diff --git a/.github/workflows/release-scheduler.yml b/.github/workflows/release-scheduler.yml
index f7e61e02..8f535170 100644
--- a/.github/workflows/release-scheduler.yml
+++ b/.github/workflows/release-scheduler.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         # List of active maintenance branches.
-        branch: [ main, 1.2.x ]
+        branch: [ main, 1.2.x, 1.3.x ]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
diff --git a/git/hooks/prepare-forward-merge b/git/hooks/prepare-forward-merge
index 3d3ad365..541a310d 100755
--- a/git/hooks/prepare-forward-merge
+++ b/git/hooks/prepare-forward-merge
@@ -4,7 +4,7 @@ require 'net/http'
 require 'yaml'
 require 'logger'
 
-$main_branch = "1.3.x"
+$main_branch = "1.4.x"
 
 $log = Logger.new(STDOUT)
 $log.level = Logger::WARN
diff --git a/gradle.properties b/gradle.properties
index b7c4f5c4..829a01b3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-version=1.3.2-SNAPSHOT
+version=1.4.0-SNAPSHOT
 org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true
 org.gradle.caching=true
diff --git a/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/util/SpringAuthorizationServerVersion.java b/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/util/SpringAuthorizationServerVersion.java
index a85b3b6d..04f7ae3c 100644
--- a/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/util/SpringAuthorizationServerVersion.java
+++ b/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/util/SpringAuthorizationServerVersion.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2023 the original author or authors.
+ * Copyright 2020-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,7 +25,7 @@ public final class SpringAuthorizationServerVersion {
 
 	private static final int MAJOR = 1;
 
-	private static final int MINOR = 3;
+	private static final int MINOR = 4;
 
 	private static final int PATCH = 0;