Merge commit 'd5f7182ba' into anoa/dinsic_release_1_21_x

* commit 'd5f7182ba':
  1.20.0rc5
  1.19.3
  Use _check_sigs_and_hash_and_fetch to validate backfill requests (#8350)

Author: anoadragon453

CHANGES.md

@@ -1,3 +1,34 @@
+Synapse 1.20.0rc5 (2020-09-18)
+==============================
+
+Features
+--------
+
+- Add flags to the `/versions` endpoint that includes whether new rooms default to using E2EE. ([\#8343](https://github.com/matrix-org/synapse/issues/8343))
+
+
+Bugfixes
+--------
+
+- Fix ratelimitng of federation `/send` requests. ([\#8342](https://github.com/matrix-org/synapse/issues/8342))
+- Fix a longstanding bug where back pagination over federation could get stuck if it failed to handle a received event. ([\#8349](https://github.com/matrix-org/synapse/issues/8349))
+
+
+Internal Changes
+----------------
+
+- Blacklist [MSC2753](https://github.com/matrix-org/matrix-doc/pull/2753) SyTests until it is implemented. ([\#8285](https://github.com/matrix-org/synapse/issues/8285))
+
+
+Synapse 1.19.3 (2020-09-18)
+===========================
+
+Bugfixes
+--------
+
+- Partially mitigate bug where newly joined servers couldn't get past events in a room when there is a malformed event. ([\#8350](https://github.com/matrix-org/synapse/issues/8350))
+
+
 Synapse 1.20.0rc4 (2020-09-16)
 ==============================
 

changelog.d/8285.misc

@@ -4,6 +4,12 @@ matrix-synapse-py3 (1.20.0ubuntu1) UNRELEASED; urgency=medium
 
  -- Dexter Chua <[email protected]>  Wed, 26 Aug 2020 12:41:36 +0000
 
+matrix-synapse-py3 (1.19.3) stable; urgency=medium
+
+  * New synapse release 1.19.3.
+
+ -- Synapse Packaging team <[email protected]>  Fri, 18 Sep 2020 14:59:30 +0100
+
 matrix-synapse-py3 (1.19.2) stable; urgency=medium
 
   * New synapse release 1.19.2.

changelog.d/8342.bugfix

@@ -48,7 +48,7 @@
 except ImportError:
     pass
 
-__version__ = "1.20.0rc4"
+__version__ = "1.20.0rc5"
 
 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

changelog.d/8343.feature

@@ -217,11 +217,9 @@ async def backfill(
             for p in transaction_data["pdus"]
         ]
 
-        # FIXME: We should handle signature failures more gracefully.
-        pdus[:] = await make_deferred_yieldable(
-            defer.gatherResults(
-                self._check_sigs_and_hashes(room_version, pdus), consumeErrors=True,
-            ).addErrback(unwrapFirstError)
+        # Check signatures and hash of pdus, removing any from the list that fail checks
+        pdus[:] = await self._check_sigs_and_hash_and_fetch(
+            dest, pdus, outlier=True, room_version=room_version
         )
 
         return pdus