diff --git a/SQL/mysql.initial.sql b/SQL/mysql.initial.sql
index b0afca75f2..c93e622633 100644
--- a/SQL/mysql.initial.sql
+++ b/SQL/mysql.initial.sql
@@ -177,7 +177,7 @@ CREATE TABLE `identities` (
  `del` tinyint(1) NOT NULL DEFAULT '0',
  `standard` tinyint(1) NOT NULL DEFAULT '0',
  `name` varchar(128) NOT NULL,
- `organization` varchar(128) NOT NULL DEFAULT '',
+ `organization` varchar(128) DEFAULT NULL,
  `email` varchar(128) NOT NULL,
  `reply-to` varchar(128) NOT NULL DEFAULT '',
  `bcc` varchar(128) NOT NULL DEFAULT '',
@@ -272,4 +272,4 @@ CREATE TABLE `system` (
 
 SET FOREIGN_KEY_CHECKS=1;
 
-INSERT INTO `system` (`name`, `value`) VALUES ('roundcube-version', '2025092300');
+INSERT INTO `system` (`name`, `value`) VALUES ('roundcube-version', '2026070500');
diff --git a/SQL/mysql/2026070500.sql b/SQL/mysql/2026070500.sql
new file mode 100644
index 0000000000..0e659e886d
--- /dev/null
+++ b/SQL/mysql/2026070500.sql
@@ -0,0 +1 @@
+ALTER TABLE `identities` MODIFY `organization` varchar(128) DEFAULT NULL;
diff --git a/SQL/postgres.initial.sql b/SQL/postgres.initial.sql
index 4c506efe4f..7ccb8434e5 100644
--- a/SQL/postgres.initial.sql
+++ b/SQL/postgres.initial.sql
@@ -390,4 +390,4 @@ CREATE TABLE "system" (
     value text
 );
 
-INSERT INTO "system" (name, value) VALUES ('roundcube-version', '2025092300');
+INSERT INTO "system" (name, value) VALUES ('roundcube-version', '2026070500');
diff --git a/SQL/postgres/2026070500.sql b/SQL/postgres/2026070500.sql
new file mode 100644
index 0000000000..95cabe2a4c
--- /dev/null
+++ b/SQL/postgres/2026070500.sql
@@ -0,0 +1 @@
+-- MySQL only
diff --git a/SQL/sqlite.initial.sql b/SQL/sqlite.initial.sql
index e6fe2f77f1..d70d0a8cec 100644
--- a/SQL/sqlite.initial.sql
+++ b/SQL/sqlite.initial.sql
@@ -274,4 +274,4 @@ CREATE TABLE system (
   value text NOT NULL
 );
 
-INSERT INTO system (name, value) VALUES ('roundcube-version', '2025092300');
+INSERT INTO system (name, value) VALUES ('roundcube-version', '2026070500');
diff --git a/SQL/sqlite/2026070500.sql b/SQL/sqlite/2026070500.sql
new file mode 100644
index 0000000000..95cabe2a4c
--- /dev/null
+++ b/SQL/sqlite/2026070500.sql
@@ -0,0 +1 @@
+-- MySQL only