diff --git a/SETUP/CHANGELOG.md b/SETUP/CHANGELOG.md
index 796738d36..4a8661d76 100644
--- a/SETUP/CHANGELOG.md
+++ b/SETUP/CHANGELOG.md
@@ -7,12 +7,24 @@ see the git history.
 [R202009](https://github.com/DistributedProofreaders/dproofreaders/releases/tag/R202009)
 first before upgrading to R202102 or later releases.**
 
-## R??????
+## R202609
+Scripts supporting this upgrade are in `SETUP/upgrade/25`
 
 ### Notices & Deprecations
 
 This release requires PHP 8.3 or later.
 
+## Changes
+* Updated minimum PHP to 8.3 and upgraded dependencies to match (cpeel)
+* Updated both development and runtime JS dependencies (cpeel)
+* Updated DP Sans Mono font version (lvl)
+* mathjax in Format Preview upgraded to v4 and served locally instead of via
+  CDN (mrducky4)
+* Link to PG's In Progress search added to Create Project (srjfoo)
+* API parameter validation and exception improvements (bpfoley)
+* Extensive typing added to functions and classes (bpfoley)
+* Updated minimum browser versions, see [INSTALL.md](INSTALL.md)
+
 ## R202603
 Scripts supporting this upgrade are in `SETUP/upgrade/24`
 
diff --git a/SETUP/INSTALL.md b/SETUP/INSTALL.md
index 1f5250ee4..00701b768 100644
--- a/SETUP/INSTALL.md
+++ b/SETUP/INSTALL.md
@@ -16,7 +16,8 @@ The following lists supported versions for the four primary middleware
 components.
 
 ### PHP
-PHP version 8.3 is the minimum supported version.
+PHP version 8.3 is the minimum supported version. PHP 8.4 and 8.5 pass CI
+tests and should work but no extensive testing has been done on them.
 
 The following PHP extensions are required. They are listed below with their
 Ubuntu system package names.
diff --git a/SETUP/UPGRADE.md b/SETUP/UPGRADE.md
index fdaa7dd33..75e3f1d1b 100644
--- a/SETUP/UPGRADE.md
+++ b/SETUP/UPGRADE.md
@@ -120,6 +120,8 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202102
 Run the scripts in the following directories in order
@@ -132,6 +134,8 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202109
 Run the scripts in the following directories in order
@@ -143,6 +147,8 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202202
 Run the scripts in the following directories in order
@@ -153,6 +159,8 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202209 or R202303
 Run the scripts in the following directories in order
@@ -162,6 +170,8 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202309
 Run the scripts in the following directories in order
@@ -170,6 +180,8 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202403
 Run the scripts in the following directories in order
@@ -177,17 +189,34 @@ Run the scripts in the following directories in order
 * c/SETUP/upgrade/21/
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202409
 Run the scripts in the following directories in order
 
 * c/SETUP/upgrade/22/
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
 
 ### Upgrading from release R202503
 Run the scripts in the following directories in order
 
 * c/SETUP/upgrade/23/
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
+
+### Upgrading from release R202509
+Run the scripts in the following directories in order
+
+* c/SETUP/upgrade/24/
+* c/SETUP/upgrade/25/
+
+### Upgrading from release R202603
+Run the scripts in the following directories in order
+
+* c/SETUP/upgrade/25/
 
 ## Install the modified `dp.cron`
 Install the modified `dp.cron`.