diff --git a/CHANGELOG b/CHANGELOG
index ce4f11e729f..77360fede51 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+# 3.10.1 (2024-XX-XX)
+
+ * n/a
+
 # 3.10.0 (2024-05-11)
 
  * Make `CoreExtension::formatDate`, `CoreExtension::convertDate`, and
diff --git a/src/Environment.php b/src/Environment.php
index 7a2bd01d969..10d2cdd9bc9 100644
--- a/src/Environment.php
+++ b/src/Environment.php
@@ -43,12 +43,12 @@
  */
 class Environment
 {
-    public const VERSION = '3.10.0';
-    public const VERSION_ID = 301000;
+    public const VERSION = '3.10.1-DEV';
+    public const VERSION_ID = 301001;
     public const MAJOR_VERSION = 3;
     public const MINOR_VERSION = 10;
-    public const RELEASE_VERSION = 0;
-    public const EXTRA_VERSION = '';
+    public const RELEASE_VERSION = 1;
+    public const EXTRA_VERSION = 'DEV';
 
     private $charset;
     private $loader;