LaunchDarkly

Recently shipped Relay Proxy v8.21.0 with multiple SDK keys per environment, plus a new CLI setup wizard.

Relay Proxy v8.21.0 brought multiple SDK keys to GA. Environments now support several SDK keys and mobile keys at once, each with its own name, description, and optional expiration date — enabling key rotation without downtime and per-service access isolation. Fine-grained custom roles control who can view or manage individual keys.

CLI v3.11.0 added a setup wizard. The new command walks through initial configuration interactively. Dev server startup also got faster via parallel and streaming modes, and HIGH/CRITICAL Dependabot alerts were resolved.

Relay Proxy v9.0.0-rc.6 reworked OpenTelemetry metrics. OTel attributes now follow semantic conventions under a single vendor namespace, the events send-error metric renamed to launchdarkly.relay.events.failed, and the relay.id resource attribute was removed. High-cardinality attributes were trimmed from request metrics, with a cumulative request counter added. Status endpoints gained an expect query parameter for server-side health checks.

Mobile SDKs added post-start plugin registration. Android 5.16.0 and iOS 11.6.0 both ship registerPlugin, letting plugins attach after the client has started.

Terraform Provider v3.1.x and assorted SDKs shipped fixes. v3.1.4 removed trailing flag variations in descending index order; v3.1.3 enforces lowercase view keys; v3.1.2 validates view keys before flag/segment create. JS client SDK 4.10.0 wired the fdv1-fallback capability into contract tests; React, Vue, and browser SDKs bumped to match.