diff --git a/SSI.php b/SSI.php
index a8c1daef92..2559890792 100644
--- a/SSI.php
+++ b/SSI.php
@@ -18,7 +18,7 @@
 define('SMF', 'SSI');
 define('SMF_VERSION', '2.1.5');
 define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
-define('SMF_SOFTWARE_YEAR', '2024');
+define('SMF_SOFTWARE_YEAR', '2025');
 define('JQUERY_VERSION', '3.6.3');
 define('POSTGRE_TITLE', 'PostgreSQL');
 define('MYSQL_TITLE', 'MySQL');
diff --git a/cron.php b/cron.php
index 04c1e7b364..4e078f3ff3 100644
--- a/cron.php
+++ b/cron.php
@@ -23,7 +23,7 @@
 define('SMF', 'BACKGROUND');
 define('SMF_VERSION', '2.1.5');
 define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
-define('SMF_SOFTWARE_YEAR', '2024');
+define('SMF_SOFTWARE_YEAR', '2025');
 define('FROM_CLI', empty($_SERVER['REQUEST_METHOD']));
 
 define('JQUERY_VERSION', '3.6.3');
diff --git a/index.php b/index.php
index e4d8086acc..eeb1ef17e9 100644
--- a/index.php
+++ b/index.php
@@ -24,7 +24,7 @@
 define('SMF', 1);
 define('SMF_VERSION', '2.1.5');
 define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
-define('SMF_SOFTWARE_YEAR', '2024');
+define('SMF_SOFTWARE_YEAR', '2025');
 
 define('JQUERY_VERSION', '3.6.3');
 define('POSTGRE_TITLE', 'PostgreSQL');
diff --git a/other/install.php b/other/install.php
index 37633dac68..c1cb6e5698 100644
--- a/other/install.php
+++ b/other/install.php
@@ -13,7 +13,7 @@
 
 define('SMF_VERSION', '2.1.5');
 define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
-define('SMF_SOFTWARE_YEAR', '2024');
+define('SMF_SOFTWARE_YEAR', '2025');
 define('DB_SCRIPT_VERSION', '2-1');
 define('SMF_INSTALLING', 1);
 
diff --git a/other/upgrade.php b/other/upgrade.php
index d6154123bb..5f5d557fa4 100644
--- a/other/upgrade.php
+++ b/other/upgrade.php
@@ -14,7 +14,7 @@
 // Version information...
 define('SMF_VERSION', '2.1.5');
 define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
-define('SMF_SOFTWARE_YEAR', '2024');
+define('SMF_SOFTWARE_YEAR', '2025');
 define('SMF_LANG_VERSION', '2.1.5');
 define('SMF_INSTALLING', 1);
 
diff --git a/proxy.php b/proxy.php
index c9dc4f3d8a..496444ace9 100644
--- a/proxy.php
+++ b/proxy.php
@@ -23,7 +23,7 @@
 	define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
 
 if (!defined('SMF_SOFTWARE_YEAR'))
-	define('SMF_SOFTWARE_YEAR', '2024');
+	define('SMF_SOFTWARE_YEAR', '2025');
 
 if (!defined('JQUERY_VERSION'))
 	define('JQUERY_VERSION', '3.6.3');