Development

Performance
Enable or disable page caching for anonymous users and set CSS and JS bandwidth optimization options.
Logging and errors
Settings for logging and alerts modules. Various modules can route Drupal's system events to different destinations, such as syslog, database, email, etc.
Maintenance mode
Take the site offline for maintenance or bring it back online.
HTTPRL
Configure HTTPRL settings.
jQuery Update
Configure settings related to the jQuery upgrade, the library path and compression.