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-rw-r--r--synapse/handlers/__init__.py1
-rw-r--r--synapse/handlers/account.py1
-rw-r--r--synapse/handlers/account_data.py2
-rw-r--r--synapse/handlers/admin.py1
-rw-r--r--synapse/handlers/appservice.py1
-rw-r--r--synapse/handlers/auth.py3
-rw-r--r--synapse/handlers/cas.py1
-rw-r--r--synapse/handlers/deactivate_account.py1
-rw-r--r--synapse/handlers/device.py2
-rw-r--r--synapse/handlers/devicemessage.py1
-rw-r--r--synapse/handlers/directory.py1
-rw-r--r--synapse/handlers/e2e_keys.py2
-rw-r--r--synapse/handlers/e2e_room_keys.py1
-rw-r--r--synapse/handlers/event_auth.py1
-rw-r--r--synapse/handlers/events.py1
-rw-r--r--synapse/handlers/federation.py2
-rw-r--r--synapse/handlers/federation_event.py1
-rw-r--r--synapse/handlers/identity.py2
-rw-r--r--synapse/handlers/initial_sync.py1
-rw-r--r--synapse/handlers/jwt.py1
-rw-r--r--synapse/handlers/message.py2
-rw-r--r--synapse/handlers/oidc.py2
-rw-r--r--synapse/handlers/pagination.py1
-rw-r--r--synapse/handlers/password_policy.py1
-rw-r--r--synapse/handlers/presence.py2
-rw-r--r--synapse/handlers/profile.py1
-rw-r--r--synapse/handlers/push_rules.py1
-rw-r--r--synapse/handlers/read_marker.py1
-rw-r--r--synapse/handlers/receipts.py1
-rw-r--r--synapse/handlers/register.py2
-rw-r--r--synapse/handlers/relations.py1
-rw-r--r--synapse/handlers/room.py1
-rw-r--r--synapse/handlers/room_list.py1
-rw-r--r--synapse/handlers/room_member.py2
-rw-r--r--synapse/handlers/room_member_worker.py1
-rw-r--r--synapse/handlers/room_summary.py1
-rw-r--r--synapse/handlers/saml.py1
-rw-r--r--synapse/handlers/search.py1
-rw-r--r--synapse/handlers/send_email.py1
-rw-r--r--synapse/handlers/sso.py1
-rw-r--r--synapse/handlers/stats.py2
-rw-r--r--synapse/handlers/sync.py1
-rw-r--r--synapse/handlers/typing.py1
-rw-r--r--synapse/handlers/ui_auth/__init__.py1
-rw-r--r--synapse/handlers/ui_auth/checkers.py1
-rw-r--r--synapse/handlers/user_directory.py1
-rw-r--r--synapse/handlers/worker_lock.py1
47 files changed, 60 insertions, 0 deletions
diff --git a/synapse/handlers/__init__.py b/synapse/handlers/__init__.py
index 3d833a2e44..fcd2134c89 100644
--- a/synapse/handlers/__init__.py
+++ b/synapse/handlers/__init__.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/account.py b/synapse/handlers/account.py
index 230262cc33..37cc3d3ff5 100644
--- a/synapse/handlers/account.py
+++ b/synapse/handlers/account.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2022 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/account_data.py b/synapse/handlers/account_data.py
index 49ed2612fe..97a463d8d0 100644
--- a/synapse/handlers/account_data.py
+++ b/synapse/handlers/account_data.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
+# Copyright 2015, 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/admin.py b/synapse/handlers/admin.py
index db80345b94..360614e25b 100644
--- a/synapse/handlers/admin.py
+++ b/synapse/handlers/admin.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py
index 74a4579e3c..4b33e1330d 100644
--- a/synapse/handlers/appservice.py
+++ b/synapse/handlers/appservice.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2015, 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index 8635111694..f233f1b034 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -1,6 +1,9 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 - 2020 The Matrix.org Foundation C.I.C.
+# Copyright 2017 Vector Creations Ltd
+# Copyright 2014 - 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/cas.py b/synapse/handlers/cas.py
index 35a53274d5..153123ee83 100644
--- a/synapse/handlers/cas.py
+++ b/synapse/handlers/cas.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2020 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/deactivate_account.py b/synapse/handlers/deactivate_account.py
index 42df163e1a..de5ed5d5b6 100644
--- a/synapse/handlers/deactivate_account.py
+++ b/synapse/handlers/deactivate_account.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
index a72486620f..9062fac91a 100644
--- a/synapse/handlers/device.py
+++ b/synapse/handlers/device.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019,2020 The Matrix.org Foundation C.I.C.
+# Copyright 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/devicemessage.py b/synapse/handlers/devicemessage.py
index b49b3edef7..2b034dcbb7 100644
--- a/synapse/handlers/devicemessage.py
+++ b/synapse/handlers/devicemessage.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py
index 3b6de9f52d..5f3dc30b63 100644
--- a/synapse/handlers/directory.py
+++ b/synapse/handlers/directory.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py
index c6220a03b3..63e00f102e 100644
--- a/synapse/handlers/e2e_keys.py
+++ b/synapse/handlers/e2e_keys.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 The Matrix.org Foundation C.I.C.
+# Copyright 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/e2e_room_keys.py b/synapse/handlers/e2e_room_keys.py
index 621a999da0..e76a51ba30 100644
--- a/synapse/handlers/e2e_room_keys.py
+++ b/synapse/handlers/e2e_room_keys.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/event_auth.py b/synapse/handlers/event_auth.py
index ee7e016e50..c4dbf22408 100644
--- a/synapse/handlers/event_auth.py
+++ b/synapse/handlers/event_auth.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py
index 36404d9c78..c3fee74a98 100644
--- a/synapse/handlers/events.py
+++ b/synapse/handlers/events.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 50065c3584..2b7aad5b58 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2020 Sorunome
+# Copyright 2014-2022 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/federation_event.py b/synapse/handlers/federation_event.py
index 12837429b9..bde45308d4 100644
--- a/synapse/handlers/federation_event.py
+++ b/synapse/handlers/federation_event.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/identity.py b/synapse/handlers/identity.py
index b4ef2b235c..cb31d65aa9 100644
--- a/synapse/handlers/identity.py
+++ b/synapse/handlers/identity.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2017 Vector Creations Ltd
+# Copyright 2015, 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/initial_sync.py b/synapse/handlers/initial_sync.py
index e6abec1fbe..bcc5b285ac 100644
--- a/synapse/handlers/initial_sync.py
+++ b/synapse/handlers/initial_sync.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/jwt.py b/synapse/handlers/jwt.py
index 8dc2e56bef..5fa7a305ad 100644
--- a/synapse/handlers/jwt.py
+++ b/synapse/handlers/jwt.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2023 Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 862151ee3d..7e5bb97f2a 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019-2020 The Matrix.org Foundation C.I.C.
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/oidc.py b/synapse/handlers/oidc.py
index c048594fa9..fe13d82b66 100644
--- a/synapse/handlers/oidc.py
+++ b/synapse/handlers/oidc.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
+# Copyright 2020 Quentin Gliech
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py
index 3ee83c282b..cd3a9088cd 100644
--- a/synapse/handlers/pagination.py
+++ b/synapse/handlers/pagination.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014 - 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/password_policy.py b/synapse/handlers/password_policy.py
index cfa87d5c9b..454afbd96e 100644
--- a/synapse/handlers/password_policy.py
+++ b/synapse/handlers/password_policy.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index 66176cd011..21d3c71d8e 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2020 The Matrix.org Foundation C.I.C.
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py
index 3adee8869d..279d393a5a 100644
--- a/synapse/handlers/profile.py
+++ b/synapse/handlers/profile.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/push_rules.py b/synapse/handlers/push_rules.py
index 62deb24ab4..4ef6a04c51 100644
--- a/synapse/handlers/push_rules.py
+++ b/synapse/handlers/push_rules.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2022 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/read_marker.py b/synapse/handlers/read_marker.py
index 0aa4f53a5d..135a662267 100644
--- a/synapse/handlers/read_marker.py
+++ b/synapse/handlers/read_marker.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2017 Vector Creations Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/receipts.py b/synapse/handlers/receipts.py
index ba20fa6bbd..8674a8fcdd 100644
--- a/synapse/handlers/receipts.py
+++ b/synapse/handlers/receipts.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2015, 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index bc034fa0d6..e48e70db04 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
+# Copyright 2014 - 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/relations.py b/synapse/handlers/relations.py
index 642f7acf97..828a4b4cbd 100644
--- a/synapse/handlers/relations.py
+++ b/synapse/handlers/relations.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index 84a11a3010..6b116dce8c 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2016-2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index 5bad133f6b..07eac71e2a 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014 - 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index 23dbf515dd..d238c40bcf 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2020 Sorunome
+# Copyright 2016-2020 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/room_member_worker.py b/synapse/handlers/room_member_worker.py
index d983df5a46..0616a9864d 100644
--- a/synapse/handlers/room_member_worker.py
+++ b/synapse/handlers/room_member_worker.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2018-2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/room_summary.py b/synapse/handlers/room_summary.py
index 78bcac1429..720459f1e7 100644
--- a/synapse/handlers/room_summary.py
+++ b/synapse/handlers/room_summary.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/saml.py b/synapse/handlers/saml.py
index e765a9640d..8ebd3d4ff9 100644
--- a/synapse/handlers/saml.py
+++ b/synapse/handlers/saml.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/search.py b/synapse/handlers/search.py
index e54fd5779b..19c5a2f257 100644
--- a/synapse/handlers/search.py
+++ b/synapse/handlers/search.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2015, 2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/send_email.py b/synapse/handlers/send_email.py
index 2f62b6e578..70cdb0721c 100644
--- a/synapse/handlers/send_email.py
+++ b/synapse/handlers/send_email.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2021 The Matrix.org C.I.C. Foundation
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/sso.py b/synapse/handlers/sso.py
index 975b456175..437cb5509c 100644
--- a/synapse/handlers/sso.py
+++ b/synapse/handlers/sso.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2020 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/stats.py b/synapse/handlers/stats.py
index ddf21f3645..1c94f3ca46 100644
--- a/synapse/handlers/stats.py
+++ b/synapse/handlers/stats.py
@@ -1,6 +1,8 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2020 Sorunome
+# Copyright 2018-2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 2e10035772..9122a79b4c 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2015-2021 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/typing.py b/synapse/handlers/typing.py
index fb0286db8e..7619d91c98 100644
--- a/synapse/handlers/typing.py
+++ b/synapse/handlers/typing.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2014-2016 OpenMarket Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/ui_auth/__init__.py b/synapse/handlers/ui_auth/__init__.py
index 690a7ca31a..3aca91d48d 100644
--- a/synapse/handlers/ui_auth/__init__.py
+++ b/synapse/handlers/ui_auth/__init__.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/ui_auth/checkers.py b/synapse/handlers/ui_auth/checkers.py
index 7ac291c941..32dca8c43b 100644
--- a/synapse/handlers/ui_auth/checkers.py
+++ b/synapse/handlers/ui_auth/checkers.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2019 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/user_directory.py b/synapse/handlers/user_directory.py
index 5a98c2de0c..a343637b82 100644
--- a/synapse/handlers/user_directory.py
+++ b/synapse/handlers/user_directory.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2017 Vector Creations Ltd
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/synapse/handlers/worker_lock.py b/synapse/handlers/worker_lock.py
index b63416397b..a870fd1124 100644
--- a/synapse/handlers/worker_lock.py
+++ b/synapse/handlers/worker_lock.py
@@ -1,6 +1,7 @@
 #
 # This file is licensed under the Affero General Public License (AGPL) version 3.
 #
+# Copyright 2023 The Matrix.org Foundation C.I.C.
 # Copyright (C) 2023 New Vector, Ltd
 #
 # This program is free software: you can redistribute it and/or modify