From 1866fb39d7ffc86d7374a9aed916f70a91ec65fa Mon Sep 17 00:00:00 2001
From: Patrick Cloke <clokep@users.noreply.github.com>
Date: Mon, 28 Feb 2022 13:29:09 -0500
Subject: [PATCH] Move experimental support for MSC3440 to /versions. (#12099)

Instead of being part of /capabilities, this matches a change to
MSC3440 to properly use these endpoints.
---
 changelog.d/12099.misc              | 1 +
 synapse/rest/client/capabilities.py | 3 ---
 synapse/rest/client/versions.py     | 2 ++
 3 files changed, 3 insertions(+), 3 deletions(-)
 create mode 100644 changelog.d/12099.misc

diff --git a/changelog.d/12099.misc b/changelog.d/12099.misc
new file mode 100644
index 0000000000..0553825dbc
--- /dev/null
+++ b/changelog.d/12099.misc
@@ -0,0 +1 @@
+Move experimental support for [MSC3440](https://github.com/matrix-org/matrix-doc/pull/3440) to /versions.
diff --git a/synapse/rest/client/capabilities.py b/synapse/rest/client/capabilities.py
index b80fdd3712..4237071c61 100644
--- a/synapse/rest/client/capabilities.py
+++ b/synapse/rest/client/capabilities.py
@@ -72,9 +72,6 @@ class CapabilitiesRestServlet(RestServlet):
                 "org.matrix.msc3244.room_capabilities"
             ] = MSC3244_CAPABILITIES
 
-        if self.config.experimental.msc3440_enabled:
-            response["capabilities"]["io.element.thread"] = {"enabled": True}
-
         if self.config.experimental.msc3720_enabled:
             response["capabilities"]["org.matrix.msc3720.account_status"] = {
                 "enabled": True,
diff --git a/synapse/rest/client/versions.py b/synapse/rest/client/versions.py
index 00f29344a8..2e5d0e4e22 100644
--- a/synapse/rest/client/versions.py
+++ b/synapse/rest/client/versions.py
@@ -99,6 +99,8 @@ class VersionsRestServlet(RestServlet):
                     "org.matrix.msc2716": self.config.experimental.msc2716_enabled,
                     # Adds support for jump to date endpoints (/timestamp_to_event) as per MSC3030
                     "org.matrix.msc3030": self.config.experimental.msc3030_enabled,
+                    # Adds support for thread relations, per MSC3440.
+                    "org.matrix.msc3440": self.config.experimental.msc3440_enabled,
                 },
             },
         )
-- 
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