Index: src/wp-includes/update.php
===================================================================
--- src/wp-includes/update.php	(revision 36179)
+++ src/wp-includes/update.php	(working copy)
@@ -635,44 +641,30 @@ function _maybe_update_themes() {
 
 /**
  * Schedule core, theme, and plugin update checks.
  *
  * @since 3.1.0
  */
 function wp_schedule_update_checks() {
 	if ( ! wp_next_scheduled( 'wp_version_check' ) && ! wp_installing() )
 		wp_schedule_event(time(), 'twicedaily', 'wp_version_check');
 
 	if ( ! wp_next_scheduled( 'wp_update_plugins' ) && ! wp_installing() )
 		wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');
 
 	if ( ! wp_next_scheduled( 'wp_update_themes' ) && ! wp_installing() )
 		wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');
-
-	if ( ! wp_next_scheduled( 'wp_maybe_auto_update' ) && ! wp_installing() ) {
-		// Schedule auto updates for 7 a.m. and 7 p.m. in the timezone of the site.
-		$next = strtotime( 'today 7am' );
-		$now = time();
-		// Find the next instance of 7 a.m. or 7 p.m., but skip it if it is within 3 hours from now.
-		while ( ( $now + 3 * HOUR_IN_SECONDS ) > $next ) {
-			$next += 12 * HOUR_IN_SECONDS;
-		}
-		$next = $next - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS;
-		// Add a random number of minutes, so we don't have all sites trying to update exactly on the hour
-		$next = $next + rand( 0, 59 ) * MINUTE_IN_SECONDS;
-		wp_schedule_event( $next, 'twicedaily', 'wp_maybe_auto_update' );
-	}
 }
 
 /**
  * Clear existing update caches for plugins, themes, and core.
  *
  * @since 4.1.0
  */
 function wp_clean_update_cache() {
 	if ( function_exists( 'wp_clean_plugins_cache' ) ) {
 		wp_clean_plugins_cache();
 	} else {
 		delete_site_transient( 'update_plugins' );
 	}
 	wp_clean_themes_cache();
 	delete_site_transient( 'update_core' );
Index: src/wp-admin/includes/upgrade.php
===================================================================
--- src/wp-admin/includes/upgrade.php	(revision 36179)
+++ src/wp-admin/includes/upgrade.php	(working copy)
@@ -537,30 +537,33 @@ function upgrade_all() {
 	if ( $wp_current_db_version < 26691 )
 		upgrade_380();
 
 	if ( $wp_current_db_version < 29630 )
 		upgrade_400();
 
 	if ( $wp_current_db_version < 33055 )
 		upgrade_430();
 
 	if ( $wp_current_db_version < 33056 )
 		upgrade_431();
 
 	if ( $wp_current_db_version < 35700 )
 		upgrade_440();
 
+	if ( $wp_current_db_version < 35701 )
+		upgrade_450();
+
 	maybe_disable_link_manager();
 
 	maybe_disable_automattic_widgets();
 
 	update_option( 'db_version', $wp_db_version );
 	update_option( 'db_upgraded', true );
 }
 
 /**
  * Execute changes made in WordPress 1.0.
  *
  * @ignore
  * @since 1.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
@@ -1648,30 +1651,44 @@ function upgrade_440() {
 
 	if ( $wp_current_db_version < 34030 ) {
 		$wpdb->query( "ALTER TABLE {$wpdb->options} MODIFY option_name VARCHAR(191)" );
 	}
 
 	// Remove the unused 'add_users' role.
 	$roles = wp_roles();
 	foreach ( $roles->role_objects as $role ) {
 		if ( $role->has_cap( 'add_users' ) ) {
 			$role->remove_cap( 'add_users' );
 		}
 	}
 }
 
 /**
+ * Execute changes made in WordPress 4.5.0
+ *
+ * @ignore
+ * @since 4.5.0
+ *
+ * @global int $wp_current_db_version
+ */
+function upgrade_450() {
+	global $wp_current_db_version;
+	if ( $wp_current_db_version < 35701 )
+		wp_clear_scheduled_hook( 'wp_maybe_auto_update' );
+}
+
+/**
  * Executes network-level upgrade routines.
  *
  * @since 3.0.0
  *
  * @global int   $wp_current_db_version
  * @global wpdb  $wpdb
  */
 function upgrade_network() {
 	global $wp_current_db_version, $wpdb;
 
 	// Always.
 	if ( is_main_network() ) {
 		/*
 		 * Deletes all expired transients. The multi-table delete syntax is used
 		 * to delete the transient record from table a, and the corresponding
Index: src/wp-includes/version.php
===================================================================
--- src/wp-includes/version.php	(revision 36179)
+++ src/wp-includes/version.php	(working copy)
@@ -1,29 +1,29 @@
 <?php
 /**
  * The WordPress version string
  *
  * @global string $wp_version
  */
 $wp_version = '4.5-alpha-35776-src';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
  *
  * @global int $wp_db_version
  */
-$wp_db_version = 35700;
+$wp_db_version = 35701;
 
 /**
  * Holds the TinyMCE version
  *
  * @global string $tinymce_version
  */
 $tinymce_version = '4208-20151113';
 
 /**
  * Holds the required PHP version
  *
  * @global string $required_php_version
  */
 $required_php_version = '5.2.4';