From cb209638ea8f5ad1ea069e850d295fdadf198e68 Mon Sep 17 00:00:00 2001
From: "Olivier Wilkinson (reivilibre)" <oliverw@matrix.org>
Date: Tue, 2 Aug 2022 11:10:26 +0100
Subject: [PATCH] Add upgrade notes

---
 docs/upgrade.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/docs/upgrade.md b/docs/upgrade.md
index 73ed209975..47a74b67de 100644
--- a/docs/upgrade.md
+++ b/docs/upgrade.md
@@ -91,6 +91,16 @@ process, for example:
 
 # Upgrading to v1.64.0
 
+## Deprecation of the ability to delegate e-mail verification to identity servers
+
+Synapse v1.66.0 will remove the ability to delegate the tasks of verifying email address ownership, and password reset confirmation, to an identity server.
+
+If you require your homeserver to verify e-mail addresses or to support password resets via e-mail, please configure your homeserver with SMTP access so that it can send e-mails on its own behalf.
+[Consult the configuration documentation for more information.](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#email)
+
+The option that will be removed is `account_threepid_delegates.email`.
+
+
 ## Changes to the event replication streams
 
 Synapse now includes a flag indicating if an event is an outlier when
-- 
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