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+# Update from 4.0 to 4.1
+
+## GitLab CI 4.x 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 4-1-stable
+```
+
+### 4. Install libs, migrations etc
+
+```
+# For MySQL users
+bundle install --without postgres development test --deployment
+
+# For Postgres users
+bundle install --without mysql development test --deployment
+
+# Run migrations
+bundle exec rake db:migrate RAILS_ENV=production
+
+# Update cron
+bundle exec whenever -w
+```
+
+### 5. Start web application
+
+    sudo service gitlab_ci start
+
+### 6. Make sure your runners are version 4.0
+
+
+    cd path_to_runner
+    cat VERSION
+
+To update runners follow this instructions https://github.com/gitlabhq/gitlab-ci-runner#update