versions" section above.