*Make sure you view this [upgrade guide from the `master` branch](https://gitlab.com/gitlab-org/gitlab-ce/tree/master/doc/update/6.2-to-6.3.md) for the most up to date instructions.*
**Requires version: 6.1 or 6.2.**
## 0. Backup
It's useful to make a backup just in case things go south: (With MySQL, this may require granting "LOCK TABLES" privileges to the GitLab user on the database version)
The gitlab-shell config changed recently, so check for config file changes and make `/home/git/gitlab-shell/config.yml` the same as <https://github.com/gitlabhq/gitlab-shell/blob/master/config.yml.example>
## 4. Install libs, migrations, etc.
```bash
cd /home/git/gitlab
# The Modernizr gem was yanked from RubyGems. It is required for GitLab >= 2.8.0
# Edit `Gemfile` and change `gem "modernizr", "2.5.3"` to
# `gem "modernizr-rails", "2.7.1"``
sudo -u git -H vim Gemfile
# MySQL
# Run a bundle install without deployment to generate the new Gemfile
sudo -u git -H bundle install --without development test postgres --no-deployment
# Install libs (with deployment this time)
sudo -u git -H bundle install --without development test postgres --deployment
# PostgreSQL
# Run a bundle install without deployment to generate the new Gemfile
sudo -u git -H bundle install --without development test mysql --no-deployment
# Install libs (with deployment this time)
sudo -u git -H bundle install --without development test mysql --deployment
- Make `/home/git/gitlab/config/gitlab.yml` same as <https://gitlab.com/gitlab-org/gitlab-ce/blob/6-3-stable/config/gitlab.yml.example> but with your settings.
- Make `/home/git/gitlab/config/unicorn.rb` same as <https://gitlab.com/gitlab-org/gitlab-ce/blob/6-3-stable/config/unicorn.rb.example> but with your settings.