Set Gerrit to 3.9.0-rc4

Change-Id: Ie5cdaeb8c06e2041b99c91698c6e5d595effac84
diff --git a/fpm/Makefile b/fpm/Makefile
index e49ff97..163669c 100644
--- a/fpm/Makefile
+++ b/fpm/Makefile
@@ -1,9 +1,9 @@
 VERSION=3.9.0
-WAR_VERSION=3.9.0-rc3
+WAR_VERSION=3.9.0-rc4
 BRANCH=stable-3.9
 URL=https://storage.googleapis.com/gerrit-releases/gerrit-$(WAR_VERSION).war
 CI_URL=https://gerrit-ci.gerritforge.com
-RELEASE=0rc3
+RELEASE=0rc4
 
 NAME=gerrit
 CATEGORY=Development
diff --git a/macOS/Makefile b/macOS/Makefile
index ab0a09d..ab7b719 100644
--- a/macOS/Makefile
+++ b/macOS/Makefile
@@ -1,4 +1,4 @@
-VERSION := 3.9.0-rc3
+VERSION := 3.9.0-rc4
 
 all: server