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+# Update from 3.2 to 4.0
+
+## GitLab CI 4.0 requires GitLab 6.3 or higher
+
+### 1. stop CI server
+
+    sudo service gitlab_ci stop
+
+### 2. Switch to your gitlab_ci user
+
+```
+sudo su gitlab_ci
+cd /home/gitlab_ci/gitlab-ci
+```
+
+### 3. get latest code
+
+```
+git fetch
+git checkout 4-0-stable
+```
+
+### 4. Install libs, migrations etc
+
+```
+bundle install --without development test --deployment
+bundle exec rake db:migrate RAILS_ENV=production
+bundle exec whenever -w
+```
+
+### 5. Start web application
+
+    sudo service gitlab_ci start
+
+### 6. Update your runners to version 4.0