> ## Documentation Index
> Fetch the complete documentation index at: https://launchdarkly-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# SDK features

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

> For the complete documentation index, see [llms.txt](/llms.txt). For the full documentation snapshot, see [llms-full.txt](/llms-full.txt).

## Overview

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](/sdk#supported-features).

For a comparison of the different kinds of SDKs available, read [Choosing an SDK type](/sdk/concepts/client-side-server-side).

## Supported features

LaunchDarkly SDKs support the following features:

* [Aliasing users](/sdk/features/aliasing-users)
* [Anonymous contexts and users](/sdk/features/anonymous)
* [Automatic environment attributes](/sdk/features/environment-attributes)
* [Big segments](/sdk/features/big-segments)
* [Bootstrapping](/sdk/features/bootstrapping)
* [Configuration](/sdk/features/config)
* [Context configuration](/sdk/features/context-config)
* [Customizing AI Configs](/sdk/features/ai-config)
* [Data saving mode](/sdk/features/data-saving-mode)
* [Evaluating flags](/sdk/features/evaluating)
* [Flag evaluation reasons](/sdk/features/evaluation-reasons)
* [Flushing events](/sdk/features/flush)
* [Getting all flags](/sdk/features/all-flags)
* [Hooks](/sdk/features/hooks)
* [Identifying and changing contexts](/sdk/features/identify)
* [Inspectors](/sdk/features/inspectors)
* [Logging configuration](/sdk/features/logging)
* [Migrations](/sdk/features/migrations)
* [Monitoring SDK status](/sdk/features/monitoring)
* [Multiple environments](/sdk/features/multiple-environments)
* [Offline mode](/sdk/features/offline-mode)
* [OpenTelemetry](/sdk/features/opentelemetry-server-side)
* [Private attributes](/sdk/features/private-attributes)
* [Reading flags from a file](/sdk/features/flags-from-files)
* [Relay Proxy configuration](/sdk/features/relay-proxy-configuration)
* [Secure mode](/sdk/features/secure-mode)
* [Sending custom events](/sdk/features/events)
* [Shutting down](/sdk/features/shutdown)
* [Storing data](/sdk/features/storing-data)
* [Subscribing to flag changes](/sdk/features/flag-changes)
* [Test data sources](/sdk/features/test-data-sources)
* [Tracking AI metrics](/sdk/features/ai-metrics)
* [Web proxy configuration](/sdk/features/web-proxy)