Feature Flags

Added

• Feature flag management with enable/disable toggle
• Flag types: release, experiment, ops, permission
• Human-readable name and kebab-case handle for each flag
• Targeting rules: user ID, user group, environment
• Subscription plan targeting (requires Craft Commerce)
• Percentage-based rollout with consistent user bucketing
• Anonymous visitor bucketing via $bucketKey parameter and configurable cookie
• EvaluationService::computeBucket() static helper for rollout hash
• Optional flag expiration dates
• Three-layer caching: per-request, application cache, database
• Configurable cache TTL (default 60 seconds)
• Versioned cache keys via FlagService::CACHE_VERSION
• Audit logging with user attribution
• Configurable audit log toggle
• Custom plugin name setting
• Extensible rule types via RegisterRuleTypesEvent
• Custom rule evaluation via EvaluateRuleEvent
• Twig variable: craft.featureFlags.isEnabled('flag-handle')
• PHP API: FeatureFlags::getInstance()->evaluationService->isEnabled('flag-handle')
• CP permissions: view and manage
• Console commands: list, info, enable, disable, delete, cleanup-expired
• PHPUnit test suite covering bucket math, distribution, handle generation, and flag types