From 2.8 to 2.9

1. Stop server & resque

sudo service gitlab stop

2. Follow instructions

# Get latest code
git pull origin stable

# Install gems
bundle install --without development test

# Migrate db
bundle exec rake db:migrate RAILS_ENV=production

# Check APP Status
bundle exec rake gitlab:app:status RAILS_ENV=production

Compare your config/gitlab.yml & config/gitlab.yml.example for new settings

Especially for LDAP

3. Start all

sudo service gitlab start