SDK features

This category contains documentation topics explaining the features available in LaunchDarkly SDKs.

For a summary of which versions of each SDK support which features, read Supported features.

For a comparison of the different kinds of SDKs available, read Choosing an SDK type.

Supported features

LaunchDarkly SDKs support the following features:

• SDK configuration
• Aliasing users
• Anonymous contexts and users
• Automatic environment attributes
• Big segments
• Bootstrapping
• Context configuration
• Customizing AgentControl configs
• Data saving mode
• Flag variation evaluation
• Flag variation evaluation details
• Flushing events
• Getting all flags
• Hooks
• Identifying and changing contexts
• Inspectors
• Logging configuration
• Migrations
• Monitoring SDK status
• Multiple environments
• Offline mode
• OpenTelemetry
• Private attributes
• Reading flags from a file
• Relay Proxy configuration
• Secure mode
• Tracking custom events
• Shutting down
• Storing data
• Subscribing to flag changes
• Test data sources
• Tracking AI metrics
• Web proxy configuration