diff --git a/CHANGES.md b/CHANGES.md
index c2577085..b6584143 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -5,6 +5,8 @@
 ### Bug fixes
  - Fixed an issue which could cause Dendrite to become unresponsive for minutes at a time. (contributed by [viviicat](https://github.com/viviicat))
  - Fixed an issue which prevented joining v12 rooms in some circumstances.
+ - Fixed an issue which prevented sending invites to v12 rooms.
+ - Fixed an issue which prevented some clients from syncing v12 rooms.
  - Fixed an issue where a single badly formed PDU would block entire transactions of PDUs being processed. See https://github.com/element-hq/synapse/issues/7543 for the related issue on Synapse.
 
 ## Dendrite 0.15.0 (2025-08-12)
diff --git a/federationapi/internal/perform.go b/federationapi/internal/perform.go
index 7a532087..8797d5d1 100644
--- a/federationapi/internal/perform.go
+++ b/federationapi/internal/perform.go
@@ -575,7 +575,6 @@ func (r *FederationInternalAPI) SendInvite(
 		"room_version": event.Version(),
 		"destination":  destination,
 	}).Info("Sending invite")
-	logrus.Infof("invite event json %s", string(event.JSON()))
 
 	inviteReq, err := fclient.NewInviteV2Request(event, strippedState)
 	if err != nil {
diff --git a/go.mod b/go.mod
index e6847a1c..05ed6356 100644
--- a/go.mod
+++ b/go.mod
@@ -25,7 +25,7 @@ require (
 	github.com/matrix-org/dugong v0.0.0-20210921133753-66e6b1c67e2e
 	github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91
 	github.com/matrix-org/gomatrix v0.0.0-20220926102614-ceba4d9f7530
-	github.com/matrix-org/gomatrixserverlib v0.0.0-20250813144341-908a63a3eeea
+	github.com/matrix-org/gomatrixserverlib v0.0.0-20250813150445-9f5070a65744
 	github.com/matrix-org/pinecone v0.11.1-0.20230810010612-ea4c33717fd7
 	github.com/matrix-org/util v0.0.0-20221111132719-399730281e66
 	github.com/mattn/go-sqlite3 v1.14.28
diff --git a/go.sum b/go.sum
index 6375c9a6..1e393896 100644
--- a/go.sum
+++ b/go.sum
@@ -237,10 +237,8 @@ github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91 h1:s7fexw
 github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91/go.mod h1:e+cg2q7C7yE5QnAXgzo512tgFh1RbQLC0+jozuegKgo=
 github.com/matrix-org/gomatrix v0.0.0-20220926102614-ceba4d9f7530 h1:kHKxCOLcHH8r4Fzarl4+Y3K5hjothkVW5z7T1dUM11U=
 github.com/matrix-org/gomatrix v0.0.0-20220926102614-ceba4d9f7530/go.mod h1:/gBX06Kw0exX1HrwmoBibFA98yBk/jxKpGVeyQbff+s=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20250813131115-3c641bb19714 h1:AmcvbiZLBWPTAy9d/SitZvbDPTDS6vSdJk+wabfTGgE=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20250813131115-3c641bb19714/go.mod h1:b6KVfDjXjA5Q7vhpOaMqIhFYvu5BuFVZixlNeTV/CLc=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20250813144341-908a63a3eeea h1:FSc9Ik147BXMW+P8RDBWBYNKdGziTO5Vm5dZlwlKX0k=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20250813144341-908a63a3eeea/go.mod h1:b6KVfDjXjA5Q7vhpOaMqIhFYvu5BuFVZixlNeTV/CLc=
+github.com/matrix-org/gomatrixserverlib v0.0.0-20250813150445-9f5070a65744 h1:5GvC2FD9O/PhuyY95iJQdNYHbDioEhMWdeMP9maDUL8=
+github.com/matrix-org/gomatrixserverlib v0.0.0-20250813150445-9f5070a65744/go.mod h1:b6KVfDjXjA5Q7vhpOaMqIhFYvu5BuFVZixlNeTV/CLc=
 github.com/matrix-org/pinecone v0.11.1-0.20230810010612-ea4c33717fd7 h1:6t8kJr8i1/1I5nNttw6nn1ryQJgzVlBmSGgPiiaTdw4=
 github.com/matrix-org/pinecone v0.11.1-0.20230810010612-ea4c33717fd7/go.mod h1:ReWMS/LoVnOiRAdq9sNUC2NZnd1mZkMNB52QhpTRWjg=
 github.com/matrix-org/util v0.0.0-20221111132719-399730281e66 h1:6z4KxomXSIGWqhHcfzExgkH3Z3UkIXry4ibJS4Aqz2Y=