diff --git a/admin_manual/installation/system_requirements.rst b/admin_manual/installation/system_requirements.rst
index 89bbd452a..26a553e95 100644
--- a/admin_manual/installation/system_requirements.rst
+++ b/admin_manual/installation/system_requirements.rst
@@ -36,6 +36,7 @@ For best performance, stability and functionality we have documented some recomm
 | PHP Runtime      | - 8.2 (*deprecated*)                                                  |
 |                  | - 8.3                                                                 |
 |                  | - **8.4** (*recommended*)                                             |
+|                  | - 8.5                                                                 |
 +------------------+-----------------------------------------------------------------------+
 
 See :doc:`source_installation` for minimum PHP-modules and additional software for installing Nextcloud.
diff --git a/admin_manual/release_notes/upgrade_to_33.rst b/admin_manual/release_notes/upgrade_to_33.rst
index cdc329b64..428c10f4c 100644
--- a/admin_manual/release_notes/upgrade_to_33.rst
+++ b/admin_manual/release_notes/upgrade_to_33.rst
@@ -5,6 +5,7 @@ Upgrade to Nextcloud 33
 System requirements
 -------------------
 
+* PHP 8.5 is now supported.
 * PHP 8.2 is now deprecated but still supported.
 * PHP 8.1 is no longer supported.
 * Oracle 11g is no longer supported.
diff --git a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst
index fb9c6f400..d9a607255 100644
--- a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst
+++ b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_33.rst
@@ -48,6 +48,11 @@ Removed APIs
 Back-end changes
 ----------------
 
+Support for PHP 8.5 added
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+See below section for option code changes in your app and dependency management
+
 Support for PHP 8.1 removed
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -58,7 +63,7 @@ In this release support for PHP 8.1 was removed. Follow the steps below to make
 .. code-block:: xml
 
   <dependencies>
-    <php min-version="8.2" max-version="8.4" />
+    <php min-version="8.2" max-version="8.5" />
     <nextcloud min-version="31" max-version="33" />
   </dependencies>
 
@@ -69,11 +74,11 @@ In this release support for PHP 8.1 was removed. Follow the steps below to make
 
   {
     "require": {
-      "php": ">=8.2 <=8.4"
+      "php": ">=8.2 <=8.5"
     }
   }
 
-3. If you have :ref:`continuous integration <app-ci>` set up, remove PHP 8.1 from the matrices of tests and linters.
+3. If you have :ref:`continuous integration <app-ci>` set up, remove PHP 8.1 and add PHP 8.5 from the matrices of tests and linters.
 
 Default user agent for outgoing requests changed
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^