diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml
index 4d7e6f3eb5..da10788e96 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -23,29 +23,6 @@ server_name: "SERVERNAME"
#
pid_file: DATADIR/homeserver.pid
-# CPU affinity mask. Setting this restricts the CPUs on which the
-# process will be scheduled. It is represented as a bitmask, with the
-# lowest order bit corresponding to the first logical CPU and the
-# highest order bit corresponding to the last logical CPU. Not all CPUs
-# may exist on a given system but a mask may specify more CPUs than are
-# present.
-#
-# For example:
-# 0x00000001 is processor #0,
-# 0x00000003 is processors #0 and #1,
-# 0xFFFFFFFF is all processors (#0 through #31).
-#
-# Pinning a Python process to a single CPU is desirable, because Python
-# is inherently single-threaded due to the GIL, and can suffer a
-# 30-40% slowdown due to cache blow-out and thread context switching
-# if the scheduler happens to schedule the underlying threads across
-# different cores. See
-# https://www.mirantis.com/blog/improve-performance-python-programs-restricting-single-cpu/.
-#
-# This setting requires the affinity package to be installed!
-#
-#cpu_affinity: 0xFFFFFFFF
-
# The path to the web client which will be served at /_matrix/client/
# if 'webclient' is configured under the 'listeners' configuration.
#
@@ -77,11 +54,15 @@ pid_file: DATADIR/homeserver.pid
#
#require_auth_for_profile_requests: true
-# If set to 'true', requires authentication to access the server's
-# public rooms directory through the client API, and forbids any other
-# homeserver to fetch it via federation. Defaults to 'false'.
+# If set to 'false', requires authentication to access the server's public rooms
+# directory through the client API. Defaults to 'true'.
+#
+#allow_public_rooms_without_auth: false
+
+# If set to 'false', forbids any other homeserver to fetch the server's public
+# rooms directory via federation. Defaults to 'true'.
#
-#restrict_public_rooms_to_local_users: true
+#allow_public_rooms_over_federation: false
# The default room version for newly created rooms.
#
@@ -232,7 +213,7 @@ listeners:
- names: [client, federation]
compress: false
- # example additonal_resources:
+ # example additional_resources:
#
#additional_resources:
# "/_matrix/my/custom/endpoint":
@@ -425,6 +406,13 @@ acme:
#
#domain: matrix.example.com
+ # file to use for the account key. This will be generated if it doesn't
+ # exist.
+ #
+ # If unspecified, we will use CONFDIR/client.key.
+ #
+ account_key_file: DATADIR/acme_account.key
+
# List of allowed TLS fingerprints for this server to publish along
# with the signing keys for this server. Other matrix servers that
# make HTTPS requests to this server will check that the TLS
@@ -1351,3 +1339,16 @@ password_config:
# alias: "*"
# room_id: "*"
# action: allow
+
+
+# Server admins can define a Python module that implements extra rules for
+# allowing or denying incoming events. In order to work, this module needs to
+# override the methods defined in synapse/events/third_party_rules.py.
+#
+# This feature is designed to be used in closed federations only, where each
+# participating server enforces the same rules.
+#
+#third_party_event_rules:
+# module: "my_custom_project.SuperRulesSet"
+# config:
+# example_option: 'things'
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