diff --git a/sql/base/auth_database.sql b/sql/base/auth_database.sql
index 600bcbd44c..d370e0421b 100644
--- a/sql/base/auth_database.sql
+++ b/sql/base/auth_database.sql
@@ -1568,7 +1568,14 @@ INSERT INTO `build_auth_key` VALUES
 (66709,'Mac','x64','WoWC',0x09FA12BA5EFFAB4991B67C8023859A0F),
 (66709,'Win','A64','WoW',0x57B21A0711347B6C331700CDB99D8062),
 (66709,'Win','x64','WoW',0xA5BE6D5379CADEE2D78ECF1F8D2B655B),
-(66709,'Win','x64','WoWC',0x3099082D2374A9BDBCEF42B00811383A);
+(66709,'Win','x64','WoWC',0x3099082D2374A9BDBCEF42B00811383A),
+(66838,'Mac','A64','WoW',0x0DF087CEC90FD63C141640CDA44BED4D),
+(66838,'Mac','A64','WoWC',0x5DFC3FC183FE0B1643BEEA2C8DD653D0),
+(66838,'Mac','x64','WoW',0x6FBB1E9AE33FF34B1EB26AFD9C8AB9EA),
+(66838,'Mac','x64','WoWC',0xF30391E577B93E4F405C12B7410DE4D2),
+(66838,'Win','A64','WoW',0x0BF2D8325ACDA262E4067CA94E9A74E2),
+(66838,'Win','x64','WoW',0x3311F0FE50F95B1F2FED73D88EBEF674),
+(66838,'Win','x64','WoWC',0x16CB76E27B2953AD7155A9DBE924827F);
 /*!40000 ALTER TABLE `build_auth_key` ENABLE KEYS */;
 UNLOCK TABLES;
 
@@ -2012,7 +2019,8 @@ INSERT INTO `build_info` VALUES
 (66527,12,0,1,NULL),
 (66562,12,0,1,NULL),
 (66666,12,0,1,NULL),
-(66709,12,0,1,NULL);
+(66709,12,0,1,NULL),
+(66838,12,0,1,NULL);
 /*!40000 ALTER TABLE `build_info` ENABLE KEYS */;
 UNLOCK TABLES;
 
@@ -3625,7 +3633,7 @@ CREATE TABLE `realmlist` (
   `timezone` tinyint unsigned NOT NULL DEFAULT '0',
   `allowedSecurityLevel` tinyint unsigned NOT NULL DEFAULT '0',
   `population` float NOT NULL DEFAULT '0',
-  `gamebuild` int unsigned NOT NULL DEFAULT '66709',
+  `gamebuild` int unsigned NOT NULL DEFAULT '66838',
   `Region` tinyint unsigned NOT NULL DEFAULT '1',
   `Battlegroup` tinyint unsigned NOT NULL DEFAULT '1',
   PRIMARY KEY (`id`),
@@ -3640,7 +3648,7 @@ CREATE TABLE `realmlist` (
 LOCK TABLES `realmlist` WRITE;
 /*!40000 ALTER TABLE `realmlist` DISABLE KEYS */;
 INSERT INTO `realmlist` VALUES
-(1,'Trinity','127.0.0.1','127.0.0.1',NULL,NULL,'255.255.255.0',8085,0,0,1,0,0,66709,1,1);
+(1,'Trinity','127.0.0.1','127.0.0.1',NULL,NULL,'255.255.255.0',8085,0,0,1,0,0,66838,1,1);
 /*!40000 ALTER TABLE `realmlist` ENABLE KEYS */;
 UNLOCK TABLES;
 
@@ -4199,7 +4207,8 @@ INSERT INTO `updates` VALUES
 ('2026_03_21_00_auth.sql','6D47EFD7FBCD159F5BC5B5A6020E61824280E92A','RELEASED','2026-03-21 00:08:26',0),
 ('2026_03_25_00_auth.sql','1407469EAE26B180ABA3A3802C429A031B241C67','RELEASED','2026-03-25 09:28:09',0),
 ('2026_03_26_00_auth.sql','85B672D6B69E3AF187F413B8D1788FF948744CDA','RELEASED','2026-03-26 21:31:03',0),
-('2026_03_28_00_auth.sql','510B4485FF9865D7E2F6AEE8DFA8A50285362C8B','RELEASED','2026-03-28 01:05:32',0);
+('2026_03_28_00_auth.sql','510B4485FF9865D7E2F6AEE8DFA8A50285362C8B','RELEASED','2026-03-28 01:05:32',0),
+('2026_04_07_00_auth.sql','AE088A44CB5E1ECE7BC928B5471AD8D523074001','RELEASED','2026-04-07 09:20:28',0);
 /*!40000 ALTER TABLE `updates` ENABLE KEYS */;
 UNLOCK TABLES;
 
diff --git a/sql/updates/auth/master/2026_04_07_00_auth.sql b/sql/updates/auth/master/2026_04_07_00_auth.sql
new file mode 100644
index 0000000000..6d5ba2cbba
--- /dev/null
+++ b/sql/updates/auth/master/2026_04_07_00_auth.sql
@@ -0,0 +1,23 @@
+DELETE FROM `build_info` WHERE `build` IN (66838);
+INSERT INTO `build_info` (`build`,`majorVersion`,`minorVersion`,`bugfixVersion`,`hotfixVersion`) VALUES
+(66838,12,0,1,NULL);
+
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Mac' AND `arch`='A64' AND `type`='WoW';
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Mac' AND `arch`='A64' AND `type`='WoWC';
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Mac' AND `arch`='x64' AND `type`='WoW';
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Mac' AND `arch`='x64' AND `type`='WoWC';
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Win' AND `arch`='A64' AND `type`='WoW';
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Win' AND `arch`='x64' AND `type`='WoW';
+DELETE FROM `build_auth_key` WHERE `build`=66838 AND `platform`='Win' AND `arch`='x64' AND `type`='WoWC';
+INSERT INTO `build_auth_key` (`build`,`platform`,`arch`,`type`,`key`) VALUES
+(66838,'Mac','A64','WoW',0x0DF087CEC90FD63C141640CDA44BED4D),
+(66838,'Mac','A64','WoWC',0x5DFC3FC183FE0B1643BEEA2C8DD653D0),
+(66838,'Mac','x64','WoW',0x6FBB1E9AE33FF34B1EB26AFD9C8AB9EA),
+(66838,'Mac','x64','WoWC',0xF30391E577B93E4F405C12B7410DE4D2),
+(66838,'Win','A64','WoW',0x0BF2D8325ACDA262E4067CA94E9A74E2),
+(66838,'Win','x64','WoW',0x3311F0FE50F95B1F2FED73D88EBEF674),
+(66838,'Win','x64','WoWC',0x16CB76E27B2953AD7155A9DBE924827F);
+
+UPDATE `realmlist` SET `gamebuild`=66838 WHERE `gamebuild`=66709;
+
+ALTER TABLE `realmlist` CHANGE `gamebuild` `gamebuild` int unsigned NOT NULL DEFAULT '66838';