diff --git a/admin_manual/installation/system_requirements.rst b/admin_manual/installation/system_requirements.rst
index ab7d650ca..3a72aee3b 100644
--- a/admin_manual/installation/system_requirements.rst
+++ b/admin_manual/installation/system_requirements.rst
@@ -34,6 +34,7 @@ For best performance, stability and functionality we have documented some recomm
 | PHP Runtime      | - 8.0 (*deprecated*)                                                  |
 |                  | - 8.1                                                                 |
 |                  | - **8.2** (*recommended*)                                             |
+|                  | - 8.3                                                                 |
 +------------------+-----------------------------------------------------------------------+
 
 See :doc:`source_installation` for minimum PHP-modules and additional software for installing Nextcloud.
diff --git a/admin_manual/release_notes/upgrade_to_27.rst b/admin_manual/release_notes/upgrade_to_27.rst
index b25083ce7..3ce1d4cd4 100644
--- a/admin_manual/release_notes/upgrade_to_27.rst
+++ b/admin_manual/release_notes/upgrade_to_27.rst
@@ -6,7 +6,7 @@ System requirements
 -------------------
 
 * PHP 8.2 is recommended over PHP 8.1.
-* PHP 8.0 is deprecated and will be removed in Nextcloud 28.
+* PHP 8.0 is deprecated and might be removed in Nextcloud 28.
 
 Exposed system address book
 ---------------------------
diff --git a/admin_manual/release_notes/upgrade_to_28.rst b/admin_manual/release_notes/upgrade_to_28.rst
index 89e517804..f777ed924 100644
--- a/admin_manual/release_notes/upgrade_to_28.rst
+++ b/admin_manual/release_notes/upgrade_to_28.rst
@@ -2,4 +2,9 @@
 Upgrade to Nextcloud 28
 =======================
 
-To be documented
\ No newline at end of file
+System requirements
+-------------------
+
+* PHP 8.3 is now supported, but 8.2 is recommended.
+
+To be documented
diff --git a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_28.rst b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_28.rst
index 4ae11ddf9..b2629a7b4 100644
--- a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_28.rst
+++ b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_28.rst
@@ -54,6 +54,11 @@ Removed APIs
 Back-end changes
 ----------------
 
+PHP 8.3
+^^^^^^^
+
+In this release support for PHP 8.3 was added. See release notes from PHP about new deprecations.
+
 Development dependency hell
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^