diff --git a/wp-admin/includes/class-wp-community-events.php b/wp-admin/includes/class-wp-community-events.php
index 053d92db1a..a204f9cafe 100644
--- a/wp-admin/includes/class-wp-community-events.php
+++ b/wp-admin/includes/class-wp-community-events.php
@@ -92,8 +92,17 @@ class WP_Community_Events {
 			return $cached_events;
 		}
 
-		$api_url        = 'https://api.wordpress.org/events/1.0/';
-		$request_args   = $this->get_request_args( $location_search, $timezone );
+		// include an unmodified $wp_version
+		include( ABSPATH . WPINC . '/version.php' );
+
+		$api_url      = 'http://api.wordpress.org/events/1.0/';
+		$request_args = $this->get_request_args( $location_search, $timezone );
+		$request_args['user-agent'] = 'WordPress/' . $wp_version . '; ' . home_url( '/' );
+
+		if ( wp_http_supports( array( 'ssl' ) ) ) {
+			$api_url = set_url_scheme( $api_url, 'https' );
+		}
+
 		$response       = wp_remote_get( $api_url, $request_args );
 		$response_code  = wp_remote_retrieve_response_code( $response );
 		$response_body  = json_decode( wp_remote_retrieve_body( $response ), true );
diff --git a/wp-admin/includes/credits.php b/wp-admin/includes/credits.php
index 005858c384..ddc70a3db8 100644
--- a/wp-admin/includes/credits.php
+++ b/wp-admin/includes/credits.php
@@ -15,7 +15,9 @@
  * @return array|false A list of all of the contributors, or false on error.
  */
 function wp_credits() {
-	$wp_version = get_bloginfo( 'version' );
+	// include an unmodified $wp_version
+	include( ABSPATH . WPINC . '/version.php' );
+
 	$locale = get_user_locale();
 
 	$results = get_site_transient( 'wordpress_credits_' . $locale );
@@ -24,7 +26,14 @@ function wp_credits() {
 		|| false !== strpos( $wp_version, '-' )
 		|| ( isset( $results['data']['version'] ) && strpos( $wp_version, $results['data']['version'] ) !== 0 )
 	) {
-		$response = wp_remote_get( "http://api.wordpress.org/core/credits/1.1/?version={$wp_version}&locale={$locale}" );
+		$url = "http://api.wordpress.org/core/credits/1.1/?version={$wp_version}&locale={$locale}";
+		$options = array( 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ) );
+
+		if ( wp_http_supports( array( 'ssl' ) ) ) {
+			$url = set_url_scheme( $url, 'https' );
+		}
+
+		$response = wp_remote_get( $url, $options );
 
 		if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) )
 			return false;
diff --git a/wp-admin/includes/dashboard.php b/wp-admin/includes/dashboard.php
index ec1f03afb1..688e409896 100644
--- a/wp-admin/includes/dashboard.php
+++ b/wp-admin/includes/dashboard.php
@@ -1509,12 +1509,20 @@ function wp_check_browser_version() {
 	$key = md5( $_SERVER['HTTP_USER_AGENT'] );
 
 	if ( false === ($response = get_site_transient('browser_' . $key) ) ) {
+		// include an unmodified $wp_version
+		include( ABSPATH . WPINC . '/version.php' );
+
+		$url = 'http://api.wordpress.org/core/browse-happy/1.1/';
 		$options = array(
-			'body'			=> array( 'useragent' => $_SERVER['HTTP_USER_AGENT'] ),
-			'user-agent'	=> 'WordPress/' . get_bloginfo( 'version' ) . '; ' . home_url()
+			'body'       => array( 'useragent' => $_SERVER['HTTP_USER_AGENT'] ),
+			'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' )
 		);
 
-		$response = wp_remote_post( 'http://api.wordpress.org/core/browse-happy/1.1/', $options );
+		if ( wp_http_supports( array( 'ssl' ) ) ) {
+			$url = set_url_scheme( $url, 'https' );
+		}
+
+		$response = wp_remote_post( $url, $options );
 
 		if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) )
 			return false;
diff --git a/wp-admin/includes/import.php b/wp-admin/includes/import.php
index 0d534422c2..ca12dfa8f0 100644
--- a/wp-admin/includes/import.php
+++ b/wp-admin/includes/import.php
@@ -131,10 +131,15 @@ function wp_get_popular_importers() {
 
 	if ( ! $popular_importers ) {
 		$url = add_query_arg( array(
-			'locale'  => get_user_locale(),
+			'locale'  => $locale,
 			'version' => $wp_version,
 		), 'http://api.wordpress.org/core/importers/1.1/' );
-		$options = array( 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url() );
+		$options = array( 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ) );
+
+		if ( wp_http_supports( array( 'ssl' ) ) ) {
+			$url = set_url_scheme( $url, 'https' );
+		}
+
 		$response = wp_remote_get( $url, $options );
 		$popular_importers = json_decode( wp_remote_retrieve_body( $response ), true );
 
diff --git a/wp-admin/includes/plugin-install.php b/wp-admin/includes/plugin-install.php
index 6b71832a09..1714acda71 100644
--- a/wp-admin/includes/plugin-install.php
+++ b/wp-admin/includes/plugin-install.php
@@ -141,12 +141,16 @@ function plugins_api( $action, $args = array() ) {
 	$res = apply_filters( 'plugins_api', false, $action, $args );
 
 	if ( false === $res ) {
+		// include an unmodified $wp_version
+		include( ABSPATH . WPINC . '/version.php' );
+
 		$url = $http_url = 'http://api.wordpress.org/plugins/info/1.0/';
 		if ( $ssl = wp_http_supports( array( 'ssl' ) ) )
 			$url = set_url_scheme( $url, 'https' );
 
 		$http_args = array(
 			'timeout' => 15,
+			'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ),
 			'body' => array(
 				'action' => $action,
 				'request' => serialize( $args )
diff --git a/wp-admin/includes/theme.php b/wp-admin/includes/theme.php
index c5de5e5c9c..9da33032f5 100644
--- a/wp-admin/includes/theme.php
+++ b/wp-admin/includes/theme.php
@@ -448,11 +448,15 @@ function themes_api( $action, $args = array() ) {
 	$res = apply_filters( 'themes_api', false, $action, $args );
 
 	if ( ! $res ) {
+		// include an unmodified $wp_version
+		include( ABSPATH . WPINC . '/version.php' );
+
 		$url = $http_url = 'http://api.wordpress.org/themes/info/1.0/';
 		if ( $ssl = wp_http_supports( array( 'ssl' ) ) )
 			$url = set_url_scheme( $url, 'https' );
 
 		$http_args = array(
+			'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ),
 			'body' => array(
 				'action' => $action,
 				'request' => serialize( $args )
diff --git a/wp-includes/update.php b/wp-includes/update.php
index f25e644d62..f178470a36 100644
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -301,7 +301,7 @@ function wp_update_plugins( $extra_stats = array() ) {
 			'locale'       => wp_json_encode( $locales ),
 			'all'          => wp_json_encode( true ),
 		),
-		'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+		'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' )
 	);
 
 	if ( $extra_stats ) {
@@ -479,7 +479,7 @@ function wp_update_themes( $extra_stats = array() ) {
 			'translations' => wp_json_encode( $translations ),
 			'locale'       => wp_json_encode( $locales ),
 		),
-		'user-agent'	=> 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+		'user-agent'	=> 'WordPress/' . $wp_version . '; ' . home_url( '/' )
 	);
 
 	if ( $extra_stats ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 938852744a..55511f19ef 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41604';
+$wp_version = '4.9-alpha-41605';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.