Feature Flags

Added

• Multi-site support: flags can apply to all sites (default) or be scoped to specific sites on multi-site installs (#1)
• Sites are an explicit opt-in: a flag scoped to specific sites is off on any site you don't enable, including sites added later
• Optional siteId argument on isEnabled() (PHP and Twig) to evaluate a flag for a specific site
• Flag::$siteSettings model property
• Rollout strategy per flag: All visitors (targeting rules and rollout are independent paths — the default) or Rule-matched only (the rollout percentage filters within the rule-matched audience)

Changed

• Evaluation now applies a per-site gate (after the master switch, before targeting rules) on multi-site installs. Targeting rules are evaluated only on sites where the flag is enabled
• Per-site evaluation fails closed for site-scoped flags when no site can be resolved (console/queue without an explicit siteId, or an unknown siteId); pass an explicit, valid siteId for a reliable per-site answer outside web requests
• The per-request evaluation cache key now includes the requested site context
• Cache version bumped (stored flag objects are refreshed on upgrade)

Fixed

• The "Subscription Plan" rule type now appears in the flag editor when Craft Commerce is installed (it was previously always hidden because of a missing import)

Fixed

• Save and edit with keyboard combo fixed for Flags

Added

• Save and add another keyboard combo for 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