diff --git a/CHANGELOG b/CHANGELOG
index 96be95f..da23687 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -421,3 +421,12 @@
 * Improve performance after joining a large room when presence is enabled. (#9910, #9916)
 * Support stable identifiers for MSC1772 Spaces. m.space.child events will now be taken into account when populating the experimental spaces summary response. Please see the upgrade notes if you have customised room_invite_state_types in your configuration. (#9915, #9966)
 * Improve performance of backfilling in large rooms. (#9935)
+
+[1.25.0]
+* Update Synapse to 1.35.0
+* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.35.0)
+* Add experimental support to allow a user who could join a restricted room to view it in the spaces summary. (#9922, #10007, #10038)
+* Reduce memory usage when joining very large rooms over federation. (#9958)
+* Add a configuration option which allows enabling opentracing by user id. (#9978)
+* Enable experimental support for MSC2946 (spaces summary API) and MSC3083 (restricted join rules) by default. (#10011)
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index 2b0a35c..fcdcced 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.24.0",
+  "version": "1.25.0",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index 9ac4857..9a4918b 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.34.0</upstream>.
+This app packages Synapse <upstream>1.35.0</upstream>.
 
 **This package only provides the Matrix backend. A variety of clients are available
 [here](https://matrix.org/clients/). Riot is a popular web frontend for Matrix and